# noteSUM vs Prism

The clearest difference is in-app purchases: Prism at none against noteSUM's 3. Prism also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. noteSUM sells 3 one-off in-app purchases. Prism asks for nothing beyond the download.

noteSUM ships an update monthly, Prism every 3 weeks. The most recent releases landed on October 10, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | noteSUM | Prism |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 3 weeks** |
| Size | 7 MB | 35 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kazuhiro Sawamura](https://appshunter.io/developer/620439638) | [Trajectory Labs, LLC](https://appshunter.io/developer/1871911403) |

## What reviewers say

### noteSUM

[App page](https://appshunter.io/ios/app/notesum/id1553539735)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Number of History records | $0.99 | one-time |
| Number of Favorites | $0.99 | one-time |
| Hide Ads | $2.99 | one-time |


### Prism

[App page](https://appshunter.io/ios/app/prism-focus-task-manager/id6761664849)

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

**In-app purchases:** none


## Frequently asked questions

### Is noteSUM free?

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

### Is Prism free?

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

### Do noteSUM or Prism have ads?

noteSUM shows ads; Prism does not.

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

noteSUM ships an update monthly, and Prism every 3 weeks. Most recently, noteSUM was updated on October 10, 2026 and Prism on October 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.*