Comparison

Regelzeit vs Mama Bloom

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Regelzeit

Features
Read full description

Regelzeit is your personal cycle companion, made in Germany. All your data stays on your iPhone: no account, no cloud, no tracking, no ads, no subscription. TODAY AT A GLANCE The cycle wheel shows your cycle day and phase: menstruation, follicular, ovulation or luteal. Your next period appears as an honest time window based on your own cycles, not as a falsely precise date. When your period starts, one tap is all it takes. LOG YOUR DAY IN SECONDS Bleeding, mood, energy, symptoms, pain, sleep and a note. If you like, also basal body temperature, cervical mucus, LH tests, skin and sexual activity. CALENDAR The month view shows bleeding days, your fertile window, phases and the forecast for the coming days. Tap any day to see your entries or add them later. OVULATION FROM YOUR OWN DATA If you log basal body temperature or LH tests, Regelzeit detects ovulation from your readings instead of the calendar alone, with a temperature chart. The fertile window and ovulation remain estimates: Regelzeit is not a contraceptive and does not replace medical support when you are trying to conceive. PMS RADAR AND PLANNER After two cycles, the PMS radar spots symptoms that keep coming back and flags them one to five days ahead. The planner suggests time windows for workouts, presentations or doctor visits that suit your phase, optionally alongside your calendar events (read only, on your device). RECIPES, TIPS AND KNOWLEDGE 201 recipes, each with a photo and an explanation of why it suits the phase. Plus 104 tips on exercise, nutrition, everyday life, skincare and sleep, 205 recommendations for every phase and background on hormones and phases. “When to see a doctor?” lists eight warning signs. ASK REGELZEIT Ask questions like “When is my next period due?” or “What helps with cramps?” The answers are worked out on your iPhone from the app’s knowledge and your own data, with no internet connection. WIDGETS AND SIRI Cycle day, phase, countdown and daily tip on your Home Screen and Lock Screen. On the Lock Screen, the values are marked as sensitive. Ask Siri “What phase am I in with Regelzeit?” or use the shortcuts. PARTNER VIEW WITH LOVE NOTES A separate view for your partner: phase, cycle day, period window and ideas, no entries, no readings. Getting back takes Face ID, Touch ID or your passcode. Love notes written there show up on your Today screen in the right phase. Everything stays on this device. PRIVATE BY DESIGN • All data stays on your iPhone: no server, no cloud, no account • No ads, no tracking, no analytics, no third-party SDKs • Try it: turn on airplane mode and Regelzeit keeps working • Encrypted with iOS file protection: after a restart, readable only once you have unlocked your iPhone. Exports can only be read while your iPhone is unlocked • The database is left out of iCloud and computer backups, use the export to keep a copy • App lock with Face ID, Touch ID or passcode, and the content stays hidden in the app switcher • Export as JSON and CSV, “Delete all data” and withdrawal of consent at any time in the app • Age 16 and up, GDPR consent, privacy policy and legal notice in the app MORE FEATURES • A reminder two days before your period and a daily journal reminder at a time you choose • Using hormonal contraception? Regelzeit hides fertility and ovulation and explains why • VoiceOver, Dynamic Type, tested contrast and reduced motion on request • English and German, including widgets and Siri Important: Regelzeit is not a medical device and does not replace medical advice. Predictions, the fertile window and ovulation are estimates. Regelzeit is not suitable for contraception. If you have symptoms or questions, please see a doctor.

About

Mama Bloom

This private cycle journal helps you track your period, symptoms, and overall well-being. It offers honest forecasts with a range, not a precise date, and provides insights and educational content. Privacy is a core feature, with data protected locally on your device.

Highlights
  • Private cycle journaling
  • Honest period forecasts (range-based)
  • Log flow, pain, sleep, mood, energy, symptoms
  • Cycle insights and evidence
  • Learn library with sources
  • Privacy-focused architecture
  • Optional Face ID lock and iCloud backup
Features
Read full description

Mama Bloom is a private cycle journal. It keeps your record on your iPhone — there is no account, no server, no ads and no tracking — and it tells you the truth about forecasts: a period is predicted as an honest range, never a fake-precise date. Log flow, pain, sleep, mood, energy and symptoms in seconds. The living record organizes every cycle you keep; Insights show the evidence behind every statement, so you can check the app's work; the Learn library explains cycles calmly, with visible sources and clear boundaries. Privacy, by architecture: the record is protected by iOS Data Protection, the optional widgets are discreet by default, the app can lock behind Face ID, exports leave out intimate categories unless you choose otherwise, and an optional sealed backup lives in your own iCloud, encrypted on your device with a key Mama Bloom never has. One action deletes everything, including the backup. The optional Private Edition subscription adds cycle-to-cycle comparison, forecast memory and guided visual editions. Payment is handled by the App Store; prices are shown before you confirm. Mama Bloom is a wellness journal: a record for reflection, not a medical decision and not contraception. It shows no fertile-window or ovulation estimates, and forecasts can be wrong — when a health decision matters, talk to a professional. Privacy Policy: https://mamabloom.app/mamabloomcycle/privacy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Regelzeit4 screens
Mama Bloom4 screens

Verdict

The call

The clearest difference is in-app purchases: Regelzeit at none against Mama Bloom's 2. On price, update cadence, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Mama Bloom sells 2 in-app purchases, starting at $4.99 per month. Regelzeit asks for nothing beyond the download.

UpkeepUpdate frequency

Regelzeit ships an update every 2 weeks, Mama Bloom weekly. The most recent releases landed on October 28, 2026 and October 19, 2026 respectively.

Scorecard1 real difference · 8 level
Regelzeit versus Mama Bloom: the parameters behind the verdict, then further details
ParameterRegelzeitMama Bloom
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 2 weeksWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhoneiPhone, Apple Watch — better
Requires iOS17.017.0
Further details — not scored
Size25 MB77 MB
Age rating12+12+
DeveloperEugen HinzMama Bloom UG

In-app purchases

None

Regelzeit

No in-app purchases

2 purchases

Mama Bloom

Subscriptions2
  • Private Edition Monthly$4.991 Month
  • Private Edition Yearly14 Days trial$39.991 Year

Questions

Is Regelzeit free?
Regelzeit is free to download, with no in-app purchases.
Is Mama Bloom free?
Mama Bloom is free to download, with in-app purchases available.
Do Regelzeit or Mama Bloom have ads?
Neither Regelzeit nor Mama Bloom shows ads.
Which is updated more often, Regelzeit or Mama Bloom?
Regelzeit ships an update every 2 weeks, and Mama Bloom weekly. Most recently, Regelzeit was updated on October 28, 2026 and Mama Bloom on October 19, 2026.

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