Free for the maths. Pro for someone keeping track.
The calculators, a private log and this cycle's window are free for good. Pro is for when you want it to learn, plan and remember for you.
Free
The calculators, and a private place to log.
$0
- Ovulation, due date, fertile window and conception calculators
- Log periods, ovulation tests, symptoms and notes
- This cycle's fertile window and next period
- Pregnancy week and baby's size, any week
- Export or delete everything, any time
Pro
Someone keeping track of what comes next.
$39a year
$3.25 a month, billed yearly
- Everything in Free
- Predictions learned from your own cycles, with honest ranges
- Your luteal phase learned from your ovulation tests
- The full weekly pregnancy guide, timed to your due date
- A weekly email, and a heads-up before your fertile window
- Appointment prep with questions for each visit
- A clinician-ready summary to print or save
- A private link and calendar feed for your partner
Cancel any time. Your data stays yours either way.
About paying
Why pay when free apps exist?
Free cycle apps are paid for somehow, usually with ads and data. CycleHelm has no ads and doesn't sell or share anything, and Pro does real work: it learns your pattern and shows honest ranges, plans your visits, prints a summary for your clinician and keeps a partner in the loop without making them download anything.
Are export and delete free?
Yes, on every plan, always. Your data is yours to take or remove whether you pay or not.
What happens if I cancel?
You keep Pro until the end of the period you've paid for. After that you're on Free: everything you logged stays, predictions go back to the simple method, and partner links pause until you come back or turn them off.
Is there a trial?
The free plan is the trial: use the calculators and log as long as you like, then go Pro when the extra is worth it to you.
Can I get a refund?
If something isn't right with a charge, email us and we'll sort it out with you.