# Project i vs 一起瘦AI FitBot

The clearest difference is iOS requirement: Project i at 13.0 against 一起瘦AI FitBot's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Project i ships an update every 4 days, 一起瘦AI FitBot weekly. The most recent releases landed on October 19, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Project i | 一起瘦AI FitBot |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Weekly |
| Monetization | — | Free |
| Size | 247 MB | 14 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [易系统科技有限公司](https://appshunter.io/developer/1407109252) | [chen poyu](https://appshunter.io/developer/1057483428) |

## What reviewers say

### Project i

[App page](https://appshunter.io/ios/app/project-i/id6502819946)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### 一起瘦AI FitBot

[App page](https://appshunter.io/ios/app/ai-fitbot/id6744090779)

This AI-powered health coach offers personalized guidance, structured 10-day health plans, and community support for weight management and fitness goals. Track your progress, complete daily tasks for rewards, and access expert knowledge to build lasting healthy habits.

**Highlights:** AI personalized health guidance, 10-day Health Marathon program, Weight and meal tracking, Daily tasks with point rewards, 9-person community squads, Expert wellness tips

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

**In-app purchases:** none


## Frequently asked questions

### Is Project i free?

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

### Is 一起瘦AI FitBot free?

一起瘦AI FitBot is free to download, with no in-app purchases.

### Do Project i or 一起瘦AI FitBot have ads?

Neither Project i nor 一起瘦AI FitBot shows ads.

### Which is updated more often, Project i or 一起瘦AI FitBot?

Project i ships an update every 4 days, and 一起瘦AI FitBot weekly. Most recently, Project i was updated on October 19, 2026 and 一起瘦AI FitBot on October 10, 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.*