Terms of use

Effective date: 18 September 2026

1. The agreement

Tessera 168 (“the App”) is made and published by the individual named as the seller on the App's App Store product page (“we”, “us”, “our”). These Terms of Use are the agreement between you and us for your use of the App.

The agreement is between you and us only, not with Apple. Apple is not responsible for the App or its contents. By downloading or using the App you accept these terms; if you do not accept them, do not use the App, and delete it.

2. What the App is for

The App is a private record of your own week: a board of 168 squares, one for every hour, that you fill in yourself.

It is a personal log, nothing more. It is not medical, psychological, financial, employment or professional advice, and it is not a timekeeping record for anyone but you. What you choose to record, and what you decide on the strength of it, is yours to judge.

3. Your licence

We grant you a personal, non-exclusive, non-transferable, revocable licence to use the App on any Apple-branded device that you own or control, as permitted by the Usage Rules of the Apple Media Services Terms and Conditions — including sharing it with the members of your Family Sharing group where the Usage Rules allow it.

You may not: copy or redistribute the App; sell, rent or sublicense it; reverse-engineer, decompile or disassemble it, or attempt to derive its source code, except to the extent the law expressly permits despite this restriction; remove or alter any notice in it; or use it to break the law or to infringe anyone's rights.

The App, its name, its artwork and its code remain ours. Nothing here transfers any of that to you.

4. Your week is yours

Everything you enter in the App — the hours you fill in, your notes, your tasks, the purposes you invent — stays on your device and, if iCloud backup is on, in the private iCloud of your own Apple Account. It belongs to you. We never receive it and cannot see it. See the Privacy Policy for the detail.

You are responsible for what you record and for keeping a copy. Settings › Privacy › Export hands your complete data file to the iOS share sheet at any time. If you use Delete all data, your data is gone from the device and from your iCloud; we hold no copy and cannot restore it.

5. Tessera Pro, and paying for it

Tessera Pro is sold as an auto-renewable monthly or yearly subscription, or as a one-time lifetime purchase, all through Apple's In-App Purchase system only.

• Apple takes the payment and holds the billing relationship. We never receive your payment details or your Apple Account.
• A monthly or yearly subscription renews automatically at the end of each period unless you cancel at least 24 hours before it ends. Manage or cancel it in Settings › Apple Account › Subscriptions on your device.
• All three purchases are shareable with your Family Sharing group.
• Refunds are Apple's to give, at reportaproblem.apple.com.
• We may change what Pro costs. A change never alters a price you have already paid: a lifetime purchase stays bought, and a subscription price change reaches you only through Apple, with the notice and the choice to cancel that Apple requires.

6. What stays free

The full 168-hour week, the fourteen built-in purposes, written notes on any hour, sharing your week as an image and the iCloud backup are free, and we intend to keep them free. The App carries no advertising and no tracking, and we will not add either.

7. Changes to the App

We may add, change or remove features, and we may stop publishing the App altogether. If we ever stop, the copy already on your device keeps working for as long as your iPhone and its version of iOS will run it, and your data stays where it is — on your device, exportable.

8. Support

Support is ours to provide, not Apple's: Apple has no obligation whatsoever to furnish any maintenance or support services for the App. Write to ioniclabs.support@gmail.com. We are one person, so we cannot promise a response time, but we read everything.

9. No warranty

To the fullest extent the law allows, the App is provided “as is” and “as available”, without warranty of any kind — express or implied, including any implied warranty of merchantability, fitness for a particular purpose, or non-infringement. We do not warrant that the App will be uninterrupted or error-free, or that any defect will be corrected.

In the event of any failure of the App to conform to any warranty that does apply, you may notify Apple, and Apple will refund the purchase price of the App to you (where a purchase price was paid). To the maximum extent permitted by law, that is Apple's entire warranty obligation, and Apple has no other warranty obligation whatsoever with respect to the App.

Some jurisdictions do not allow the exclusion of implied warranties; where that is so, the exclusions above apply only as far as the law permits, and your mandatory consumer rights are unaffected.

10. Limitation of liability

To the fullest extent the law allows, we are not liable for indirect, incidental, special or consequential damages, nor for lost data, lost time or lost profit, arising out of your use of the App. Our total liability for any claim relating to the App is limited to what you actually paid us for it in the twelve months before the claim arose.

Nothing here limits liability that cannot be limited by law, including liability for death or personal injury caused by negligence, or for fraud.

11. Product and intellectual-property claims

We, not Apple, are responsible for addressing any claim by you or a third party relating to the App, including product-liability claims, any claim that the App fails to conform to a legal or regulatory requirement, and claims arising under consumer-protection or similar law.

If a third party claims that the App infringes their intellectual property, we, not Apple, are solely responsible for the investigation, defence, settlement and discharge of that claim.

12. Third-party terms

You must comply with any applicable third-party terms of service when using the App — in particular Apple's own terms for the App Store and for your Apple Account.

13. Apple's part in this

Apple and Apple's subsidiaries are third-party beneficiaries of this agreement, and upon your acceptance of it Apple has the right (and is deemed to have accepted the right) to enforce it against you as a third-party beneficiary.

14. Legal compliance and export

You represent that you are not located in a country subject to a U.S. Government embargo or designated as a “terrorist supporting” country, and that you are not listed on any U.S. Government list of prohibited or restricted parties. You agree to use the App only in ways the law where you are allows.

15. Ending it

You may end this agreement at any time by deleting the App. We may end your licence if you materially breach these terms. On ending, the licence stops; the data on your device is unaffected and remains yours to export or erase.

16. Governing law and disputes

These terms are governed by the laws of Vietnam, and the courts of Vietnam have jurisdiction, except where the mandatory law of your country of residence gives you a different forum or different rights as a consumer — those rights stand, and nothing here removes them.

17. Changes to these terms

We may update these terms as the App or the law changes. The effective date at the top will change with them, and the current version is always at this address. Continuing to use the App after a change means you accept the new terms; if you do not, delete the App.

18. Contact

Questions about these terms, or about the App: ioniclabs.support@gmail.com