Terms of Use

Last updated: 9 October 2026

1. Agreement

These terms cover your use of the TimeMark app for iPhone and Android, made by Lukasz Blachura, an independent developer in Poland ("I", "me").

• On iPhone (App Store), your use of TimeMark is governed by Apple's Licensed Application End User License Agreement (the standard App Store EULA), together with these terms. If they ever conflict, Apple's EULA takes precedence.
• On Android (Google Play), these terms are the licence agreement for TimeMark, and your purchase is also subject to the Google Play Terms of Service.

The TimeMark Privacy Policy applies on both. If you don't agree, please don't use the app.

2. Licence and permitted use

You may use TimeMark on devices you own or control, as allowed by the App Store's usage rules on iPhone or Google Play's on Android, for personal, educational, research or professional work. You agree not to:

• use TimeMark in a way that breaks the law or infringes someone else's rights, including recording people without the consent the law requires where you are;
• reverse engineer, decompile or try to extract its source code, except where the law allows it;
• resell, rent or redistribute the app itself.

Templates you create are yours, and you're free to share them with anyone.

3. TimeMark Pro and refunds

• Plans: TimeMark Pro is offered as Lifetime, a one-time non-consumable purchase that never renews, or as an auto-renewing Yearly or Weekly subscription. Every plan unlocks the same features.
• Price: shown in your local currency in the app before you buy, and charged by Apple to your Apple ID (iPhone) or by Google to your Google account (Android) when you confirm.
• Automatic renewal: a subscription renews automatically at the end of each period, at the price shown when you subscribed, until you cancel. On iPhone, turn off auto-renew at least 24 hours before the period ends; your Apple ID is charged for the renewal within the 24 hours before the period ends. On Android, Google Play charges at the start of each new period; cancel before then to avoid the next charge.
• Cancelling: on iPhone, in Settings, your name, then Subscriptions; on Android, in the Google Play app, your profile, Payments & subscriptions, then Subscriptions. On both, Settings, then Manage subscription, in TimeMark takes you there. Cancelling stops the next renewal; you keep Pro until the end of the period you've paid for.
• Lifetime while subscribed: buying Lifetime does not cancel an active subscription. Cancel the subscription yourself so you aren't charged again; the app reminds you if both are active.
• Restoring: Pro can be restored from Settings in the app on any iPhone signed in with the same Apple ID, or any Android device signed in to Google Play with the same Google account. A purchase on one store unlocks TimeMark on that platform only: an App Store purchase doesn't unlock the Android app, and a Google Play purchase doesn't unlock the iPhone app.
• Family sharing: not currently offered for TimeMark Pro (Apple Family Sharing or Google Play Family Library).
• Refunds: handled by the store you bought from, under its policies: Apple at reportaproblem.apple.com, or Google at Google Play's refund page. I can't issue refunds directly because I never receive your payment details.
• Free trial: new subscribers to the yearly plan get a 3-day free trial. When it ends, the yearly price is charged unless you cancel before the trial ends (on iPhone, at least 24 hours before). Apple allows one free trial per Apple ID, and Google Play one per Google account. Buying Lifetime during a trial doesn't cancel the trial's subscription; cancel it yourself if you no longer want it.
• No free tier: TimeMark needs an active trial, subscription or Lifetime purchase to record. If a subscription ends, your sessions stay on your device and come back as soon as you subscribe again or restore a purchase.
• What Pro includes: the features listed on the purchase screen at the time you buy.

4. Your data and backups

TimeMark has no account and stores everything on your device, as described in the Privacy Policy. That means I cannot see, recover or restore your sessions. You are responsible for keeping backups of anything you can't afford to lose: keep your device backup turned on, and use Export all sessions in Settings for important work.

5. Accuracy of timings

TimeMark records the moment your tap reaches the app and displays times to the hundredth of a second. Real-world accuracy also depends on your reaction time and your device. TimeMark is an observation and note-taking tool; it is not certified timing equipment, and shouldn't be the sole basis for official results, safety decisions or medical or veterinary judgements.

6. Intellectual property

The TimeMark name, icon, design and code belong to me. The sessions, notes and templates you create belong to you. I claim no rights to them, and never receive them.

7. Availability and changes

I may improve, change or remove features over time. If I ever stopped maintaining TimeMark, it would keep working on your device with your existing data, and the export tools would stay available so you can take your data with you.

8. Disclaimer

TimeMark is provided "as is" and "as available". I work hard to make it reliable, but I can't promise it will be error-free or uninterrupted. To the extent the law allows, I disclaim all implied warranties, including merchantability, fitness for a particular purpose and non-infringement.

9. Limitation of liability

To the extent the law allows, I am not liable for indirect, incidental or consequential losses, or for loss of data, arising from your use of TimeMark. My total liability is limited to the amount you paid for TimeMark Pro. Nothing here limits rights you have under consumer protection law that cannot be excluded.

10. Governing law

These terms are governed by the laws of Poland. If you are a consumer, you also keep the protection of the mandatory laws of the country where you live.

11. Contact

Questions about these terms: support@solooperatorstack.com. I may update these terms as the app changes; the current version is always on this page.

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