# DustMap vs Barometer on‑Wrist

The clearest difference is in-app purchases: Barometer on‑Wrist at none against DustMap's 4. DustMap's advantage is device support and iOS requirement (15 vs 26.0). On price there is nothing between them.

Both are free to download. DustMap sells 4 one-off in-app purchases. Barometer on‑Wrist asks for nothing beyond the download.

## The numbers

| Metric | DustMap | Barometer on‑Wrist |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | — |
| Update frequency | Every 5 months | — |
| Size | 63 MB | 3 MB |
| Requires iOS | **15** | 26.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [hidehiko aihara](https://appshunter.io/developer/1178520609) | [晓玮 郭](https://appshunter.io/developer/1896738896) |

## What reviewers say

### DustMap

[App page](https://appshunter.io/ios/app/dustmap/id6744262672)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee (Regular) | $0.49 | one-time |
| Coffee (Large) | $1.99 | one-time |
| システム改善応援費 | $1.99 | one-time |
| Cake Set | $5.99 | one-time |


### Barometer on‑Wrist

[App page](https://appshunter.io/ios/app/barometer-onwrist/id6805385333)

**In-app purchases:** none


## Frequently asked questions

### Is DustMap free?

DustMap is free to download, with in-app purchases available.

### Is Barometer on‑Wrist free?

Barometer on‑Wrist is free to download, with no in-app purchases.

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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.*