Support

Troubleshooting

The draw doesn't seem to fire when I flip the phone. Make sure the phone is held fully face-down and still — the draw needs about half a second of stillness in that position to register. If you flip too quickly, or the phone keeps moving when it should be still, it may not catch. Flip it back and try again.

Permissions

Vesper Tesserae doesn't request any permissions. No camera, no contacts, no notifications, no location — nothing to approve or deny. The sensors it reads to draw a concept don't require a permission prompt on iOS.

Purchases & restoring your unlock

Vesper Tesserae is free to try for 7 days, full corpus, nothing held back. Once the trial ends, an unlock screen appears directly on the main screen — a one-time $3.99 purchase, handled through Apple's App Store. No subscription, no recurring charge.

If you've already purchased the unlock — after reinstalling the app, or on a new device — tap Restore Purchases on that same screen to restore it without paying again.

Still stuck?

Email support@vespertesserae.com.