Hormone Strong vs Rhythmus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hormone Strong
This app guides women in establishing healthier routines by integrating fitness, cycle awareness, and hormone-focused wellness tracking. Monitor habits, exercise, and lifestyle choices to achieve personal wellness objectives.
- Fitness tracking
- Cycle awareness
- Hormone-focused wellness
- Habit tracking
- Lifestyle pattern monitoring
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Hormone Strong helps women build healthier routines through fitness, cycle awareness, and hormone-focused wellness tracking. Track habits, workouts, and lifestyle patterns while supporting your personal wellness goals. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://hormone-strong.replit.app/privacy
Rhythmus
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Rhythmus is a period tracker with a cycle calendar — plus a nutrition and training plan that changes with your cycle. WHAT RHYTHMUS DOES • Cycle and period calendar: log your period, see your cycle day and phase at a glance, with estimated ovulation and fertile window • Nutrition plan: meals and nutrients matched to your current phase – omnivore, vegetarian, vegan – with a shopping list • Training plan: workouts scaled to your intensity and training days, logged set by set • Supplements: which nutrients matter in which phase • Daily energy check-in: feeling low, and the app suggests a gentler session • Weekly overview, symptom diary, cycle statistics from your own history WHO IT IS FOR For women who train and notice that the same session feels easy one week and impossible the next. Menstruation, follicular phase, ovulation and the luteal phase each ask for something different — Rhythmus takes that into account. NO ACCOUNT, NO TRACKING No sign-up, no registration, no ads, no subscriptions, no in-app purchases. Everything you enter stays on your device and is sent nowhere. The app works fully offline. From Settings you can export a backup at any time and restore it on another device. WITH SOURCES Every health statement in the app comes with a citation you can tap — straight to the study or fact sheet. Among others from the Journal of the International Society of Sports Nutrition, the Journal of Medical Internet Research and the National Institutes of Health. Available in German, English and Spanish. Rhythmus is a free passion project. Note: Rhythmus is not a medical device, not a contraception method, and does not replace medical advice.
Screenshots
Verdict
The clearest difference is in-app purchases: Rhythmus at none against Hormone Strong's 1. Rhythmus also leads on update cadence (every 2 days vs every 4 days) and iOS requirement (15.0 vs 17.0). 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. Hormone Strong sells 1 in-app purchase, starting at $9.99 per month. Rhythmus asks for nothing beyond the download.
Hormone Strong ships an update every 4 days, Rhythmus every 2 days. The most recent releases landed on October 31, 2026 and October 24, 2026 respectively.
| Parameter | Hormone Strong | Rhythmus |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 4 days | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 62 MB | 20 MB |
| Age rating | 12+ | 4+ |
| Developer | Chelsie Sharp | Patrick Sarpen |
In-app purchases
Hormone Strong
- Hormone Strong Premium7 Days trial$9.991 Month
Rhythmus
No in-app purchases
