# Lean · 薄肌 — Train, drink, sleep: level up

> AI-driven strength training journal for serious lifters with detailed progress tracking. (iPhone/iPad app by 海圆 马.)

- Source: https://appshunter.io/ios/app/lean/id6767283263 (this page in markdown: same URL + `.md`)
- Developer: [海圆 马](https://appshunter.io/developer/1896405198)
- Category: Health & Fitness
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 37 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2026-06-03
- Data updated: 2026-10-22
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/lean/id6767283263/reviews.md

## What is Lean · 薄肌?

Lean, formerly LumaFit, brings strength training, hydration and sleep into one daily routine.

TRAIN AND SEE YOUR PROGRESS
• Follow built-in routines or create multi-day plans.
• Record sets, reps, weight, RPE, cardio and workout notes.
• Review personal records, training history, muscle coverage and progress trends.
• Use Apple Watch, Live Activities and widgets, with optional iCloud sync.

MAKE CONSISTENCY VISIBLE
• Track training, water and sleep from the daily dashboard.
• Optionally import sleep records from Apple Health after granting permission.
• Reveal silver-blue metallic workout reports, review your best sets and share your progress.
• Choose whether to include body measurements or hide absolute training weights in shared reports.

CAMERA EXAMS AND ACHIEVEMENTS
• Try pull-up exams and push-up counting with on-device pose recognition and live landmarks.
• Switch between front and rear cameras in the camera screen.
• Unlock playful fitness degree achievements, revisit them on the achievement wall, and share landscape certificates or portrait posters.
• Camera video for movement recognition is processed on-device and is not recorded or uploaded.

Pose counting depends on lighting, camera placement and visibility. In-app fitness degrees are entertainment achievements, not academic degrees or professional certifications.

OPTIONAL AI COACHING
• Ask training questions or generate editable plans and workout reviews.
• Estimate meals from photos or descriptions, then review and confirm before saving.
• Two free AI text chats are available each day. Additional AI features require LumaFIT Pro.
• Online AI requires an internet connection and consent before relevant data is sent to the disclosed service.

LUMAFIT PRO
Monthly and yearly auto-renewable subscriptions are available through Apple. Any eligible introductory offer and renewal price are shown before purchase. Payment is charged to your Apple Account at confirmation. Subscriptions renew automatically unless cancelled at least 24 hours before the current period ends. Manage or cancel in your App Store account settings and restore purchases in the app. A LumaFit account is optional.

Fitness guidance and meal estimates are for general reference, not medical advice. Stop exercising if you feel pain or unwell.

Privacy Policy: https://lumafit.xyz/privacy
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- AI-assisted workout planning
- Voice and text workout logging
- Post-workout AI debriefs
- Set-by-set logging with PR detection
- Apple Watch standalone app
- HealthKit integration
- 3D muscle heatmap visualization

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| LumaFit Pro Yearly | $59.99 | per year |
| LumaFit Pro Monthly | $8.99 | per month |


## Is Lean · 薄肌 safe?

Not enough ratings yet to assess Lean · 薄肌.

## Is Lean · 薄肌 legit?

Lean · 薄肌 has limited verification signals. The AppsHunter Legitimacy Score for Lean · 薄肌 is 58 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/lean/id6767283263/reviews.md

### 1/5 — Beware

*2026-06-16*

App claims free trial, but it charged me for subscription immediately. Even after charge, app says I’m in free trial. Extremely difficult to use. AI chat could not connect. Workout would not load. Can only change lbs in kg increments. workout does not adjust based on actual weights.

## Frequently asked questions about Lean · 薄肌

### What is LumaFit?

LumaFit is an AI-native strength training journal designed for serious lifters. It helps you track every set, receive coaching after each session, and monitor your progress with detailed analytics.

### Does LumaFit offer pre-made workout programs?

Yes, LumaFit includes built-in, proven strength training programs like 5x5, Push/Pull/Legs, Upper/Lower, and 5/3/1, requiring no setup.

### How does LumaFit's AI coaching work?

LumaCoach AI assists with planning by drafting structured plans based on your goals, frequency, equipment, and level. It also provides post-workout debriefs with next-session weight recommendations.

### Can I log my workouts with LumaFit on my Apple Watch?

Yes, LumaFit has a standalone Apple Watch app that allows you to log sets, view rest timers, and swap exercises directly from your wrist.

### What data does LumaFit integrate with?

LumaFit integrates with HealthKit to write workout duration and active calories. It also uses iCloud sync to keep your data consistent across devices.

### What features are included in the free version of LumaFit?

The free version of LumaFit includes core logging, built-in classic programs, and custom plan creation. You can track sets, reps, weights, and view basic progress.

### What are the benefits of LumaFit Pro?

LumaFit Pro unlocks AI plan generation, post-workout AI debriefs with weight suggestions, and weekly AI recovery reports and muscle trend analysis.

### How much does LumaFit Pro cost and what are the subscription terms?

LumaFit Pro offers monthly and yearly subscription options. The yearly plan includes a 7-day free trial and costs approximately $4.17/month, billed annually. Subscriptions auto-renew unless canceled at least 24 hours prior to the end of the current period.

## Version history (last 5 releases)

### 2.0.1 — 2026-10-19

Refreshed App Store screenshots for Lean's training, nutrition, hydration, sleep, pull-up exams and fitness achievements.

### 2.0 — 2026-10-18

Lean 2.0 brings a new training experience.

• A redesigned daily dashboard for training, hydration and sleep.
• Silver-blue metallic workout reports with personal records, muscle coverage and sharing privacy controls.
• On-device pull-up exams, push-up counting and live pose landmarks, with front and rear camera controls.
• Three playful fitness degree levels, certificate animations, landscape certificates and portrait posters.
• Revisit achievements and save reports or certificates to Photos.
• Optional Apple Health sleep import and improvements to workout recording, voice cues and startup transitions.

Camera counting depends on visibility, lighting and camera placement. Fitness degrees are in-app entertainment achievements, not academic or professional qualifications.

### 1.0.4 — 2026-09-29

• Refreshed LumaCoach with streaming replies, clearer activity updates, and more reliable follow-up responses.
• Record meals from a photo or a written description. Review AI estimates before saving them to your food log.
• Made Focus Recording and coach navigation feel smoother, with clearer transitions and a more comfortable chat layout.
• Improved startup, LumaFIT Pro information, and overall stability. Two free AI text chats remain available each day.

### 1.0.3 — 2026-08-13

• Fixed subscription and free-trial status messaging
• Improved AI coach reliability and workout loading
• Corrected lb/kg weight adjustments and next-workout recommendations
• Improved scrolling and overall stability

### 1.0.2 — 2026-06-09

Fixed known issues
 Improved scrolling smoothne

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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 2026-10-22.*