# Circle Tracker vs 研成了

The clearest difference is in-app purchases: Circle Tracker at none against 研成了's 1. Circle Tracker also leads on update cadence (every 6 weeks vs every 12 months) and iOS requirement (8.0 vs 11.0). On price, ads and device support there is nothing between them.

Both are free to download. 研成了 sells 1 one-off in-app purchase. Circle Tracker asks for nothing beyond the download.

Circle Tracker ships an update every 6 weeks, 研成了 every 12 months. The most recent releases landed on October 9, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Circle Tracker | 研成了 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 12 months |
| Size | 48 MB | 42 MB |
| Requires iOS | **8.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Beijing IQI Technology Co.,Ltd.](https://appshunter.io/developer/1166057913) | [鑫 李](https://appshunter.io/developer/1614393207) |

## What reviewers say

### Circle Tracker

[App page](https://appshunter.io/ios/app/circle-tracker/id1460564982)

**Features:** macOS Compatibility

**In-app purchases:** none


### 研成了

[App page](https://appshunter.io/ios/app/id1619245711)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 管理类综合•联考写作•精讲课 | $299.99 | one-time |


## Frequently asked questions

### Is Circle Tracker free?

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

### Is 研成了 free?

研成了 is free to download, with in-app purchases available.

### Do Circle Tracker or 研成了 have ads?

Neither Circle Tracker nor 研成了 shows ads.

### Which is updated more often, Circle Tracker or 研成了?

Circle Tracker ships an update every 6 weeks, and 研成了 every 12 months. Most recently, Circle Tracker was updated on October 9, 2026 and 研成了 on October 6, 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.*