How we make money

Someone pays for every app. Here is who pays for this one.

A subscription, and nothing else

Cycle Ally Plus is the only money this app makes. There are no ads, no sponsors, no paid placements, and nothing in the app is a recommendation somebody paid for.

Your log is not for sale

We don’t sell your data, and we don’t share it — not with advertisers, not with data brokers, not with researchers. There is no arrangement under which that could happen, because there is nobody to sell it to and nothing to sell: your log never leaves your iPhone unless you send it somewhere yourself.

No third-party code

No analytics libraries, no advertising kits, no crash reporters from other companies. Those are the usual way a free app quietly earns — and every one of them sees what you do in the app. This website carries none of them either: no analytics, no pixels, no fonts loaded from somewhere else. Opening this page makes no request to any other company.

No account

You don’t sign up, so there is no profile of you anywhere, and nothing to leak if we were ever broken into. We have no servers holding your entries.

The free part stays free

Everything you log, your calendar, your summary for a clinician, your backups and your export are free and stay free. Plus adds longer time spans, lab charts and comparisons — depth of history, never the door.

Plus is $4.99 a month or $39.99 a year, with the first 7 days free on the yearly plan. It is an auto-renewing subscription, billed by Apple, and you can cancel it at any time in Settings on your iPhone.