# Rhythm: Semen Retention — Streak tracker, energy & HRV

> Streak tracker, energy & HRV (iPhone/iPad app by 阳 孙.)

- Source: https://appshunter.io/ios/app/rhythm-semen-retention/id6759880730 (this page in markdown: same URL + `.md`)
- Developer: [阳 孙](https://appshunter.io/developer/1518808403)
- Category: Health & Fitness
- Price: Free with in-app purchases
- Age rating: 12+
- Requires: iOS 17.1 · 9 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2026-03-10
- Data updated: 2026-10-13

## What is Rhythm?

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.

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| T_Score_Pro_Yearly | $3.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| T-Score-Pro | $12.99 | one-time |


## Is Rhythm safe?

Not enough ratings yet to assess Rhythm.

## Is Rhythm legit?

Rhythm: Semen Retention appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Rhythm is 75 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 1.5 — 2026-10-12

• Sleep that fits you: set your own sleep goal. Short nights rich in deep and REM sleep are no longer flagged as "not enough sleep"
• New sleep quality card based on your deep + REM share
• Pro: create your own colored tags, add them to any session, and see tag stats in Insights
• Fixes and improvements

### 1.4 — 2026-10-05

• New: Streak home — days since your last release, milestones, best streak and your goal
• New: Body by Streak Day (Pro) — compare energy, mood, HRV, resting heart rate and sleep by streak length
• New: Home/Lock Screen widgets and Apple Watch complications
• New: Urge SOS, and a 3-question plan setup
• 3-day free trial on the yearly plan
• Watch sessions are no longer saved as workouts in Health, and sync reliably to iPhone
• Wrist sensitivity settings and auto-calibration on Apple Watch
• Many fixes and polish

### 1.2 — 2026-05-28

- bug fixed

### 1.1 — 2026-05-25

v1.1 — Major insights upgrade: HRV × rhythm correlation analysis, HealthKit historical backfill, tappable metric details with rich charts, Apple Watch background HR tracking, Face ID full-screen lock. Privacy first, local-first.

### 1.0 — 2026-03-10

No release notes.

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## More apps by 阳 孙

- [Outline camera](https://appshunter.io/ios/app/outline-camera/id1518808775)
- [iFunRecord](https://appshunter.io/ios/app/ifunrecord/id1519661587)
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- [R90 sleep assistant](https://appshunter.io/ios/app/r90-sleep-assistant/id1527861860)
- [今天刷什么 你的卡包助手 管理你的信用卡](https://appshunter.io/ios/app/id1541607978)
- [Stand Up! Drink Water!](https://appshunter.io/ios/app/stand-up-drink-water/id1546525023)

All apps by 阳 孙: https://appshunter.io/developer/1518808403

## Related topics

[semen retention](https://appshunter.io/ios/topics/semen-retention)

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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 2026-10-13.*