EviMoon vs TideBook
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
EviMoon
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EviMoon is a private-by-design menstrual cycle tracker that respects your data. No account required, no cloud storage, and absolutely no ads. Your health data belongs to you. That's why EviMoon works entirely offline. All your sensitive informationβcycle dates, symptoms, and notesβis stored locally on your device and encrypted. We cannot see your data, and we never sell it. Key Features: Private & Secure No login needed. Your data never leaves your phone unless you choose to export it. Lock the app with FaceID/TouchID for extra protection. Visual Cycle Tracking Beautiful, breathing gradient interface that changes with your cycle phases (Menstruation, Follicular, Ovulation, Luteal). Know your body at a glance. Smart Reminders Set discreet notifications for your period start, ovulation window, or contraceptive pills. Symptom & Mood Log Track how you feel daily. Monitor changes in mood, symptoms, and flow to better understand your body's rhythm. Zero Ads, Zero Spyware Enjoy a clean, calm experience without annoying pop-ups or hidden trackers. Download EviMoon today and take control of your cycle with complete peace of mind.
TideBook
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Most cycle apps for men show you the same textbook average. TideBook starts there β then learns from what actually happens in your relationship, and adjusts. One tap a day. Nothing leaves your phone. HOW IT WORKS β’ Enter the date her last period started β that's the whole setup β’ Each day, answer one question with one tap β’ TideBook blends the textbook curve with your couple's own pattern, and the forecast gets sharper every week WHAT YOU GET β’ Today's outlook at a glance, with the current phase explained in plain words β’ A fourteen-day forecast strip β’ The full cycle view: where she is in the month, and the best days ahead β’ A next-period estimate that adapts to her actual cycle length PRIVATE BY DESIGN Everything stays on your phone. No account, no cloud, no analytics, no data collection of any kind. TideBook is not a medical device and not a contraceptive method. Predictions are estimates, and cycles vary widely. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: TideBook at every 3 days against EviMoon's every 2 weeks. EviMoon's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.4). On price, ads and in-app purchases there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. EviMoon sells 2 in-app purchases, starting at $11.99 per 6 months and TideBook sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
EviMoon ships an update every 2 weeks, TideBook every 3 days. The most recent releases landed on October 9, 2026 and September 30, 2026 respectively.
| Parameter | EviMoon | TideBook |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks | Every 3 days β better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod β better | iPhone |
| Requires iOS | 13.0 β better | 16.4 |
| Further details β not scored | ||
| Size | 45 MB | 40 MB |
| Age rating | 17+ | 12+ |
| Developer | Islambek Abdykarim Uulu | Co Digit |
In-app purchases
EviMoon
- EviMoon 6-Month Premium$11.996 Months
- EviMoon Premium Yearly$22.991 Year
TideBook
- TideBook Pro Monthly$2.991 Month
- TideBook Pro Annual$19.991 Year









