Comparison

Sympto vs Regelzeit

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

Head to head
About

Sympto

Features
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Sympto is a menstrual cycle journal for basal body temperature, cervical mucus, bleeding and personal notes. Keep your observations together and explore them on a clear cycle chart. No account required. LEARN BY DOING The interactive tour highlights real controls and guides you through recording temperature, adding an observation and opening your chart. Practise with separate sample data. Skip the tour whenever you like, or start it again in Settings. DAILY OBSERVATIONS • Record temperature, measurement time and disturbances. • Note mucus characteristics and sensations separately. • Add optional cervix observations, bleeding and intercourse entries. • Write notes in your own words. YOUR CYCLE CHART Switch between the mobile chart and the full cycle sheet. Review previous cycles and add your own markings. Set a reminder for your daily temperature measurement. YOUR DATA, YOUR COPY Your observations are stored on your device. Save your chart as a PDF to view or print. Save a data backup in a location you choose, then restore it on another phone. A backup is a separate file and does not update automatically. CSV export and JSON format details are available under Advanced options. MAKE IT YOURS Use Sympto in English, German, French or Polish. Choose your date format, 12/24-hour clock and °C or °F separately. Switch between light and dark themes. Sympto is a recording tool. It does not automatically interpret fertility or predict ovulation. Selecting an observation method saves a preference; it does not apply that method’s rules to your chart. Interpret observations yourself according to the method you have learned. The app does not replace medical advice or guidance from a qualified fertility awareness instructor.

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.

Screenshots

Sympto4 screens
Regelzeit4 screens

Verdict

The call

The clearest difference is iOS requirement: Sympto at 13.0 against Regelzeit's 17.0. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Sympto ships an update fortnightly, Regelzeit every 2 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 5 level
Sympto versus Regelzeit: the parameters behind the verdict, then further details
ParameterSymptoRegelzeit
PriceFreeFree
Update frequencyFortnightlyEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPod — betteriPhone
Requires iOS13.0 — better17.0
Further details — not scored
Size29 MB25 MB
Age rating4+12+
DeveloperJakub ZajaczkowskiEugen Hinz

In-app purchases

None

Sympto

No in-app purchases

None

Regelzeit

No in-app purchases

Questions

Is Sympto free?
Sympto is free to download, with no in-app purchases.
Is Regelzeit free?
Regelzeit is free to download, with no in-app purchases.
Do Sympto or Regelzeit have ads?
Neither Sympto nor Regelzeit shows ads.
Which is updated more often, Sympto or Regelzeit?
Sympto ships an update fortnightly, and Regelzeit every 2 weeks. Most recently, Sympto was updated on November 5, 2026 and Regelzeit on October 31, 2026.

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