Privacy
Last updated November 1, 2026. CycleHelm is run by Maxed Labs Ltd. This is health data, so here is plainly what we keep, why, and how to take it with you or get rid of it.
The short version
- No ads, and no advertising trackers anywhere in the signed-in app.
- We don't sell your data, share it with advertisers or data brokers, or use it to train AI models.
- The calculators run in your browser. What you type into them isn't sent to us.
- Your account data is stored in the EU, in Germany.
- You can download all of it, or delete all of it permanently, from Settings at any time, on any plan.
What we keep, and why
- Your email and a password. To sign you in. The password is stored hashed; we can't read it.
- What you log. Period dates, ovulation test results, the symptoms you tick, notes you write, a due date and how it was worked out, appointments and their questions. Only to show you your dates, predictions, guide, visits and summary.
- Your settings. Whether you're tracking, trying or pregnant, your cycle length, your time zone, whether you're 35 or over if you chose to say, and your email preferences.
- Billing. If you subscribe, your plan and a Stripe customer reference. Your card details go to Stripe and never reach us.
- Partner links. A label you choose, what the link shows, and when it was last opened. We store only a scrambled form (a hash) of the link itself.
We don't ask for your name, address, phone number, date of birth or location, and we don't collect contacts or data from other apps.
Who sees it
You. Our staff don't look at your logs. A partner link shows the person you send it to only the dates you switched on; never your notes, symptoms or test results. We use a few services to run CycleHelm, each only for its job:
- Helm7: hosting, the database and sign-in, in Germany.
- Stripe: payments, if you subscribe.
- ThreadCamp: sending the emails you choose to get.
- Sentry: error reports. These are scrubbed: no request bodies, no form contents, no notes, no partner links.
- Google Analytics: on the public pages only (the home page, calculators and articles), with advertising features and Google signals switched off. It counts visits and which calculator was used; it never receives a date you entered or anything you logged. It is not loaded in the app.
We send email you asked for: sign-in and password emails, an address confirmation, and, on Pro if it's switched on, a weekly note or a heads-up before your fertile window. Subject lines never say pregnant, ovulation or fertile, because inboxes get shared and previewed on lock screens. Every one has a one-click off switch.
How long we keep it
For as long as you keep your account. Delete it from Settings and everything is removed from our database straight away. Copies can remain in encrypted backups for a limited time until they're overwritten. Stripe keeps its own payment records as the law requires.
Requests from the authorities
We disclose data only when the law requires it, we ask for the narrowest scope possible, and we tell you about the request unless we're legally barred from doing so. Because we hold so little, there is little to hand over, and anything you delete is gone.
Your rights
Whatever state or country you live in, you can see, download, correct and delete your data yourself from the app, and stop any email. If you'd like us to do any of that for you, or have a question about your data, email us. Washington, Nevada and Connecticut residents: we only use your consumer health data to provide the service you asked for, and we never sell it.
CycleHelm isn't a healthcare provider, so HIPAA doesn't apply to it; the FTC's Health Breach Notification Rule does, and if your data were ever exposed we would tell you.
Cookies
Signing in sets a cookie that keeps you signed in. The public pages may set Google Analytics cookies to count visits. There are no advertising cookies.
Age
CycleHelm is for adults, 18 and over.
Changes and contact
If this policy changes in a way that matters, we'll email you before it takes effect.
Questions: Email us