# 科助 vs tf

The clearest difference is update cadence: tf at every 5 weeks against 科助's every 6 months. 科助's advantage is iOS requirement (10.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

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

科助 ships an update every 6 months, tf every 5 weeks. The most recent releases landed on October 26, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | 科助 | tf |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 weeks** |
| Size | 36 MB | 25 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [瑞清 杜](https://appshunter.io/developer/1435289911) | [Chengdu DormitoryStore E-Commerce Co. Ltd.](https://appshunter.io/developer/1064904653) |

## What reviewers say

### 科助

[App page](https://appshunter.io/ios/app/id1430873868)

**Features:** macOS Compatibility

**In-app purchases:** none


### tf

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 科助 free?

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

### Is tf free?

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

### Do 科助 or tf have ads?

Neither 科助 nor tf shows ads.

### Which is updated more often, 科助 or tf?

科助 ships an update every 6 months, and tf every 5 weeks. Most recently, 科助 was updated on October 26, 2026 and tf on October 20, 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.*