# 어시스트핏 vs b1of

어시스트핏 and b1of are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | 어시스트핏 | b1of |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 45 MB | 64 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [ASSIST FIT Co., Ltd.](https://appshunter.io/developer/1680887737) | [JAE HYUN JUNG](https://appshunter.io/developer/1869234871) |

## What reviewers say

### 어시스트핏

[App page](https://appshunter.io/ios/app/id6477275783)

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

**In-app purchases:** none


### b1of

[App page](https://appshunter.io/ios/app/b1of/id6757843939)

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

**In-app purchases:** none


## Frequently asked questions

### Is 어시스트핏 free?

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

### Is b1of free?

b1of is free to download, with no in-app purchases.

### Do 어시스트핏 or b1of have ads?

Neither 어시스트핏 nor b1of shows ads.

### Which is updated more often, 어시스트핏 or b1of?

어시스트핏 ships an update every 3 weeks, and b1of every 3 weeks. Most recently, 어시스트핏 was updated on October 8, 2026 and b1of on October 4, 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.*