LensDay Terms of Use

Last updated: August 12, 2026

1. Acceptance

By downloading, installing, or using LensDay ("the App"), you agree to these Terms of Use and to the Disclaimer and Privacy Policy, which are incorporated by reference. If you do not agree, do not use the App.

2. What the App is

The App is a personal schedule tracker. It counts the days since a date you entered, shows how many remain until a replacement interval you chose runs out, and can remind you on the day the interval ends.

The App does not provide medical, optometric, or health advice of any kind, and is not a medical device. The schedules it tracks are the schedules you enter, and your eye care professional's instructions take precedence over anything it shows. It promises no health outcome. See the Disclaimer for the full statement.

3. Licence

Subject to these Terms, you are granted a personal, limited, non-exclusive, non-transferable, revocable licence to use the App on devices you own or control, for your own non-commercial use.

You may not: copy, modify, or create derivative works of the App; reverse engineer, decompile, or disassemble it except to the extent that restriction is unenforceable under applicable law; rent, lease, lend, sell, sublicense, or distribute it; or remove any proprietary notices.

If you obtained the App from the Apple App Store, your licence is additionally subject to Apple's Licensed Application End User Licence Agreement, and to the extent of any conflict, the more restrictive terms govern your use.

4. Purchases and payment

The App is free to download. One replacement schedule, one reminder, and the standard widget are free, with no time limit. LensDay Pro — the additional capabilities described on the purchase screen, such as per-eye schedules, extra trackers, additional widget styles, full history, and insights — is offered as an auto-renewable subscription or a one-time lifetime purchase:

The following terms apply:

5. Content you enter

The dates, schedules, and optional lens details you enter remain yours. They are stored only on your devices and are never transmitted to the developer, so the developer neither receives, reviews, nor moderates them.

6. Intellectual property

The App, its name, icon, and design are owned by the developer and protected by intellectual property law.

The App is not affiliated with, endorsed by, or connected to any lens manufacturer, brand, optician, or retailer. All trademarks, service marks, and trade names are the property of their respective owners; any brand name you choose to record in the App is your own note, stored for your reference only.

7. Your responsibilities

You are responsible for what you enter, for keeping the App's schedule aligned with the one your eye care professional gave you, and for acting on your own replacement dates. The App's output is arithmetic on your input: a wrong entry produces wrong dates, counts, and insights.

Reminders are local notifications that the operating system may delay, suppress, or never deliver. You agree not to use the App as your only prompt to replace a lens, and not to use it in place of the advice or care of an eye care professional.

8. Disclaimer of warranties

THE APP IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. NO WARRANTY IS MADE THAT THE APP WILL BE UNINTERRUPTED OR ERROR-FREE, THAT ANY REMINDER OR NOTIFICATION WILL BE DELIVERED OR OCCUR AT ANY PARTICULAR TIME, THAT ANY DATE, COUNT, INSIGHT, OR FLAG THE APP DISPLAYS IS ACCURATE, COMPLETE, OR SUITABLE FOR YOU, OR THAT ANY DATA STORED ON YOUR DEVICE WILL BE PRESERVED.

Nothing the App, this site, or the developer says is a representation about your eyes, your lenses, or what is safe for you to wear.

9. Limitation of liability

TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, THE DEVELOPER SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR FOR ANY LOSS OF PROFITS, DATA, GOODWILL, TIME, OR EARNINGS, ARISING OUT OF OR RELATING TO THE APP.

TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, THIS APPLIES TO ANY CLAIM ARISING FROM A REMINDER THAT WAS LATE, SILENCED, OR NEVER DELIVERED; FROM ANY DATE, COUNT, INSIGHT, OR FLAG THE APP DISPLAYED; FROM LENSES WORN LONGER OR REPLACED SOONER THAN THEY SHOULD HAVE BEEN; FROM AN ORDER PLACED USING DETAILS YOU RECORDED IN THE APP; OR FROM ANY DECISION YOU MADE ABOUT YOUR EYES OR YOUR LENSES WHILE USING THE APP.

TO THE FULLEST EXTENT PERMITTED BY LAW, THE DEVELOPER'S TOTAL AGGREGATE LIABILITY ARISING OUT OF OR RELATING TO THE APP SHALL NOT EXCEED THE GREATER OF (A) THE AMOUNT YOU PAID FOR THE APP AND ITS IN-APP PURCHASES IN THE TWELVE MONTHS PRECEDING THE CLAIM, OR (B) USD $50.

Some jurisdictions do not allow certain exclusions or limitations, including of liability for death or personal injury caused by negligence, for fraud, or for gross negligence. In those jurisdictions these limits apply only so far as the law allows, and nothing here excludes liability that cannot lawfully be excluded.

10. Indemnity

To the extent permitted by law, you agree to indemnify and hold the developer harmless from any claim arising out of your misuse of the App, your breach of these Terms, or your reliance on the App in place of the instructions or care of an eye care professional.

11. Termination

This licence ends automatically if you breach these Terms. You may end it at any time by deleting the App.

12. Changes

These Terms may be updated. The current version is always posted at this URL with a "Last updated" date. Continuing to use the App after a change means you accept the updated Terms.

13. Severability

If any provision of these Terms is held unenforceable, it applies to the maximum extent permitted and the remaining provisions stay in full force. A delay in enforcing any provision is not a waiver of it.

14. Contact

Questions about these Terms: support@godevcode.com.