# tf vs 小护圈

The clearest difference is ads: tf at none against 小护圈's shown. 小护圈's advantage is update cadence (every 3 weeks vs every 5 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

tf ships an update every 5 weeks, 小护圈 every 3 weeks. The most recent releases landed on September 16, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | tf | 小护圈 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Size | 25 MB | 122 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Chengdu DormitoryStore E-Commerce Co. Ltd.](https://appshunter.io/developer/1064904653) | [成都小护圈科技有限公司](https://appshunter.io/developer/1639456124) |

## What reviewers say

### tf

[App page](https://appshunter.io/ios/app/tf-eq/id1464844370)

**Features:** macOS Compatibility

**In-app purchases:** none


### 小护圈

[App page](https://appshunter.io/ios/app/id6499198968)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is tf free?

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

### Is 小护圈 free?

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

### Do tf or 小护圈 have ads?

小护圈 shows ads; tf does not.

### Which is updated more often, tf or 小护圈?

tf ships an update every 5 weeks, and 小护圈 every 3 weeks. Most recently, tf was updated on September 16, 2026 and 小护圈 on September 8, 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.*