Support

For LecturePad, PaperVault, ClearDraft, DriftSound and SubKeeper.

Contact: yasheng.sun@kaust.edu.sa. Please say which app and which iPhone model you are using. Replies usually within two working days.

Purchases and subscriptions

Restore a purchaseOpen the app › Settings › Restore purchases. This checks your Apple ID with the App Store; nothing is stored by us.
Cancel a subscriptioniPhone Settings › your name › Subscriptions › choose the app › Cancel. Cancelling keeps Pro until the end of the period already paid for.
Free trialEach subscription starts with a free week. Cancel before it ends and you are not charged. Apple sends a reminder before the trial converts.
RefundsRefunds are issued by Apple, not by us: reportaproblem.apple.com.

Frequently asked

Where is my data?On your device only. None of these apps has an account or a server. Deleting an app deletes its data, so back up with iCloud or Finder first if you care about it.
LecturePad says “No offline speech model”The app transcribes only on-device. Open iPhone Settings › General › Keyboard › Enable Dictation, then confirm the language's offline model has downloaded. This is not available in the iOS Simulator.
PaperVault found no text in a PDFScanned PDFs have no text layer; the app runs OCR on them, which takes longer and needs the document to be reasonably legible.
ClearDraft says repeated-word detection is offApple's part-of-speech model is not present on every device. The app detects this and switches to surface rules rather than guessing; the other six checks still run.
DriftSound stops when the screen locksIt should not. Check that Background App Refresh is not restricted for the app, and that no other app has taken over audio.
SubKeeper reminders do not arriveiPhone Settings › Notifications › SubKeeper must be allowed, and Renewal reminders must be on in the app's Settings tab. Reminders fire at the hour you chose there.

Privacy policies

LecturePad · PaperVault · ClearDraft · DriftSound · SubKeeper