Support
Last updated: 7 July 2026
The fastest way to reach us is email. Because OpaqueShare is run by a small team, we don't offer live chat — but we read every message and reply within one business day.
Contact
When you email, please include:
- The email address registered to your OpaqueShare account.
- The type of device you're using and the version of the app (Settings → About).
- A short description of what you were trying to do and what happened.
Common questions
I forgot my password
Tap "Forgot password?" on the sign-in screen. We'll send a reset link to your registered email. The link expires after 30 minutes for security.
My transfer expired before it was downloaded
Files that aren't downloaded within 7 days are deleted automatically. You'll need to send the file again. There's no way for us to recover expired transfers — the ciphertext is permanently removed from storage, and we never had the keys to decrypt it anyway.
I lost the link I generated
The URL fragment (the part after #) is the
decryption key. We never see it, so we can't recover it. Send
the file again.
My purchase didn't credit
In-app purchases are handled by Google Play. If a purchase succeeded but credits didn't appear:
- Force-close and reopen the app.
- In the app, go to Settings → Restore purchases. Your Play Store purchase history will be re-verified.
- If credits still don't appear after a few minutes, email us with your Google order ID (from your Play Store purchase history).
How do I cancel a subscription?
Cancel from your Google Play account: open Play Store → Account → Subscriptions → OpaqueShare → Cancel. Cancellation takes effect at the end of your current billing period; you keep access until then.
How do I delete my account?
See Account deletion.
Is my data really encrypted end-to-end?
Yes. Files are encrypted on your device before upload using libsodium's XChaCha20-Poly1305 authenticated encryption. Our servers store ciphertext only — the decryption key never leaves your device (or, for link-mode transfers, is embedded in the URL fragment we never see). See our Privacy Policy for the full picture.
Security disclosures
If you've found a security issue, please email contact@zihne.com with the subject line "Security disclosure" and a description of the issue. We take these seriously and will respond within 2 business days.