Contraction Timer: Bumpy
Cycle, ovulation & due date
Only for iPhone
Free · In-App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
The calm pregnancy companion with the best free contraction timer and kick counter. Follow your weekly countdown, pack your hospital bag, and find the perfect baby name.
Bumpy is a calm, clutter-free pregnancy companion built around the one tool you will reach for most: a clean, reliable contraction timer. No ads getting in the way, no account to create, and everything you track stays private on your iPhone.
THE CONTRACTION TIMER IS ALWAYS FREE
When things get real, you should not be fighting a paywall. Bumpy's contraction timer is free, forever. Tap once when a contraction starts and again when it ends. Bumpy logs the length and the interval, shows your averages over the last hour, and gently surfaces when your pattern resembles the widely-shared 5-1-1 guideline, as general information.
ALSO FREE
- Kick counter with a simple count-to-ten session and history
- Due-date countdown with your current week and progress
CYCLE & FERTILITY MODE, FROM CYCLE TO BUMP
Not pregnant yet? Choose "Tracking my cycle" and Bumpy becomes a private period tracker. Log your period start and end and your flow, and see your predicted next period, fertile window and estimated ovulation day on a clean monthly calendar. Add symptoms, mood and notes for any day. Predictions use the average of your own logged cycle lengths (28 days until you have logged two cycles), with ovulation estimated 14 days before your next period, and the app explains how each estimate is made, with links to public health sources. When you become pregnant, switch modes in Settings and Bumpy can suggest a due date 280 days after your last period start. Period logging and the calendar are free.
PREMIUM ADDS THE FULL COMPANION
- Weekly guide: your baby's size and development, week by week
- Hospital bag checklist you can tick off
- 260+ baby names with meanings and origins, plus favorites
- Appointment log for checkups and scans
- Weight log with your trend at a glance
- Cycle insights: cycle-length history, period history and symptom patterns
PRIVATE BY DESIGN
No account. No ads. No tracking. Everything you enter is stored only on your device. We never see it and we never sell your data.
GENERAL INFORMATION, NOT MEDICAL ADVICE
Bumpy provides general information only and is not medical advice. Every pregnancy is different. Always contact your doctor or midwife with questions about labor, your health, or your baby.
FREE AND PREMIUM
The contraction timer, kick counter, due-date countdown, period logging and the cycle calendar are free with no limits. Premium unlocks the weekly guide, hospital bag checklist, baby names, the appointment and weight logs, and cycle insights.
SUBSCRIPTION
Bumpy Premium is available as a weekly subscription with a 3-day free trial, an annual subscription, or a one-time lifetime unlock. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current period. Manage or cancel subscriptions in your Apple ID Account Settings. Restore purchases from the app settings. The lifetime option is a one-time purchase and does not renew.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://www.appharbour.com/bumpy/privacy.html
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Bumpy now goes from cycle to bump. New Cycle & Fertility mode: log your periods and flow, and see your predicted next period, fertile window and estimated ovulation day on a clean monthly calendar. Add symptoms, mood and notes for any day. Premium adds cycle insights with your cycle-length history and symptom patterns. When you become pregnant, switch modes in Settings and Bumpy can suggest a due date from your last period. Everything stays on your iPhone.
The developer, Charles Dapaah-Siakwan, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Charles Dapaah-Siakwan
- Size
- 1.5 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 3 more
- English, French, German, Spanish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Lifetime Unlock 34,99 USD
- Weekly Premium 4,99 USD
- Annual Premium 22,99 USD
- Copyright
- © 2026 App Harbour ApS