Software that keeps your data on your device.
Opens App is a small studio building mobile apps that work offline, sign you into nothing, and hold your files and your notes on the phone in your hand rather than on a server in ours.



Opens Audio Player
Your audio, your files, your player.
A free player for the music, audiobooks and podcasts already on your phone — or downloaded from your own Google Drive. No ads, no subscription, no account.

Ivy Todos
Six tasks. In order. Every day.
A to-do app that runs the Ivy Lee Method: at the end of each day you rank tomorrow’s six tasks, then work them strictly in order. Local-only, with no account and no sync.
How these get built
Your data stays on the device
Your library, your tasks, your history: they live in a file on your phone. There is no server holding them, because there is no server — which is also why there is nothing for us to lose, sell, or hand over.
No accounts, ever
Nothing asks you to sign up, and nothing is gated behind signing in. The one sign-in that exists anywhere is optional, scoped to reading, and only if you ask Opens Audio Player to fetch files from your own Google Drive.
Honest about the exceptions
There is no analytics and no crash reporting in any app. Ivy Todos shows a single ad after you close a day, and both apps can send feedback if you choose to write some. Those are the exceptions, and each one is spelled out in the privacy policy rather than buried.
Get in touch
Bug reports, feature requests, or anything else. Email is the whole support system, and it reaches a person.
Send a message