One page a day
No forms, no required fields. Open it, write, save. Add a title and a mood if you like.
A diary for Android
One page
a day.
One line is enough, and so is a whole page. DiaryOnce lets you leave a trace of your day on simple paper, and what you write stays only on your phone.
By installing DiaryOnce, you accept the Privacy Policy. For ages 13 and up.
Why DiaryOnce
As simple as keeping a diary.
Only on your phone
Your entries are never sent to any server. No one reads, stores or shares them.
Locked with your phone's lock
The app opens with your phone's screen lock, fingerprint or face unlock. No extra password to remember.
Features
Like your notebook, in your pocket.
Screenshots
Every page on a different paper.
Six of the 14 themes: Sand & Clay, Seashell, Dried Rose, Lavender, Midnight Blue and Forest Floor at night.
App lock
Your diary is locked.
You hold the key.
DiaryOnce doesn't ask for a separate password. You open your diary with the same lock you use for your phone: PIN, pattern, fingerprint or face unlock.
- No second password to forget. When you change your phone's lock, there's nothing to do in the app.
- Asked every time you open it. If the app stays in the background for more than half a minute, it locks again.
- Your password stays with you. Your phone does the check; your fingerprint or PIN never reaches DiaryOnce.
- Turn it on or off with one tap. Settings > Security > App lock.
Free
The page is yours, and so is the pen.
DiaryOnce is completely free: no ads, no subscriptions, no in-app purchases. Themes, fonts, colors, sizes and list styles unlock as you write: a new option in each group every 5 days, plus a special option every 30 days. Skip 3 days in a row and they lock again; the writing habit itself is the key.
- Ad-freeAnd there's nothing to buy.
- 14 themesA new one every 5 days you write.
- AaEvery pen15 fonts, 18 ink colors and lists, as you write.
- Your own remindersPick the time and the days.
FAQ
What you might be wondering.
Is DiaryOnce available in English?
Yes. The app is available in English, German, French, Spanish, Dutch and Turkish, and it follows your phone's language; if your phone uses another language, it opens in English. This website is available in five languages.
Where are my entries stored?
Only on your phone. DiaryOnce has no server that holds your entries; no one reads what you write, and nothing is shared. The details are in the Privacy Policy.
What happens to my entries if I change phones?
If Android's automatic backup is on, your entries come back on your new phone. You can also export a backup file from Settings > Data and import it on the new phone.
How do I lock the app?
Turn on the app lock in Settings > Security. DiaryOnce doesn't ask for a separate password; it uses your phone's screen lock, fingerprint or face unlock. The lock can be turned on when your phone has a screen lock.
Can I edit a past day?
No, and that's on purpose: one page for every day, and what you wrote that day stays as it was. You can open and read past days in My Diaries, and delete them if you want. You can edit today's page all day long.
How do I sign in?
With your Google account. Your password never reaches DiaryOnce; Google handles the check. Only your name and email address are used for sign-in.
Is DiaryOnce free?
Yes, completely. There are no ads, no subscriptions and no in-app purchases. Every option unlocks as you write.
How do themes and fonts unlock?
By writing. At first the first option in each group is open; every 5 days you write, a new theme, font, color, size and list style unlock, and every 30 days a special option in each group. A day or two off doesn't break the count, but skip 3 days in a row and they lock again.
Will the reminders bother me?
You get a gentle reminder around noon and another at night, at a different time each day. If you've already written that day, it doesn't come. You can turn them off with one tap in Settings > Reminders. You can also set your own reminders and choose their time and days; on those days ours stay quiet.
How do I delete my account?
In the app, go to My Account > Delete account. Your account and the entries on your phone are permanently deleted. The steps, and what to do if you can't open the app, are on the Delete account page.
Today's page is blank.
Start with one line. Tomorrow, you'll remember how yesterday went.