RhythmX vs Mawu
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RhythmX
This app helps you understand your menstrual cycle with a focus on privacy and simplicity. It offers insights into your cycle phases, custom tracking, and educational content without collecting your personal data. All data is stored on your device, and the app is open source.
- Cycle phase insights
- Customizable symptom tracking
- Phase calendar view
- Educational phase information
- On-device data storage
- Open source code
- Optional period reminders
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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 26 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. IMPORTANT RhythmX requires iOS 26 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. LEGAL Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://shapehaveninnovations.com/privacy.html
Mawu
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Mawu is a private period tracker built around one idea: your cycle data is nobody's business but yours. No account. No cloud. No tracking. No analytics. No third-party SDKs. Every entry — period dates, symptoms, notes — stays on your device. Always. There's no server to leak it, no company to sell it, no "anonymized" dataset to be re-identified later. Delete the app and the data is gone with it. WHAT YOU GET • Cycle calendar with phase predictions • Period and symptom logging • Insights into cycle length, regularity, and patterns • A clean, distraction-free interface WHO IT'S FOR You, if you've ever closed a period tracker because it asked you to create an account, accept marketing emails, or share data with "trusted partners." You, if you've ever hesitated before logging something honest because you didn't know where it would end up. WHAT'S NOT IN MAWU • No accounts • No login • No subscriptions • No ads • No analytics • No social features • No "AI insights" trained on your body Just a period tracker. The way it should have always been. Questions or feedback? Email contact@dougandrade.com — it goes directly to the developer.
Screenshots
Verdict
The clearest difference is in-app purchases: Mawu at none against RhythmX's 2. On price, ads, device support and iOS requirement 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. RhythmX sells 2 in-app purchases, starting at $1.99 per month. Mawu asks for nothing beyond the download.
| Parameter | RhythmX | Mawu |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Fortnightly | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone | iPhone |
| Requires iOS | 26.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 7 MB | 1 MB |
| Age rating | 12+ | 12+ |
| Developer | ShapeHaven Innovations LLC | Douglas Andrade |
In-app purchases
RhythmX
- RhythmX Plus Monthly$1.991 Month
- PDF Day Pass$0.99
Mawu
No in-app purchases









