# dtb2 vs Boulder Rest

The clearest difference is iOS requirement: dtb2 at 13.0 against Boulder Rest's 17.0. 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.

## The numbers

| Metric | dtb2 | Boulder Rest |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Size | 57 MB | 5 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [gareth Scott](https://appshunter.io/developer/1709863016) | [Olivier Bohrer](https://appshunter.io/developer/1611839008) |

## What reviewers say

### dtb2

[App page](https://appshunter.io/ios/app/dtb2/id6754847862)

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

**In-app purchases:** none


### Boulder Rest

[App page](https://appshunter.io/ios/app/boulder-rest/id6784043317)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is dtb2 free?

dtb2 is free to download, with no in-app purchases.

### Is Boulder Rest free?

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

### Do dtb2 or Boulder Rest have ads?

Neither dtb2 nor Boulder Rest shows ads.

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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.*