# Prism vs BrushMotion

The clearest difference is in-app purchases: BrushMotion at none against Prism's 1. BrushMotion also leads on iOS requirement (18.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Prism sells 1 in-app purchase, starting at $1.99 per month. BrushMotion asks for nothing beyond the download.

Prism ships an update every 11 days, BrushMotion weekly. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Prism | BrushMotion |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 11 days | **Weekly** |
| Size | 3 MB | 11 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [剑炜 陈](https://appshunter.io/developer/1868267178) | [Esin Elif DAG](https://appshunter.io/developer/1879307911) |

## What reviewers say

### Prism

[App page](https://appshunter.io/ios/app/prism-sunlight-tracker/id6758259341)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Prism Premium (Monthly) | $1.99 | per month |


### BrushMotion

[App page](https://appshunter.io/ios/app/brushmotion/id6787498080)

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

**In-app purchases:** none


## Frequently asked questions

### Is Prism free?

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

### Is BrushMotion free?

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

### Do Prism or BrushMotion have ads?

Neither Prism nor BrushMotion shows ads.

### Which is updated more often, Prism or BrushMotion?

Prism ships an update every 11 days, and BrushMotion weekly. Most recently, Prism was updated on October 28, 2026 and BrushMotion on October 25, 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.*