Seller Identification
The Seller is a sole trader registered in the Slovak Republic and operates under Slovak law.
Payment processing and merchant-of-record services are provided by Paddle.com Market Limited ("Paddle"), a company registered in England and Wales (Company No. 08244891), 15 Ingestre Place, London, W1F 0DU, United Kingdom. Paddle collects payments, issues invoices, and handles applicable sales taxes and VAT on behalf of the Seller. Your payment contract and tax invoice are with Paddle. Your software license contract is with the Seller.
Nature of the Software and Definitions
Nature of the Software: The Firmware operates by passively detecting drone Remote Identification (Remote ID) signals broadcast publicly by drones in accordance with applicable aviation regulations (including ASTM F3411 and ASD-STAN prEN 4709-002). Remote ID signals are transmitted openly by drones and are intended to be publicly receivable. The Firmware receives these publicly broadcast signals and relays the data contained within them via Bluetooth to the D.A.R.S. Companion App or other compatible applications. The Software does not intercept private communications, access secured systems, or process any data that is not already publicly broadcast by the drone itself.
- "Software" means collectively the Firmware and the Companion App, together with any associated documentation, and any updates provided under these Terms.
- "Firmware" means the D.A.R.S. Firmware v1 binary and configuration files designed to operate on the Device. The Firmware is offered in hardware-specific builds, including a 2.4 GHz build for the M5Stack Unit C6L and a dual-band (2.4 GHz + 5 GHz) build for the Seeed Studio XIAO ESP32-C5. Each License Key is valid for one build on one Device; the applicable build is determined by the Device you install it on.
- "Companion App" means the D.A.R.S. Android companion application, available for download at getdars.com and via the Google Play store. The Companion App requires Android 8.0 or later. There is no iPhone, iPad or iOS version of the Companion App, and none is offered. The Companion App is provided free of charge, is available independently of any Firmware purchase, and is not the product being sold; the product being sold is the Firmware. The Companion App may offer optional paid in-app purchases (for example a "PRO" version); any such in-app purchase is a separate transaction, is handled by the applicable app store, and is not included in the Firmware License Fee. PRO may alternatively be obtained by purchasing a "Firmware + PRO" licence, as described in §7.4.
- "License Key" means the unique alphanumeric activation code issued to you upon purchase in the format
DARS-XXXX-XXXX-XXXX-XXXX. - "PRO" means the optional set of additional Companion App features identified as PRO in the app at the relevant time. PRO is a feature set of the Companion App and is not a separate product, a subscription, or a service.
- "Device" means the single supported hardware unit — either an M5Stack Unit C6L or a Seeed Studio XIAO ESP32-C5, according to the Firmware build purchased — identified by its factory-programmed MAC address, to which your License Key is permanently bound upon Activation of the Firmware.
- "Activation" means the process of binding a License Key to a specific Device MAC address via the web-based installer tool at getdars.com, after which the Firmware is operational on that Device.
- "Consumer" means a natural person acting outside the scope of their trade, business, craft, or profession.
- "Business Customer" means any legal or natural person acting in the course of their trade, business, craft, or profession.
License Grant
Subject to these Terms and timely payment of the applicable license fee, the Seller grants you the following non-exclusive, non-transferable, non-sublicensable, worldwide, perpetual licenses:
Each License Key constitutes one (1) single-use license for one (1) Device only. A separate License Key must be purchased for each additional Device. A license to:
- use the Firmware solely on the single Device to which your License Key has been activated; and
- use the Firmware for its intended purpose: receiving, processing, and rebroadcasting drone Remote Identification signals.
This license is personal to you and is bound to the specific Device.
A license to:
- download, install, and use the Companion App on any Android device (Android 8.0 or later) that you personally own or control; and
- use the Companion App for its intended purpose: companion functionality to the Firmware, including drone identification lookups.
The Companion App license is personal to you. It may not be shared with, transferred to, or used by any other person.
You may resell or transfer the physical Device (the M5Stack Unit C6L or Seeed Studio XIAO ESP32-C5 hardware unit) including any Firmware installed on it. However, the license granted under Section 3.1 is personal to the original purchaser and does not pass to any subsequent owner or possessor of the Device. Any new owner of the Device:
- acquires no rights under this license agreement;
- is not entitled to updates, re-flash permissions, or any support from the Seller; and
- uses any Firmware installed on the Device entirely at their own risk and without any warranty from the Seller.
If a new owner wishes to use the Software lawfully, they must purchase a separate license from the Seller at getdars.com.
By purchasing a license, you represent and warrant that:
- you are at least 18 years of age, or the age of legal majority in your jurisdiction if higher;
- you have the legal capacity to enter into a binding contract; and
- if you are purchasing on behalf of a legal entity, you have the authority to bind that entity to these Terms.
No other rights are granted under these Terms.
Each license is granted for personal, non-commercial use only — that is, use by the individual purchaser on a single Device for their own purposes. The license does not permit:
- integration of the Software or Device into a commercial product, service, or platform sold or provided to third parties;
- deployment of the Software or Device as part of a commercial drone monitoring, counter-UAS, security, or surveillance service; or
- resale, distribution, or sub-licensing of the Software or License Key in any form.
Bulk purchases and commercial licensing arrangements (five or more licenses, or any commercial deployment) require a separate written agreement with the Seller. To enquire, contact just@getdars.com.
License Restrictions
You may NOT, and you may not permit any third party to:
- copy, reproduce, distribute, publish, or make available the Software or any part of it to any third party, whether for commercial gain or otherwise;
- sell, resell, rent, lease, lend, sublicense, transfer, or otherwise commercially exploit the Software (except as expressly permitted under Section 3.3 with respect to resale of the physical Device) or your License Key;
- reverse-engineer, decompile, disassemble, decrypt, or attempt to derive the source code, algorithms, or trade secrets of the Software, except and only to the extent that applicable law expressly permits such activity and cannot be contractually excluded;
- modify, adapt, translate, or create derivative works based on the Software;
- remove, alter, or obscure any proprietary notices, labels, branding, or identification within the Software;
- use the Software on any device other than the single Device to which your License Key has been activated;
- use the Software for any unlawful purpose, including but not limited to any use that violates aviation regulations, frequency regulations, or drone Remote Identification laws applicable in your jurisdiction;
- circumvent, disable, or otherwise interfere with any license enforcement, activation, or security mechanism within the Software; or
- misrepresent the Software or the Device to any third party, including by representing it as a certified safety system, air traffic management tool, counter-drone system, government-approved instrument, or any product with capabilities it does not possess; or use the Seller's name, branding, or marks in any marketing, endorsement, or public communication without prior written consent from the Seller.
The restrictions in this Section apply to the Software in its entirety, including both the Firmware and the Companion App. Any use not expressly permitted by these Terms is prohibited and constitutes a material breach of this agreement.
Activation, Device Binding, and Re-Flashing
Updates and New Versions
Price and Payment
Right of Withdrawal (Consumers Only)
This section applies only to Consumers as defined in Section 2.
Where a refund is available under mandatory applicable law (including any applicable statutory withdrawal or guarantee rights), the following condition applies as a prerequisite to processing any such refund:
You must use the official D.A.R.S. Wipe Tool (available at getdars.com/installer under "Wipe for Refund") to permanently erase the firmware from your device before submitting a refund request. The Wipe Tool will irrevocably revoke your License Key and record the wipe timestamp in the Seller's system. You will receive an on-screen confirmation; retain a screenshot or note of the wipe timestamp.
Refund requests submitted without a completed wipe will not be processed until the wipe requirement is fulfilled. Once the wipe is completed, contact just@getdars.com with your license key and wipe confirmation to initiate the refund.
The minimum refund window available to you is the period required by the mandatory consumer protection law governing your contract (e.g., 14 days under EU law where applicable). This clause does not create or extend any refund right beyond what is required by mandatory law.
From time to time the Seller may operate a voluntary promotional programme under which a customer who posts eligible original content featuring the product may receive a partial or full refund of the licence fee, on the terms published at getdars.com/creators/. This is a discretionary marketing offer, made in addition to and separate from any statutory rights described above. It is not a statutory refund right. The Seller may vary, suspend, or withdraw the programme at any time; a claim validly submitted before a change is honoured on the terms then in force.
Eligibility, refund percentages, view thresholds, permitted networks, and the requirement that views be organic are as set out at getdars.com/creators/. Each claim is reviewed manually and the Seller's decision is final. Unlike Section 8.5, a promotional refund does not require you to wipe the firmware and does not revoke your License Key — you keep the Software.
Claim window (120 days): A promotional refund is returned to your original payment method through the Seller's payment processor. Because card-scheme and processor rules permit a refund to the original payment for a limited period only, a promotional refund claim, together with all required evidence, must be received within 120 days of the date of the original payment. Claims received after that period cannot be processed and will be declined, regardless of when the relevant view threshold is reached.
One refund per purchase; no further refund after a partial refund: A maximum of one promotional refund is available per purchase. Once any refund — including a partial-percentage promotional refund — has been issued in respect of a purchase, no further refund of any kind will be issued for that purchase, to the maximum extent permitted by mandatory law. Reaching a higher view threshold after a partial refund has already been paid does not entitle you to the difference, to a top-up, or to any additional amount. Where any mandatory refund would otherwise be due, amounts already refunded are credited against it so that total refunds for a purchase never exceed the price actually paid.
Disclaimer of Warranties and Hardware Compatibility
The product being sold is the D.A.R.S. Firmware for the supported hardware (the M5Stack Unit C6L, or the Seeed Studio XIAO ESP32-C5 for the dual-band build) — specifically its passive drone Remote Identification (Remote ID) detection, signal processing, and BLE relay functionality. This is the sole item for which the License Fee is charged.
The following are provided free of charge as supplementary bonuses alongside the Firmware. They are not products being sold and form no part of the commercial transaction:
- Android Companion App — the D.A.R.S. app is a free download available to anyone (for example via the Google Play store), independently of any Firmware purchase. It is not sold and is not part of this transaction. The app may offer optional paid in-app purchases (such as a "PRO" version); any such in-app purchase is a separate transaction, is handled by the applicable app store, and is not included in the License Fee.
- 3D-Printable Case Model — design files for a printable enclosure for the applicable Device (the M5Stack Unit C6L, or the XIAO ESP32-C5 bare board and Expansion Board), provided free of charge as a convenience.
- LORA Mode — optional LoRa mesh networking, MeshCore compatibility, and BLE GATT companion radio. MeshCore compatibility is provided on a best-efforts basis and may change without notice as the MeshCore protocol evolves.
- SENSOR Mode — optional mesh sensor-node operation, in which detections are additionally published over LoRa to a MeshCore channel. Provided on the same best-efforts basis as LORA Mode.
- EFB Output (GDL-90) — an optional feature of the free Android app that forwards detections to third-party Electronic Flight Bag applications. It is disabled by default, is not sold, and is subject to §9.11 below.
- Home Assistant Integration — an optional, free, open-source (MIT-licensed) integration and map card for viewing detections in Home Assistant. It is not sold and is subject to §9.13 below.
These bonus items are provided “AS IS” with no warranty of any kind. Their availability, functionality, or compatibility may change or be discontinued at any time without notice.
The failure, unavailability, modification, or removal of any bonus feature or item does not constitute a defect in the purchased product (the Firmware) and does not entitle you to a refund, price reduction, or any other remedy, to the maximum extent permitted by applicable law.
The Android app can optionally forward detections to third-party Electronic Flight Bag (EFB) applications using the GDL-90 protocol. This feature is disabled by default and must be enabled deliberately by you.
The EFB Output is provided for situational awareness on an advisory basis only. It is NOT a certified, approved, or airworthy traffic, surveillance, collision-avoidance, detect-and-avoid, or counter-UAS system, and it must never be used as a basis for separation, avoidance, navigation, or any other operational or safety-critical decision.
You acknowledge in particular that: (a) it shows only aircraft that actively broadcast Remote ID and are within reception range — non-broadcasting, non-compliant, or distant aircraft are invisible to it; (b) Remote ID does not provide pressure altitude, so reported altitudes do not share a reference datum with ADS-B or transponder traffic and are approximate; (c) positions, identifiers, and altitudes are transmitted by third parties and are neither verified nor validated by us; (d) delivery over Wi-Fi is best-effort and may be delayed, incomplete, or interrupted; and (e) how any third-party EFB filters, renders, or ages the data supplied to it is entirely outside our control.
You are solely responsible for compliance with all applicable aviation regulations and for the safe conduct of any flight. Use of this feature does not relieve you of any duty of vigilance, see-and-avoid obligation, or regulatory requirement. Third-party EFB applications are governed by their own terms; we are not affiliated with, endorsed by, or responsible for them.
In SENSOR Mode the device transmits detection data over LoRa radio to a MeshCore channel. Unless you configure your own private channel, the default channel is publicly published, and anyone within radio range holding that channel key can receive what your device transmits — including drone identifiers, positions, and, where broadcast by the aircraft, operator positions.
You are responsible for deciding whether such retransmission is lawful and appropriate in your jurisdiction and circumstances, including under applicable radio, privacy, and data-protection law, and for obtaining any authorisation your local rules require for transmitting on the frequency, power, and duty cycle you configure. SENSOR Mode transmits; it is not a receive-only function.
An optional Home Assistant integration and Lovelace map card (the “Integration”) is made available free of charge and as open-source software (MIT-licensed) as a supplementary bonus. It is not sold, forms no part of the commercial transaction, and is not required to use the Firmware or the Device.
The Integration is provided “AS IS”, with no warranty of any kind, on a best-efforts basis. Home Assistant, the HACS add-on store, and the third-party libraries and map/data services the Integration relies on are outside the Seller's control; the Integration's availability, functionality, and compatibility may change, break, or be discontinued at any time without notice, including as a result of updates to Home Assistant or its ecosystem.
You install and run the Integration entirely at your own risk. To the maximum extent permitted by applicable law, the Seller is not responsible for the functionality of the Integration, nor for any damage, malfunction, data loss, downtime, instability, or other adverse effect to your Home Assistant installation, host hardware, network, or any other software or system arising from installing, configuring, or using it.
No affiliation: The Seller and D.A.R.S. are not affiliated with, endorsed by, sponsored by, or associated with Home Assistant, the Open Home Foundation, or Nabu Casa, Inc. “Home Assistant” and related names and marks are trademarks of the Open Home Foundation and are used for identification and interoperability purposes only.
The free Companion App displays maps and related geospatial data supplied by third parties, namely: map basemaps (OpenFreeMap, with map data © OpenStreetMap contributors); an optional satellite imagery basemap (Esri World Imagery, provided through the Esri ArcGIS Location Platform, with imagery © Esri, Maxar, Earthstar Geographics and others); and, for the optional Above-Ground-Level (AGL) height feature, downloadable terrain-elevation data (AWS Terrain Tiles / Tilezen, derived from Copernicus, SRTM and other public sources). These are free, optional features of the free app and form no part of the product being sold.
This geospatial data is owned by its respective providers and is made available subject to those providers' own terms of use and licences. By enabling or using these features you agree to comply with the applicable provider terms, including any attribution requirements. Attribution for the active map or imagery source is shown in the app's on-map information (“ⓘ”) control and in the app's Licences screen. In particular, satellite imagery is streamed for on-screen display only; you may not scrape, redistribute, resell, or store it offline, and it is provided for visualization within the Companion App.
The AGL height is an estimate derived from bare-earth terrain data (it does not account for buildings or vegetation) and is subject to GPS, barometric and terrain-data error. It is advisory only and is not a compliance, navigation, or air-traffic instrument; you must not rely on it to meet any legal altitude limit or for the safe conduct of flight.
These map, imagery and terrain features are provided “AS IS” with no warranty of any kind. The third-party services they depend on are outside the Seller's control and their availability, accuracy, coverage, resolution, and continued operation may change or be discontinued at any time without notice. The failure, unavailability, or removal of any such feature does not constitute a defect in the purchased product and does not entitle you to any refund or remedy, to the maximum extent permitted by applicable law.
No affiliation: The Seller and D.A.R.S. are not affiliated with, endorsed by, or sponsored by Esri, OpenStreetMap, OpenFreeMap, Mapzen/Tilezen, Amazon Web Services, or any other data provider. Product and service names are the property of their respective owners and are used for identification and interoperability only.
Limitation of Liability
Intellectual Property
Firmware Open-Source Components (D.A.R.S. Firmware for M5Stack Unit C6L and Seeed Studio XIAO ESP32-C5):
| Component | Licence | Copyright |
|---|---|---|
| ESP-IDF | Apache 2.0 | 2015–2024 Espressif Systems |
| FreeRTOS Kernel | MIT | 2021 Amazon.com, Inc. |
| Mbed TLS | Apache 2.0 | 2006–2023 Arm Limited |
| RadioLib | MIT | 2018 Jan Gromeš |
| cJSON | MIT | 2009–2017 Dave Gamble |
| lwIP | BSD 3-Clause | Swedish Institute of Computer Science |
| WPA Supplicant | BSD 3-Clause | 2003–2022 Jouni Malinen |
| ed25519 (orlp) | Public Domain | Orson Peters |
| SSD1306 driver | MIT | nopnop2002 |
| Espressif Binary Libraries | Espressif proprietary | Espressif Systems |
Licence texts: Apache 2.0 · MIT · BSD 3-Clause
The Seller's proprietary code, algorithms, and integration of the above open-source components remain the exclusive intellectual property of the Seller and are not covered by any open-source licence.
Export and Regulatory Compliance
Term and Termination
Governing Law and Dispute Resolution
Privacy Policy and Data Protection (GDPR)
This section constitutes the Privacy Policy of the Seller and provides the information required under Articles 13 and 14 of Regulation (EU) 2016/679 ("GDPR") and applicable Slovak data protection law.
The controller of your personal data is:
Šimon Slávik - fotozhora
Sládkovičova 2606/5A, 900 28 Ivanka pri Dunaji, Slovak Republic
E-mail: just@getdars.com
- Order data from Paddle (name/business name, e-mail address, country, Paddle Order ID) — Purpose: fulfil the license contract. Legal basis: performance of a contract (GDPR Art. 6(1)(b)).
- Device MAC address — Purpose: bind the License Key to your Device, prevent unauthorised use, administer re-flash permissions. Legal basis: performance of a contract (GDPR Art. 6(1)(b)).
- Activation timestamp and re-flash history — Purpose: license administration and fraud prevention. Legal basis: legitimate interests (GDPR Art. 6(1)(f)).
- Companion App — does not collect, store, or transmit any personal data to the Seller or any third party.
The Seller does NOT collect browsing data, location data, payment card data, or any data beyond what is listed above.
When you make a purchase, Paddle acts as the data controller for payment processing. Paddle's Privacy Policy is available at https://www.paddle.com/legal/privacy. The Seller receives only the order data listed in Section 15.2 and does not have access to your payment card details.
- Cloudflare, Inc. (United States) — infrastructure and hosting for the license management systems and web installer (data processor under appropriate DPA).
- Paddle.com Market Limited — as described in Section 15.3.
- Resend (Plus Five Five, Inc.) (United States) — delivers your License Key to the e-mail address you provided at checkout. Resend processes your e-mail address and the License Key solely to send this transactional message on the Seller's behalf (data processor under appropriate DPA). Resend's privacy policy: resend.com/legal/privacy-policy.
The Seller does not sell, rent, or share your personal data with any other third parties, except where required by applicable law.
Some processors (Cloudflare and Resend) operate servers in the United States and other locations outside the EEA. Where personal data is transferred outside the EEA, appropriate safeguards are in place (EU Standard Contractual Clauses or adequacy decisions). See Cloudflare's GDPR page and Resend's DPA for details.
- Order data and License Key records: retained for the duration of your license plus 5 years after termination, or such longer period as required by law.
- Device MAC address: retained for the duration of your license and for 5 years thereafter, or such longer period as required by applicable law.
- Art. 15 — Access: request a copy of your personal data.
- Art. 16 — Rectification: correct inaccurate data.
- Art. 17 — Erasure: request deletion, subject to legal obligations.
- Art. 18 — Restriction: restrict processing in certain circumstances.
- Art. 20 — Portability: receive your data in a structured, machine-readable format.
- Art. 21 — Object: object to processing based on legitimate interests.
- Supervisory authority: Úrad na ochranu osobných údajov Slovenskej republiky, Hraničná 12, 820 07 Bratislava — dataprotection.gov.sk
To exercise any rights, contact just@getdars.com. The Seller will respond within 30 days.
The Seller implements appropriate technical and organisational measures to protect your personal data against unauthorised access, loss, or disclosure, including encrypted storage and restricted access controls.
getdars.com does not use analytics, advertising, or tracking cookies of any kind. The site uses only technically necessary cookies:
- Cloudflare security cookies (e.g.
__cf_bm) — set automatically by our hosting infrastructure (Cloudflare, Inc.) for bot management and security. These are strictly necessary for the secure operation of the site and are not used for tracking. - Cloudflare Turnstile — the checkout page uses Cloudflare's Turnstile human-verification challenge before payment. Turnstile may set a strictly-necessary cookie to run and remember the result of that challenge. It is a privacy-preserving CAPTCHA alternative and is not used for advertising or cross-site tracking.
- Installer access cookie (
dars_installer) — the installer at getdars.com/installer is restricted to license holders. After you enter a valid License Key, a strictly-necessary,HttpOnlysession cookie is set (expiring after about 12 hours) so the installer stays unlocked while you use it. It contains only a signed session token, not your License Key or any personal data, and is not used for tracking. - Paddle payment cookies — the main getdars.com page loads Paddle's checkout script (
paddle.js), which may set functional cookies necessary to operate the secure payment overlay. These cookies are set by Paddle.com Market Limited and are strictly necessary for processing purchases. Paddle's cookie and privacy practices are governed by Paddle's Privacy Policy.
All of the above are strictly necessary cookies (exempt from prior consent under the ePrivacy Directive and applicable national law); the site sets no analytics, advertising, or profiling cookies, and shares no cookies with third parties for advertising or profiling purposes.
The Companion App may require internet access to query third-party drone information databases. Such requests are made directly from your Android device. The Seller does not receive, log, or process any data relating to these requests. The Companion App does not include any analytics, advertising, or tracking functionality.
Changes to These Terms
General
© 2026 Šimon Slávik - fotozhora. All rights reserved.
D.A.R.S. Firmware v1 and D.A.R.S. Companion App are products of fotozhora.