💬 Support & Contact

KACHA — Encrypted Secret Vault for Notes & Photos

日本語 English

Thank you for using KACHA. For help with usage, restoring purchases, or reporting issues, please use the guide and contact information below.

Frequently Asked Questions (FAQ)

🔐 Getting Started

Q. What should I do first?

A. Launch the app and set your passcode, then set up unlocking with your NFC tag (or device authentication). You can then save secret notes and photos, all encrypted locally on your device with AES-GCM.

Q. I forgot my passcode.

A. By design, no one (including the developer) can recover or reset your passcode. If you lose it, your encrypted data cannot be unlocked. Please consider using a Decoy Vault fake passcode as part of your setup.

Q. What is the Decoy Vault?

A. If someone forces you to unlock the app, entering a fake passcode opens a harmless "Decoy Vault". Your real secrets stay hidden behind your real passcode.

💳 Purchases & Restore

Q. How much does KACHA Pro cost?

A. KACHA Pro is a one-time (Lifetime) purchase. Pay once and enjoy unlimited storage forever. Monthly and yearly subscriptions are optional.

Q. How do I restore my purchase on a new device?

A. Sign in with the same Apple ID used for the purchase, then tap "Restore Purchases" on the paywall screen.

Q. I purchased KACHA Pro but it is not unlocked.

A. First try "Restore Purchases". If it still does not work, please contact us below with a screenshot of your purchase history in the App Store.

📱 Troubleshooting

Q. The app crashes.

A. Please update iOS and restart the app. If it keeps crashing, contact us with reproduction steps and we will investigate promptly.

Contact

For feedback, feature requests, or bug reports, please email us (we usually reply within 2–3 business days).

📩 KACHA Support

kichiemond@gmail.com