Comparison

ephira vs Trenpy

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

Head to head
About

ephira

This period tracker prioritizes your privacy by encrypting all data locally on your device. Log your cycle, symptoms, moods, and medications with confidence, knowing your information is secure and can be protected with biometrics or a password.

Highlights
  • Local data encryption
  • Track flow, symptoms, moods
  • Log medications and birth control
  • Biometric and password lock
  • Open source code available
  • Data deletion option
Features
Read full description

Stay aware of your cycle without sacrificing your privacy. Ephira is a secure period-tracker that keeps your data encrypted locally on your device. Track Your Health: Log menstrual flow, symptoms, moods, medications, birth control, and notes. Privacy First: Data is encrypted and never leaves your device. It can be locked behind biometrics (Face ID/Fingerprint) or a custom password, and can be deleted at any time. Open and Transparent: Ephira is open source under the MIT license, and you can review the code at any time on Github.

About

Trenpy

This app offers private cycle monitoring, birth control management, and fertility planning. It provides accurate period and ovulation tracking, daily health insights, and symptom prediction. Manage medications and supplements with a dedicated birth control mode and secure encrypted backups.

Highlights
  • Private cycle monitoring
  • Accurate period and ovulation prediction
  • Fertility window tracking
  • Symptom logging and prediction
  • Medication and supplement tracking
  • Dedicated birth control modes
  • Encrypted data backup
Features
Read full description

Trenpy is a privacy-first women’s health app designed for seamless cycle monitoring, birth control management, and fertility planning. Whether you need a reliable period tracker, a detailed menstrual calendar, or a precise ovulation tracker, Trenpy empowers you to manage your reproductive health securely and without ever creating an account, keeping your data strictly on your device. Manage Your Health Safely and Freely Smart Period Tracking Trenpy is optimized with advanced statistical models to analyze your cycle. This technology predicts your next period, flow days, and PMS phases with the highest accuracy. It is a scientific and reliable assistant that leaves no room for surprises. Ovulation & Pregnancy Tracking Ideal for those planning a pregnancy or closely monitoring their fertility window. Accurately calculate your ovulation days and effortlessly plan according to your body's natural rhythm. Daily Insights & Discovery Trenpy is more than just a calendar; it is a guiding assistant. Every day, it offers personalized, insightful content to keep you informed about your cycle and help you understand your body better. Smart Symptom Prediction As you listen to your body, Trenpy learns from you. By regularly logging your symptoms (like cramps, headaches, or mood swings), Trenpy analyzes your cycle patterns and gently anticipates potential symptoms before they occur. Comprehensive Medication & Supplement Tracker Not just a cycle calendar, but your holistic health manager. Easily log your painkillers, vitamins, or daily supplements, and track your remaining stock. Personalize your list with custom colors and icons for a fully tailored experience. Dedicated Birth Control Mode Trenpy adapts to your contraceptive method with a fully dedicated mode. Whether you're on the pill, using a Hormonal IUD, Copper IUD, or have had a Tubal Ligation, each method is fully supported. Hide ovulation, the fertility window, or shift your calendar to alert mode if you're not planning a pregnancy. Interactive Health Reports Generate modern, clear, and interactive reports about your cycle and health trends. Read your body's language through data. Sensitive Notification Management Trenpy thoughtfully considers your every moment. Toggle the exact notifications you need and disable the rest. Most importantly, hide the content of symptom predictions and medication alerts from your lock screen for total privacy. You are always in control. Encrypted Backup & Restore Safely back up your data with encryption. Easily restore your information at any time, even if you change devices. Our Privacy Philosophy: 100% In Your Control • No Account Required: You never need to share an email or phone number. • Data Stays on Device: All your data is stored encrypted solely on your own phone. • No Servers: We never upload or sell your data to cloud servers. • Seamless Experience: No disruptive pop-up ads. Just an elegant banner at the bottom of the screen that won't interrupt your flow. Who is Trenpy For? • Minimalists: Those who want a clean, clutter-free design that simply serves its purpose. • The Privacy-Conscious: Users who demand absolute confidentiality for their health data. Download Trenpy today; discover the power of a minimal experience, uncompromising trust, and accurate predictions! Your Cycle, Your Data, Your Rules. How It Works Trenpy is a server-free women's health and menstrual tracking app engineered for users who prioritize data privacy. To maximize user security, the app architecture stores all data on-device with encryption. It operates offline-first, powered by advanced statistical algorithms. Trenpy requires no user accounts and strictly collects no personal data. Note: Trenpy is a cycle tracking tool and assistant; it is not intended for medical diagnosis, treatment, or as a substitute for professional medical advice.

Screenshots

ephira4 screens
Trenpy4 screens

Verdict

The call

The clearest difference is ads: ephira at none against Trenpy's shown. ephira also leads on monetization model (free vs ad-supported). Trenpy's advantage is update cadence (every 3 weeks vs every 6 months). On price, rating, ratings volume 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.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for ephira against 5.0 for Trenpy. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

UpkeepUpdate frequency

ephira ships an update every 6 months, Trenpy every 3 weeks. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 6 level
ephira versus Trenpy: the parameters behind the verdict, then further details
ParameterephiraTrenpy
PriceFreeFree
Rating5.0 (3 ratings)5.0 (2 ratings)
Number of ratings3 — better2
Update frequencyEvery 6 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.1
Further details — not scored
Size34 MB55 MB
Age rating17+4+
DeveloperAlexander UlbrichEyup Can Esen

In-app purchases

None

ephira

No in-app purchases

None

Trenpy

No in-app purchases

Questions

Is ephira free?
ephira is free to download, with no in-app purchases.
Is Trenpy free?
Trenpy is free to download, with no in-app purchases.
Which has better reviews, ephira or Trenpy?
ephira and Trenpy are both rated 5.0 out of 5 on the App Store, from 3 and 2 ratings respectively.
Do ephira or Trenpy have ads?
Trenpy shows ads; ephira does not.
Which is updated more often, ephira or Trenpy?
ephira ships an update every 6 months, and Trenpy every 3 weeks. Most recently, ephira was updated on November 4, 2026 and Trenpy on October 30, 2026.

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