# B vs Lier

The clearest difference is update cadence: Lier at fortnightly against B's every 5 months. Lier also leads on iOS requirement (15.1 vs 17.6). 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 every 5 months, Lier fortnightly. The most recent releases landed on September 23, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | B | Lier |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Fortnightly** |
| Size | 28 MB | 70 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [GVL-Technics](https://appshunter.io/developer/1498251182) | [Vlaamse overheid](https://appshunter.io/developer/664577169) |

## What reviewers say

### B

[App page](https://appshunter.io/ios/app/b-logicx/id587424219)

**Features:** macOS Compatibility

**In-app purchases:** none


### Lier

[App page](https://appshunter.io/ios/app/lier/id6547850515)

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

**In-app purchases:** none


## Frequently asked questions

### Is B free?

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

### Is Lier free?

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

### Do B or Lier have ads?

Neither B nor Lier shows ads.

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

B ships an update every 5 months, and Lier fortnightly. Most recently, B was updated on September 23, 2026 and Lier 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.*