Zhenyi Tan And a Dinosaur

Launch: Ikura Cycle Tracker

Ikura is a cycle-tracking app that takes your privacy very seriously. Ikura means Roe in Japanese.

Ikura looks like a calendar app, and it’s intentional. It’s not pink and doesn’t use flowers or hearts in the UI, so you won’t feel uncomfortable using the app in a public place. There is no big header showing “next period in x days” to deter strangers from peeking at your screen.

You can import your data from the Health app. You can also export your data if you want to switch to another tracker app. Ikura doesn’t constantly sync data with the Health app in case some random “wellness” app snoops on your data.

Ikura doesn’t make any fancy cycle prediction based on the flow rate or symptoms. Partly because I know nothing about cycle prediction and partly because I think the fewer data saved, the better.

The app doesn’t mention the word “period” in the UI. But if you think the default “event” is too vague, you can change it in the Code Words setting.

(The default code word for fertility windows is the even weirder “derived events” because I suck at naming things, so please contact me if you have a better suggestion!)


Ikura Pricing

Ikura is free, with no in-app purchases, no ads, and no tracking. Get it in the App Store today.


Ikura Privacy Policy

Ikura does not collect, store, or transmit any personal information. You don’t need to create an account to use it. It also never connects to any servers, not even iCloud.

Ikura treats your data as if they’re passwords. The entire database is encrypted with SQLCipher. The encryption key is stored in the Keychain.

You can (and should) set a passcode to unlock the app.


Ikura Support

If you have any questions, email me or contact me on Twitter.