# Pemsi: Period & Cycle Tracker — Ovulation, fertility, AI Coach

> Ovulation, fertility, AI Coach (iPhone/iPad app by Andrii Kedrov.)

- Source: https://appshunter.io/ios/app/pemsi-period-and-cycle-tracker/id6775840181 (this page in markdown: same URL + `.md`)
- Developer: [Andrii Kedrov](https://appshunter.io/developer/1885369364)
- Category: Health & Fitness, Lifestyle
- Price: Free with in-app purchases
- Age rating: 12+
- Requires: iOS 17.0 · 16 MB
- Languages: American English, Arabic, Dutch, French (France), German (Germany), Hindi, Indonesian, Italian, Japanese, Korean and 10 more
- Released: 2026-06-10
- Data updated: 2026-08-03
- User reviews in markdown: https://appshunter.io/ios/app/pemsi-period-and-cycle-tracker/id6775840181/reviews.md

## What is Pemsi?

Pemsi is a calm, evidence-based period tracker and cycle calendar built around how you actually feel through the month — not just the days bleeding starts.

PERSONALISED PREDICTIONS
• Calibrated cycle predictions that learn from your history — a Bayesian blend of your real data with population baselines, not just "average ± a guess".
• Ovulation and fertility window detection that respects OPK tests, cervical mucus and BBT signals when you log them.
• 6-month forecast (Pemsi Pro) so you can plan trips, deadlines and life around your cycle.

SYMPTOM & MOOD JOURNAL
• 30+ tracked patterns: fatigue, cramps, mood, sleep, anxiety, focus, libido, cravings and more.
• 20-second daily check-in that remembers what helped past cycles.
• Apple Health sync (Pemsi Pro) — your data flows both ways, your way.

CALENDAR WITH LUNAR CONTEXT
• Monthly swipe navigation, predicted vs confirmed period days with soft pastel PMS / fertility / ovulation overlays.
• NEW: a daily moon-phase badge on every day — all 8 lunar phases, computed from astronomical formulas right on your device, no server calls.
• Smart planner that flags hard days before you schedule heavy work, so you can move things before they bite.

AI COACH (PEMSI PRO)
Ask why you feel tired today, what to eat, how to move — get warm, evidence-based answers keyed to your phase and your last 30 days of symptoms. No horoscopes, no preaching, just tailored guidance. Speaks English, Ukrainian and Russian.

WELLNESS LIBRARY
• 5 guided breath patterns (box, 4-7-8, coherent, energizing, belly) proven to lower stress within minutes.
• Daily AI Insight (Pemsi Pro): a one-line, evidence-based suggestion personalised to today.

PRIVACY FIRST
Your cycle data lives on your device by default. Optional end-to-end encrypted cloud sync — even we can't read your logs. No ads, no third-party analytics, no selling of any kind. Ever.

LINKS
Privacy Policy: https://pemsi.serenity.games/privacy
Support: https://pemsi.serenity.games/support
Terms of Service: https://pemsi.serenity.games/terms
Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Pemsi Pro · 1 Week | $0.99 | per 7 days |
| Pemsi Pro · 1 Month | $2.99 | per month |
| Pemsi Pro · 1 Year | $34.99 | per year |



## Version history (last 4 releases)

### 1.0.3 — 2026-08-02

The app reaches the server again.

• Fixed the main problem: sign-in, syncing and saving could fail to connect.
• Removed a freeze on the first launch.
• Several interface fixes.

### 1.0.2 — 2026-07-30

A tidier calendar.
• Months that span six weeks are no longer cut off — the weekday row and the last week stay fully visible
• Every month is the same height, so switching months no longer jumps
• Month titles are written consistently in every language

### 1.0.1 — 2026-07-19

First public release.
• Calibrated cycle predictions
• AI Coach (Pemsi Pro)
• Daily AI Insight
• Moon-phase calendar (all 8 phases, on-device astronomy)
• Apple Health sync
• 5 guided breath patterns

### 1.0 — 2026-06-10

No release notes.

## More apps by Andrii Kedrov

- [Ніжин onLine](https://appshunter.io/ios/app/online/id1612308019)
- [Leela Spiel • von Gonchar](https://appshunter.io/ios/app/leela-spiel-von-gonchar/id6760887498)
- [Gift Genius: Gift Ideas](https://appshunter.io/ios/app/gift-genius-gift-ideas/id6766418138)
- [Bloom: AI Journal & Mood](https://appshunter.io/ios/app/bloom-ai-journal-and-mood/id6769496144)
- [Quirkers: Habit Tracker](https://appshunter.io/ios/app/quirkers-habit-tracker/id6775763530)

All apps by Andrii Kedrov: https://appshunter.io/developer/1885369364

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-03.*