Terms of Service & End User License Agreement

1. Acceptance of Terms

These Terms of Service and End User License Agreement (“Terms”) constitute a binding legal agreement between you (“you” or “User”) and John Slevinsky (“Licensor,” “we,” or “us”) governing your download, installation, and use of the CycleThing mobile and desktop applications for iOS, iPadOS, and macOS, as well as the CycleThing website and associated documentation (collectively, the “Software” or “Service”).

By downloading, installing, accessing, or using CycleThing, you agree to be bound by these Terms and our Privacy Policy. If you do not agree to these Terms, do not install or use the Software.

2. Health, Medical & Physical Safety Disclaimer

• No Medical Advice: CycleThing is a fitness training and telemetry tool, not a medical device. Power zones, heart rate readings, calorie estimates, Training Stress Score (TSS), and Intensity Factor (IF) metrics are provided for informational and recreational training purposes only and are not medical advice, diagnosis, or treatment.
• Physical & Equipment Safety: You are solely responsible for ensuring that your bicycle, axle mount, smart trainer, power meter, and training environment are properly installed, secured, ventilated, and maintained in accordance with the hardware manufacturer’s instructions.
• Automatic Resistance Changes: When operating in ERG, Simulation (Slope), Resistance, or Road Feel modes, CycleThing transmits resistance commands to your smart trainer that may cause sudden or substantial changes in pedaling resistance. Stop pedaling immediately if you experience dizziness, faintness, chest pain, shortness of breath, or mechanical instability.

3. Scope of License

Subject to your compliance with these Terms, Licensor grants you a personal, limited, non-exclusive, non-transferable, revocable license to download, install, and use the Software on Apple-branded devices running iOS, iPadOS, or macOS that you own or control, as permitted by the Usage Rules set forth in the Apple Media Services Terms and Conditions.

You may not:

• Copy, redistribute, sell, rent, lease, lend, or sublicense the Software;
• Reverse engineer, decompile, disassemble, attempt to derive the source code of, modify, or create derivative works of the Software (except as and only to the extent any foregoing restriction is prohibited by applicable law); or
• Remove, obscure, or alter any copyright, trademark, or other proprietary rights notices affixed to or contained within the Software.

4. Hardware Compatibility & Third-Party Services

CycleThing communicates with compatible Bluetooth Low Energy cycling trainers, power meters, heart rate monitors, and cadence sensors, and optionally integrates with third-party platforms including Strava, TrainingPeaks, Apple Health, and Apple iCloud.

• We do not guarantee compatibility with every trainer model, firmware revision, or third-party API change.
• Your use of any third-party service (such as Strava or TrainingPeaks) is subject to that third party’s own terms of service and privacy policy. Licensor is not responsible for the availability, accuracy, or policies of third-party services.

5. User Content & Workout Files

You retain all ownership rights to the activity recordings you generate and the structured workout files you create or import into CycleThing. You are solely responsible for ensuring that you have the right to import and use any workout files you load into the Software.

6. Intellectual Property & Trademarks

The Software, including its code, visual design, graphics, and documentation, is the exclusive property of John Slevinsky and is protected by copyright laws and international treaties. Copyright © 2026 John Slevinsky. All rights reserved.

Third-Party Trademarks: Strava is a registered trademark of Strava, Inc. TrainingPeaks is a registered trademark of Peaksware, LLC. Bluetooth is a registered trademark of the Bluetooth SIG, Inc. Apple, iPhone, iPad, macOS, HealthKit, and iCloud are trademarks of Apple Inc. CycleThing is not affiliated with, endorsed by, or sponsored by any of the above companies.

7. Disclaimer of Warranties

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THE SOFTWARE IS PROVIDED “AS IS” AND “AS AVAILABLE,” WITH ALL FAULTS AND WITHOUT WARRANTY OF ANY KIND. LICENSOR HEREBY DISCLAIMS ALL WARRANTIES AND CONDITIONS WITH RESPECT TO THE SOFTWARE, EITHER EXPRESS, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES AND/OR CONDITIONS OF MERCHANTABILITY, OF SATISFACTORY QUALITY, OF FITNESS FOR A PARTICULAR PURPOSE, OF ACCURACY, OF QUIET ENJOYMENT, AND OF NONINFRINGEMENT OF THIRD-PARTY RIGHTS.

8. Limitation of Liability

TO THE EXTENT NOT PROHIBITED BY LAW, IN NO EVENT SHALL LICENSOR BE LIABLE FOR PERSONAL INJURY, PROPERTY DAMAGE, EQUIPMENT DAMAGE, OR ANY INCIDENTAL, SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES WHATSOEVER, INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF DATA, LOSS OF WORKOUT RECORDS, OR BUSINESS INTERRUPTION, ARISING OUT OF OR RELATED TO YOUR USE OF OR INABILITY TO USE THE SOFTWARE, HOWEVER CAUSED, REGARDLESS OF THE THEORY OF LIABILITY (CONTRACT, TORT, OR OTHERWISE) AND EVEN IF LICENSOR HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. IN NO EVENT SHALL LICENSOR’S TOTAL LIABILITY TO YOU FOR ALL DAMAGES EXCEED THE AMOUNT YOU PAID FOR THE SOFTWARE OR FIFTY U.S. DOLLARS ($50.00), WHICHEVER IS GREATER.

9. Apple App Store Additional Terms

When you download CycleThing from the Apple App Store, you acknowledge and agree that:

• These Terms are concluded between you and John Slevinsky only, and not with Apple Inc. (“Apple”). Licensor, not Apple, is solely responsible for the Software and the content thereof.
• Apple has no obligation whatsoever to furnish any maintenance and support services with respect to the Software.
• In the event of any failure of the Software to conform to any applicable warranty, you may notify Apple, and Apple will refund the purchase price (if any) for the Software to you; to the maximum extent permitted by applicable law, Apple will have no other warranty obligation whatsoever with respect to the Software.
• Apple and Apple’s subsidiaries are third-party beneficiaries of these Terms, and upon your acceptance of these Terms, Apple will have the right (and will be deemed to have accepted the right) to enforce these Terms against you as a third-party beneficiary thereof.

10. Contact Information

Any questions, complaints, or claims with respect to CycleThing should be directed to:

John Slevinsky
Website & Support: https://cyclething.app/support
Email: support@cyclething.app