Terms of use

Last updated 9 August 2026

What you're buying

The free tier logs everything and keeps every log forever: periods, signals, symptoms, your shelf and cabinet, your own notes. Subscribing unlocks the parts built on top of that record: your skin and symptom maps across a full cycle, the pattern check, and the formatted doctor-visit report.

A subscription changes what the app shows you. It never changes what it says about you. Every screen still only describes your own logged patterns, subscribed or not.

Price, trial and renewal

The exact price for each plan, and whether an introductory free trial applies, are shown by Apple before you buy, on the purchase screen itself, because that is the one place the number is always current for your account and region. This document doesn't repeat it, so it can never say something Apple's own screen disagrees with.

Subscriptions renew automatically at the end of each period unless cancelled at least 24 hours before it ends. Your Apple Account is charged for renewal within that 24-hour window. This is Apple's standard subscription mechanism. Cyclink has no separate billing of its own.

Managing or cancelling

Manage, change or cancel a subscription any time in Settings → [your name] → Subscriptions on your device, or from Settings → Manage subscription inside the app, which opens the same place. Cancelling stops the next renewal; it does not refund the current period or touch anything you've logged.

The Restore button in Settings re-checks your Apple Account for a subscription you've already bought (on a new device, or after a reinstall) rather than starting a new one.

Not medical advice

Cyclink is a personal logging tool, not a medical device and not a source of medical advice. Every pattern it shows is a description of what you logged, carries a confidence label, and is never a diagnosis, a named condition, or a recommended treatment.

For anything you're concerned about, a clinician is the right next step. This app is a record you can bring to that conversation, not a substitute for it.

Acceptable use

Cyclink is for logging and reviewing your own patterns. Please don't use it to try to diagnose or treat yourself or anyone else, to misrepresent logged data as clinical findings, or to attempt to disrupt the app, the barcode lookup it uses, or Apple's services behind it.

The account and subscription are yours alone to use. There's no sign-in and no shared account to misuse in the first place.

Your data, your control

How your logs are stored, synced and deleted is covered in full in the Privacy Policy, reachable from the same Settings screen this document is. Export and delete are both free, take a couple of taps, and don't depend on whether you subscribe.

Changes to these terms

If what the subscription includes changes, this screen changes with it in the same update, and the date at the top moves. There is no version of this document that describes something the app doesn't do.

Questions

The support contact on Cyclink's App Store page reaches the developer directly.