# b vs Relay Didavie

The clearest difference is update cadence: Relay Didavie at every 5 days against b's every 3 months. 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 3 months, Relay Didavie every 5 days. The most recent releases landed on October 27, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | b | Relay Didavie |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Size | 78 MB | 120 MB |
| Requires iOS | **14.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Paul Arnaud DEGUENON](https://appshunter.io/developer/1721635776) | [Didavie LLC](https://appshunter.io/developer/1895509153) |

## What reviewers say

### b

[App page](https://appshunter.io/ios/app/b-resto/id6474456218)

**Features:** macOS Compatibility

**In-app purchases:** none


### Relay Didavie

[App page](https://appshunter.io/ios/app/relay-didavie/id6763822516)

**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 Relay Didavie free?

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

### Do b or Relay Didavie have ads?

Neither b nor Relay Didavie shows ads.

### Which is updated more often, b or Relay Didavie?

b ships an update every 3 months, and Relay Didavie every 5 days. Most recently, b was updated on October 27, 2026 and Relay Didavie on November 5, 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.*