Memento

Memento is a daily companion app that helps families stay connected and entrust what matters across time. Built on end-to-end encryption — even Memento can't see your data.

[Core Features]

🌿 Daily Life Pulse — 5 seconds a day

Tap "I'm OK today" once a day. If you miss several days in a row, your trusted family members are notified. Any single trustee can cancel a false alarm with one tap.

🔐 End-to-End Encrypted Vault

Letters, family records, photos, videos — all encrypted client-side with AES-256-GCM before upload. Each piece is wrapped with each family member's public key. Memento

servers only ever see ciphertext.

🔑 Family PIN

Set a 6-digit PIN only you know. Your private key is derived through 600,000 PBKDF2 iterations and AES-256-GCM wrapped before reaching the cloud. Switch devices or reinstall

— your PIN brings it back. We hold no backdoor.

👨‍👩‍👧 Family Circle (1-6 trusted contacts)

Invite the family members you trust most. Voting goes through server-side atomic transactions with email verification — no frontend bypass.

🐼 Kin Companion Garden

Tuantuan, Bengbeng, Afu, Xiaolu — 4 small animals × 3 forms × 30 levels. Daily check-ins earn experience; family members exchange reactions.

🎙️ Personal Voice Memos

[Subscription Plans]

* Basic: Free

* Pro: $9.99/month or $89.99/year

* Family: $19.99/month or $179.99/year (6-person sharing)

7-day free trial. Cancel anytime in Play Store settings.