Qinghe Voice Calculator · Support & Help

Contact: dairu@qq.com

FAQ

1. Voice input isn't responding

Check Settings → Qinghe Voice Calculator → Microphone / Speech Recognition and make sure both are allowed;
Make sure no other app is using the microphone;
If you denied permission earlier, re-enable it in system Settings and try again;
An internet connection is required for the first transcription.

2. It says "You've used all voice calculations this month"

Free users get 10 voice calculations per calendar month, counted only when an equation is successfully recognized. Subscribe (¥6/month) or get the Lifetime Membership (¥9.9) for unlimited voice input; keyboard calculation is always unlimited. The counter resets on the 1st of each month.

3. How do I cancel my subscription?

Subscriptions are managed by Apple: Settings → your Apple ID → Subscriptions → Qinghe Voice Calculator → Cancel. You keep access until the end of the current period.

4. I switched phones — how do I restore my purchase?

Open the membership page and tap Restore Purchases while signed in with the same Apple ID used for the purchase.

5. Exchange rates look wrong / won't refresh

Rates come from public third-party endpoints and may be delayed. Offline, the app uses the last cached rate (valid for 24 hours) and shows a notice. For actual transactions, always refer to your bank's rates.

6. A calculation looks wrong

Please email the expression and the expected result to dairu@qq.com and we'll look into it. You can copy expressions from the History screen.

7. How do I delete my data?

History: delete individual entries or clear all on the History screen. Everything else: uninstalling the app removes it with the sandbox. We never store your audio.

Policies

Feedback

We welcome feature requests and bug reports at dairu@qq.com.