One Today
No account
Open the app and write. There is no email, password or profile to create.
Private diary app
A private diary that stays on your phone.
No account, no sign-up, a PIN lock when you want one — and backups only to your own Google Drive, only when you choose.
4-digit PIN lock
Lock the app with a PIN and choose whether it locks again whenever you leave it.
Stored on your phone
Your entries and photos live in the app on your device — not on our servers.
Private by design, not by setting
Many diary apps sync everything to the cloud by default and ask you to trust their servers. One Today works the other way round: your diary is local first. Nothing leaves your phone unless you export a backup yourself.
A diary that’s easy to keep
Privacy only matters if you keep writing. One Today keeps each entry to one line about one good thing, with an optional photo — so writing takes less than a minute and your diary grows every day.
Safe backups on your terms
Because entries live on your phone, backups matter. From Settings you can Export to Google Drive (saved to your own Drive), Import from Google Drive on a new phone, or copy your backup data and keep it wherever you like.
Questions
Is there a diary app that doesn't need an account?
Yes. One Today needs no account or sign-up. You open it and start writing, and your entries are stored on your phone.
Can I lock my diary app with a PIN?
Yes. One Today has a 4-digit PIN lock, with an option to ask for the PIN every time you return to the app.
How do I back up a private diary without losing privacy?
One Today only backs up when you tap Export to Google Drive, and the file goes to your own Drive account. You can restore it on any phone with Import from Google Drive.
Start a diary that’s only yours.
One line. One good thing. It takes less than a minute.