Terms of Service
Effective date: April 2, 2026 · Last updated: April 2, 2026
These Terms of Service ("Terms") govern your use of Rulr: Spirit Level & AR Ruler ("Rulr," "the App"), developed by Anton (Batumi, Georgia). By using Rulr, you agree to these Terms and our Privacy Policy.
1. Eligibility
- Rulr is rated 4+ and suitable for all ages
- No age restriction is required as the App collects no personal information
- Minors should use the App under parental guidance where appropriate
2. Description of Service
Rulr is a measurement utility application that provides three tools:
- AR Ruler: Augmented reality distance, height, and area measurement using your device camera and LiDAR (where available)
- Screen Ruler: On-screen ruler for measuring physical objects placed on the display
- Spirit Level: Digital bubble level using device motion sensors with 0.1° precision
Accuracy Disclaimer: Rulr provides measurements for general reference purposes. Measurement accuracy depends on device hardware, environmental conditions, surface quality, and calibration. AR measurements are approximate (±1-3 cm in typical conditions). Do not rely on Rulr for safety-critical, structural, medical, or legal measurements. Always use certified professional measuring instruments when precision is required.
3. Subscriptions and Payments
3.1 Free Features
Screen Ruler is free with no limitations. AR Ruler provides 2 free measurements per day. Spirit Level requires Pro.
3.2 Rulr Pro Subscription
- Weekly: $2.99 per week (with 3-day free trial)
- Annual: $29.99 per year
Prices may vary by region and are displayed in your local currency in the App.
3.3 Billing and Renewal
- Subscriptions are processed through Apple's App Store and billed to your Apple ID
- Subscriptions auto-renew unless cancelled at least 24 hours before the current period ends
- Your account will be charged for renewal within 24 hours prior to the end of the current period
- Free trial: if offered, any unused portion of a free trial is forfeited when you purchase a subscription
3.4 Cancellation
- You may cancel at any time through your Apple ID settings (Settings > Apple ID > Subscriptions)
- Cancellation takes effect at the end of the current billing period — you retain access until then
- We cannot process cancellations or refunds directly — all billing is managed by Apple
3.5 Refunds
Refund requests must be submitted to Apple per their refund policy. We have no ability to issue refunds as billing is managed entirely by Apple.
4. Acceptable Use
You agree not to:
- Reverse engineer, decompile, or disassemble the App
- Use the App for any unlawful purpose
- Attempt to bypass subscription restrictions or modify the App
- Redistribute, sublicense, or commercially exploit the App
5. Intellectual Property
- Rulr, its design, code, and branding are owned by the developer (Anton)
- Measurements and photos you create using the App belong to you
- Apple, ARKit, RealityKit, CoreMotion, and LiDAR are trademarks of Apple Inc.
6. Camera and Sensor Permissions
- Rulr requests camera access for AR measurement functionality only
- Rulr requests motion sensor access for the spirit level functionality
- These permissions are required for core features but can be revoked at any time in iOS Settings
- No images, video, or sensor data is stored, transmitted, or shared — see our Privacy Policy
7. Limitation of Liability
Important: Rulr is provided "as is" without warranties of any kind. Measurements are approximate and should not be used for safety-critical applications.
- The App is provided on an "as is" and "as available" basis
- We do not warrant that measurements will be accurate, complete, or suitable for any particular purpose
- We are not liable for any damages arising from reliance on measurements provided by the App, including but not limited to:
- Property damage from incorrect measurements
- Personal injury from relying on level readings for safety-critical tasks
- Financial loss from inaccurate area or distance calculations
- To the maximum extent permitted by applicable law, our total liability shall not exceed the amount you paid for the App in the 12 months preceding the claim
8. Indemnification
You agree to indemnify and hold harmless the developer from any claims, damages, or expenses arising from your use of the App, including reliance on measurements for professional, construction, or safety purposes.
9. Governing Law
- These Terms are governed by the laws of Georgia
- For EU consumers: mandatory consumer protection laws of your country of residence apply
- Nothing in these Terms limits your statutory rights under applicable consumer protection legislation
10. Apple-Specific Terms
These Terms are between you and Anton (the developer), not Apple Inc. However:
- Apple has no obligation to provide maintenance or support for Rulr
- In the event of a failure to conform to any applicable warranty, you may notify Apple for a refund of the purchase price (if any); Apple has no other warranty obligation
- Apple is not responsible for addressing any claims relating to Rulr, including product liability, legal compliance, or intellectual property
- Apple and its subsidiaries are third-party beneficiaries of these Terms and may enforce them against you
11. Changes to These Terms
We may update these Terms from time to time. Material changes will be communicated through an updated "Last updated" date. Continued use of the App after changes constitutes acceptance of the revised Terms.
12. Contact Us
For questions about these Terms:
© 2026 Anton. All rights reserved.