Free period tracker for Android · Public beta
Your cycle, on your phone. Nowhere else.
Ebb tracks your period, estimates when the next one is due — honestly, as a range — and reminds you beforehand. There's no account and no server, and it doesn't even have permission to use the internet.
- Free, no ads
- No account
- No internet permission
- Phones and tablets
Simple to use, honest about what it knows
One tap when your period starts, one when it ends. Everything else is there when you want it and out of the way when you don't.
An estimate you can trust
Ebb learns your rhythm from your own history and shows the next period as a range, with how sure it is. Irregular cycles get a wider window, not false confidence.
Forgiving when life happens
Forgot to log? Add it on an earlier day or fill in past periods. Illness or a medication change threw one cycle off? Mark it as not counted and it won't skew the estimate.
Reminders, without the cloud
A heads-up a few days before your period is expected, scheduled on the phone itself. They arrive with no signal and in airplane mode.
Backups and new phones
Save your history to a file wherever you choose, or move it to a new phone by scanning a few QR codes — one phone shows, the other looks.
More than one person
Helping a child who's just starting? Track them too, switch with a tap, and hand their history over to their own phone when the time comes.
Nothing to sell you
No ads, no premium tier, no upsell. Ebb does one thing, and it's free.
Your data stays on your phone
The question “what do they do with my data?” has a boring answer: nothing, because it never reaches us.
No internet permission
Ebb is built without permission to use the internet, so Android itself stops it from sending anything anywhere. You can check the app's permission list yourself.
No account, no server
Everything you log lives in a database on your phone. It only goes somewhere else if you move it yourself — a backup file, or another phone.
Nothing watching
No analytics, advertising or tracking in the app, and it's excluded from Android's cloud backup. Delete your data in Settings and it's gone.
The only permissions Ebb asks for: notifications, for reminders; the camera, only while receiving history from another phone; and restarting reminders after your phone reboots.
Ebb 0.1.0 for Android
Released September 27, 2026 · Android 7.0 or newer
Download APK 67 MB- File
- ebb-0.1.0.apk
- SHA-256
7bb9cf913b916354dc5893a928f5a49949583b7152ef7c349a6384b477d365fe- Signed by
- SuperDaveLab
Installing
- Download the APK on your phone and open it.
- If asked, allow your browser or Files app to install unknown apps.
- If Play Protect says the developer is unknown, tap More details → Install anyway. Ebb is new, so Google hasn't seen it yet.
Updates install over the top and keep your history. Uninstalling erases it — use Back up to a file first if you want to keep it. Coming to F-Droid.
Found a problem? Mention the version shown at the bottom of Ebb's Settings when you report it.
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