Rhythm vs 萌芽sprout
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Rhythm
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Count your days, handle urges in the moment, and see how your own body changes as your streak grows. YOUR STREAK, FRONT AND CENTER • Days since your last release, with milestones at Day 1, 3, 7, 14, 30, 60, 90, 180 and 365 • Best streak and your personal goal, set in a 3-question onboarding • Home Screen and Lock Screen widgets, plus Apple Watch complications URGE SOS When an urge hits, open a 1-minute breathing reset or a 10-minute delay timer — on iPhone or right on your wrist. Log the urge and what you did, so you learn your triggers. BODY BY STREAK DAY (PRO) Rhythm groups your own data by streak length (Day 0–2, 3–6, 7–13, 14+) and compares energy, mood, HRV, resting heart rate and sleep. No generic promises — just your numbers. APPLE WATCH • Your streak on the watch and watch face • Urge SOS and breathing on the wrist • Optional wrist logging with heart-rate curve DAILY CHECK-IN Ten seconds a day for energy, mood, stress, sleep and sunlight. Connect Apple Health to fill in sleep, HRV and resting heart rate automatically (read-only). PRIVATE BY DEFAULT • Data stays on your device; optional iCloud sync • No account, no ads • Face ID lock and app-switcher privacy cover RHYTHM PRO Unlock Body by Streak Day, unlimited history and trends, sleep and stress correlations, Watch heart-rate curves and iCloud sync. Choose a yearly subscription (with a 3-day free trial for new subscribers) or a one-time lifetime unlock. Payment is charged to your Apple ID. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period; manage it in your App Store account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.privacypolicies.com/privacy/view/697498328ebed956f9629abf74d11f58 Rhythm is a self-tracking tool, not a medical device, and does not provide medical advice.
萌芽sprout
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萌芽是一款纯本地运行的女性周期追踪与身体管理工具。不注册、不登录、不上传,所有数据只保存在你的手机里。 【核心功能】 经期追踪 — 标记真实经期,自动计算周期、预测下次经期和排卵日 节律日程 — 根据周期位置,提供每日行动建议 身体记录 — 体重、体温、睡眠、饮水、情绪、症状,带历史趋势图 时间轴 — 所有记录按日期排列,支持搜索筛选 iCloud 备份 — 一键备份到你的 iCloud,换机不丢数据 【隐私优先】 零权限 — 不要定位、不要通讯录、不要相册权限 纯本地 — 没有服务器,没有账号,数据永远不离开你的设备 离线可用 — 没有网络也能正常使用
Screenshots
Verdict
The clearest difference is in-app purchases: 萌芽sprout at none against Rhythm's 2. 萌芽sprout also leads on update cadence (every 5 days vs every 3 weeks). 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. Rhythm sells 2 in-app purchases, starting at $9.99 per year. 萌芽sprout asks for nothing beyond the download.
Rhythm ships an update every 3 weeks, 萌芽sprout every 5 days. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.
| Parameter | Rhythm | 萌芽sprout |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, Apple Watch — better | iPhone |
| Requires iOS | 17.1 | 17.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 24 MB |
| Age rating | 12+ | 12+ |
| Developer | 阳 孙 | 勐 李 |
In-app purchases
Rhythm
- T_Score_Pro_Yearly3 Days trial$9.991 Year
- T-Score-Pro$29.99
萌芽sprout
No in-app purchases









