# B vs eUTC

The clearest difference is update cadence: B at fortnightly against eUTC's monthly. B also leads on iOS requirement (9.0 vs 15.5). 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.

B ships an update fortnightly, eUTC monthly. The most recent releases landed on October 7, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | B | eUTC |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Size | 24 MB | 76 MB |
| Requires iOS | **9.0** | 15.5 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Tho Trong Nguyen](https://appshunter.io/developer/1093690555) | [UNIVERSITY OF TRANSPORT AND COMMUNICATIONS](https://appshunter.io/developer/1550228970) |

## What reviewers say

### B

[App page](https://appshunter.io/ios/app/b-learning/id1519150149)

**Features:** macOS Compatibility

**In-app purchases:** none


### eUTC

[App page](https://appshunter.io/ios/app/eutc/id6447959887)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is B free?

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

### Is eUTC free?

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

### Do B or eUTC have ads?

Neither B nor eUTC shows ads.

### Which is updated more often, B or eUTC?

B ships an update fortnightly, and eUTC monthly. Most recently, B was updated on October 7, 2026 and eUTC on October 11, 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.*