Yixing Tianxia YXTX TECHNOLOGY

Support

We answer every message. Typical reply time: 1–2 business days.

Deephour is not released yet. It is in active development for iOS. If you are here from an App Store listing or a beta invite, the questions below cover what most people ask. Anything else, email hello@yxtx.tech.

Contact

Email hello@yxtx.tech for product questions, bug reports, business enquiries, or privacy requests. Please include your device model and iOS version if you are reporting a problem.

Frequently asked

What does Deephour do differently from a normal focus timer?

A normal timer tells you how long you focused. Deephour asks what you remember when the session ends, then scores it. The number you see is a retention rate, not a duration — the point is to find out whether the time did anything.

Does my study content get uploaded?

No. Topics, reflections, questions and answers are stored on your device. The single exception is generating recall questions: the topic name and optional reflection line are sent to our server to produce the questions, and are not retained afterwards. See the Privacy Policy for the full detail.

Does the app work without a network connection?

Yes. Timing, blocking, statistics and the review queue all work offline. If question generation cannot reach the server, the session still completes and an on-device fallback is offered.

Why does the app ask for Screen Time permission?

Blocking distracting apps during a session requires Apple's Screen Time (Family Controls) authorisation. The permission is used only to apply the block list you choose, and only while a session is running. You can use Deephour without granting it — the timer works, the blocking does not.

How do I cancel or get a refund for my subscription?

Subscriptions are billed by Apple or Google, so cancellations and refunds are handled by them:

  • Apple — Settings → your Apple Account → Subscriptions → Deephour → Cancel. For refunds, use reportaproblem.apple.com.
  • Google Play — Play Store → profile → Payments & subscriptions → Subscriptions → Deephour → Cancel.

We cannot cancel or refund on your behalf, but tell us if something went wrong.

How do I delete all my data?

Delete the app. Your study content lives only on your device, so removing the app removes the data. There is no server-side copy.

Will there be an Android version?

It is planned as a second phase after the iOS release. If you want to be told when it exists, email us and we will keep your address for that single purpose.

Business and press

For partnership, press or licensing enquiries, write to hello@yxtx.tech with the subject line "Business enquiry".