# RhythmX: Period Tracker — Cycle Insights, Kept On-Device

> Private, open-source menstrual cycle tracker for women. (iPhone/iPad app by ShapeHaven Innovations LLC.)

- Source: https://appshunter.io/ios/app/rhythmx-period-tracker/id6740507389 (this page in markdown: same URL + `.md`)
- Developer: [ShapeHaven Innovations LLC](https://appshunter.io/developer/1747127977)
- Category: Health & Fitness, Lifestyle
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 12+
- Requires: iOS 18.0 · 2 MB
- Languages: American English
- Released: 2025-01-19
- Data updated: 2026-10-21
- Monetization: free

## What is RhythmX?

RhythmX: Your Cycle, Your Rules

Take control of your cycle with RhythmX, the menstrual tracker for people who value privacy and simplicity. Built by female engineers who know your body's data is yours, it gives you what you need to understand your cycle without the invasive data collection found in other trackers.

Learn each phase in a straightforward way, with no fluff and no gimmicks. Whether you're tracking symptoms, moods, or ovulation, RhythmX helps you build a log that works for you.

FEATURES THAT PUT YOU IN CONTROL

• Insights: See your current phase at a glance, your average cycle and period length, and an estimate of your next period. Charts show phase timing, your tags, and cervical mucus patterns over time.

• Phase Calendar: A month view tinted by phase, with a Today card and predicted period days. Tap any day to add or review tags and notes.

• Custom Tags: Track what matters to you. Log symptoms, moods, energy, cravings, exercise, medication, and more, by phase, and edit or remove them any time.

• Learn About Your Phases: Understand the science behind the menstrual, follicular, ovulation, and luteal phases, in plain language.

• Past Cycles: Archive finished cycles, search your tags, and spot patterns or reflect on how far you've come.

• Reminders: Optional notifications the day before and the day of your next predicted period. They are scheduled on your device and need no account.

• Share on Your Terms: Export selected phases as a calendar (.ics) file, only when you choose to.

• Light and Dark Mode: A calm blush palette in light, deep plum in dark, with a moon icon for each phase.

• Accessible by Design: Dynamic Type up to accessibility sizes, VoiceOver labels, and Reduce Motion support.

NO DATA COLLECTION, NO COMPROMISES

Other apps profit from your most personal information. RhythmX collects nothing. What you log stays on your device. No account, no ads, no analytics, no tracking, and no network access.

OPEN SOURCE

RhythmX is open source. Contribute to its growth, or read the code to verify how your data is handled. Transparency is not optional.

FOR WOMEN, BY WOMEN

Designed by a team of female engineers who know what a menstrual tracker should do: protect your privacy, stay simple, and put you in charge.

IMPORTANT

RhythmX requires iOS 18 or later. Predictions are estimates based on your logged cycles. RhythmX is a tracking tool, not medical advice. Talk to a healthcare professional about health concerns.

Because your cycle isn't just data. It's your life.

## Key features

- Educational cycle phase insights
- Customizable symptom and mood tracking
- Editable calendar views
- Data archiving and pattern review
- Tag search for insights
- Open-source code

## Is RhythmX safe?

Not enough ratings yet to assess RhythmX.

## Is RhythmX legit?

RhythmX: Period Tracker appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for RhythmX is 78 out of 100 points across 7 verification signals from App Store and developer data.


## Frequently asked questions about RhythmX

### What is Rhythm(x)?

Rhythm(x) is a menstrual cycle tracking application designed with a strong emphasis on user privacy and simplicity. It provides tools to understand your cycle, track symptoms, and manage your data locally on your device.

### Does Rhythm(x) collect my personal data?

No, Rhythm(x) collects zero data. All logged information stays on your device, ensuring complete privacy. The app explicitly states it has no creepy analytics or targeted ads.

### Is Rhythm(x) free to use?

Yes, Rhythm(x) is available for free. The app does not have any in-app purchases or subscription fees, and it is also ad-free.

### What devices is Rhythm(x) compatible with?

Rhythm(x) requires iOS 18 or later and is currently supported on iPhone. It is recommended to ensure your device is updated to the latest iOS version for the best experience.

### How does Rhythm(x) compare to other period trackers?

Rhythm(x) differentiates itself by prioritizing privacy and avoiding invasive data collection, unlike some other trackers that may profit from user information. It is also open-source, offering transparency.

### When was Rhythm(x) last updated?

The latest version of Rhythm(x) is 1.8, which was last updated on May 3, 2026. The app was initially released on January 19, 2025.

### What are the key features of Rhythm(x)?

Key features include educational insights into menstrual cycle phases, custom tags for personalized tracking, editable calendar views, data archiving for pattern recognition, and the ability to search your custom tags.

### Is Rhythm(x) suitable for all ages?

Rhythm(x) has an age rating of 4+, indicating it is suitable for a wide range of users. Its focus on menstrual tracking makes it most relevant for individuals who menstruate.

## Version history (last 5 releases)

### 1.9.1 — 2026-10-14

What's New (v1.9.1)

- New Home Screen and Lock Screen widget shows your current cycle phase and what's coming next.
- Fertile window now appears on the calendar, day panel, and Insights.
- Basal body temperature is now a trackable tag.
- Phase guides now include more detail.
- Widget layouts are cleaner and easier to read.
- Smaller fixes and performance improvements.

### 1.9 — 2026-10-11

What's New in 1.9
• Fresh new look: a redesigned app in blush and plum, with light and dark modes.
• Insights: see your current phase, average cycle and period length, next-period estimate, and charts for phase timing, tags, and cervical mucus.
• Reminders: optional notifications the day before and the day of your predicted period.
• Share: export selected phases as a calendar (.ics) file, only when you choose to.
• Phase moons: each phase now has its own moon. Menstrual is the full moon, ovulation is the new moon, and they glow gently as you move through your cycle.
• Animated launch: a short welcome as the waves drift and the moons light up.
• Smarter tag suggestions: "Mood Swings" and "Irritable" now save under Mood.
• Accessibility: Dynamic Type, VoiceOver, and Reduce Motion support throughout.

Your data still never leaves your device.

### 1.8 — 2026-05-03

Added privacy-oriented menstrual analytics for clearer cycle insights.

Introduced cycle sharing so you can share your cycle with loved ones

### 1.7 — 2025-04-21

Bug Fix- Remove @preconcurrency.

### 1.6 — 2025-03-23

Bug Fix: Improve archive tag editing.

## Apps similar to RhythmX

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [VitalOS Cycle](https://appshunter.io/ios/app/vitalos-cycle/id6756639168) | — | Free | Health & Fitness |
| [EveLock](https://appshunter.io/ios/app/evelock/id6753711566) | — | Free | Health & Fitness |
| [The Women's Healing App](https://appshunter.io/ios/app/the-womens-healing-app/id6777842967) | — | Free | Health & Fitness |
| [Lune Line Cycle Tracker](https://appshunter.io/ios/app/lune-line-cycle-tracker/id6737253593) | 5.0 (1) | Free | Health & Fitness |
| [Ovulation Estimator](https://appshunter.io/ios/app/ovulation-estimator/id529437218) | 5.0 (1) | Free | Health & Fitness |
| [Chondo Women's Health Tracker](https://appshunter.io/ios/app/chondo-womens-health-tracker/id6446078777) | 5.0 (2) | Free | Health & Fitness |

## More apps by ShapeHaven Innovations LLC

- [Joke Assembly](https://appshunter.io/ios/app/joke-assembly/id6502868916)
- [WordFlora](https://appshunter.io/ios/app/wordflora/id6677005015)
- [Simple-Task](https://appshunter.io/ios/app/simple-task/id6714447993)
- [Interval(x)](https://appshunter.io/ios/app/intervalx/id6739734149)
- [mDNSShark](https://appshunter.io/ios/app/mdnsshark/id6741874026)

All apps by ShapeHaven Innovations LLC: https://appshunter.io/developer/1747127977

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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 2026-10-21.*