TideMoon vs PeriodAI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TideMoon
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TideMoon —— A Premium & Elegant Menstrual Tracker Simplicity meets intelligence. TideMoon is a minimalist iOS application designed for the modern woman who values both exquisite aesthetics and absolute privacy. By combining high-end "Glassmorphism" design with precision tracking, we transform menstrual health management into a journey of visual and mental harmony. Key Features: Dynamic Tide Ring: A unique real-time visualization of your current cycle day and physiological phase. Privacy-First Design: 100% Local Storage. Your health records and cycle data stay exclusively on your device. No cloud servers, zero data leakage risks. Deep Cycle Insights: Unlock comprehensive analytics on cycle variance and fertility trends based on local biometric algorithms after just two records. Professional PDF Export: Generate clean, medical-grade PDF reports with one click—perfect for healthcare consultations or personal records. Secure Access: Fully integrated with FaceID / TouchID to ensure your most private data remains strictly confidential. Tactile Immersion: Experience fluid micro-animations and premium haptic feedback that make every interaction feel alive. Why TideMoon? No Accounts: Start using immediately without registry or login. Zero Tracking: No ads, no third-party trackers, no behavioral analysis. Offline Capable: All predictions and report generations are processed locally on your device. Questions or feedback? Contact us at: HeartLog@icloud.com
PeriodAI
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PeriodAI is a private period tracker, cycle calendar and ovulation tracker made to help you understand your body day by day. Track your period, menstrual cycle, ovulation, fertile window, PMS, symptoms, mood, weight, intimacy, birth control and pregnancy mode in one calm app. PeriodAI turns your daily logs into clear cycle insights, simple reminders and easy-to-read patterns for your next period, ovulation window and cycle phases. Use PeriodAI as your everyday menstruation calendar and wellness journal: - Period tracker and cycle calendar - Ovulation tracker and fertile window estimates - PMS, symptom and mood tracking - Cycle phases: menstrual, follicular, ovulation and luteal - Weight, intimacy and wellness logs - Birth control, pill and IUD support - Pregnancy mode - Daily Today view with quick logging - Cycle history, trends and recurring patterns - Private health journal experience - Partner sharing controls - Export, consent and account deletion controls - Premium insights for deeper cycle patterns Why PeriodAI? A cycle tracker should feel clear, private and easy to keep using. PeriodAI keeps the important details close: when your last period started, when your next period may arrive, how symptoms and mood change across your cycle, and which patterns are worth noticing over time. Privacy-first cycle tracking: Your period and health data are personal. PeriodAI is built around private health journaling, clear controls and respectful tracking, so you can log what matters without clutter. PeriodAI Premium: Unlock advanced cycle insights, unlimited history and deeper pattern tracking with a 7-day free trial. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in Apple ID Account Settings. Questions? hello@periodai.app Privacy: https://periodai.app/privacy Terms: https://periodai.app/terms PeriodAI is not a medical device and does not diagnose, treat or prevent disease. Period predictions, ovulation estimates and fertility windows are educational estimates only. For medical concerns, contraception decisions, pregnancy questions or urgent symptoms, consult a qualified healthcare professional.
Screenshots
Verdict
The clearest difference is in-app purchases: TideMoon at none against PeriodAI's 2. PeriodAI's advantage is iOS requirement (15.1 vs 17.6). On price, 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
Both are free to download. PeriodAI sells 2 in-app purchases, starting at $1.99 per month. TideMoon asks for nothing beyond the download.
| Parameter | TideMoon | PeriodAI |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 4 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 8 MB | 48 MB |
| Age rating | 4+ | 12+ |
| Developer | 向东 张 | amira abbas |
In-app purchases
TideMoon
No in-app purchases
PeriodAI
- Monthly Plan$1.991 Month
- Yearly Plan$12.991 Year









