# 动作比对 vs 自胜

The clearest difference is in-app purchases: 自胜 at none against 动作比对's 1. 自胜 also leads on iOS requirement (13.0 vs 15.5). 动作比对's advantage is update cadence (every 2 days vs monthly). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. 动作比对 sells 1 one-off in-app purchase. 自胜 asks for nothing beyond the download.

动作比对 ships an update every 2 days, 自胜 monthly. Both last shipped on October 31, 2026.

## The numbers

| Metric | 动作比对 | 自胜 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ai/id6766137033/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Monthly |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 64 MB | 34 MB |
| Requires iOS | 15.5 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chengdu Naodong Youai Technology Co., Ltd.](https://appshunter.io/developer/6773534308) | [洋贝 赵](https://appshunter.io/developer/1878243877) |

## What reviewers say

### 动作比对

[App page](https://appshunter.io/ios/app/ai/id6766137033)

Analyze your movements by comparing your practice videos side-by-side with standard actions. Get detailed feedback with AI-powered analysis, including skeletal tracking, joint angle alignment, and a score from 0-100. Ideal for fitness, dance, sports, and martial arts training.

**Highlights:** Side-by-side video comparison, 33-point skeletal tracking, Joint angle alignment, 0-100 scoring and grading, AI natural language feedback, Local bone extraction, Real-time progress bar

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 完整版 · 解锁全部功能 | $14.99 | one-time |


### 自胜

[App page](https://appshunter.io/ios/app/id6789346162)

This app helps you track your fitness journey with a focus on privacy and simplicity. Record your weight, manage goals, and use photos to visually document your progress without any distractions or data sharing.

**Highlights:** Local data storage for privacy, Weight tracking with trend charts, Goal setting and progress monitoring, Body posture photo comparison, BMI calculation and analysis, Ad-free and distraction-free interface

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 动作比对 free?

动作比对 is free to download, with in-app purchases available.

### Is 自胜 free?

自胜 is free to download, with no in-app purchases.

### Do 动作比对 or 自胜 have ads?

Neither 动作比对 nor 自胜 shows ads.

### Which is updated more often, 动作比对 or 自胜?

动作比对 ships an update every 2 days, and 自胜 monthly. Most recently, 动作比对 was updated on October 31, 2026 and 自胜 on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*