Calm, private wellbeing apps

With age we flourish.

Senuna builds serene, private-by-design apps for your body and mind. Everything you log stays encrypted on your own device — no accounts, no cloud, no tracking.

Data stays on-device AES-256 encrypted No trackers
Senuna Cycle home screen
DiaryCBT home screen
The collection

Three apps, one quiet philosophy

Each app does one thing calmly and keeps what you share to yourself.

Private by design

Your health is nobody's business but yours.

We don't build our apps around your data — because we never see it. There are no accounts to create and nothing syncs to a server we control.

Encrypted on your phone

Your data is stored with AES-256 (SQLCipher), with keys held in the device keystore.

No tracking, no ads on your data

No analytics SDKs, no third-party trackers, no profiling of your health.

Yours to keep & erase

Export a backup any time, and permanently delete everything with one tap.

100%
On-device — data never leaves your phone
AES-256
Encryption at rest, keystore-backed keys
0
Analytics SDKs or third-party trackers
9
Languages across the range
Before we launch · Android

Help us test — and get early access

We're inviting a small group of early testers to try the apps on Google Play before they launch. It's free, it takes a minute, and your feedback genuinely shapes what we build.

Become a tester →