# Corner Radius vs CanvasPrism

The clearest difference is in-app purchases: CanvasPrism at none against Corner Radius's 3. CanvasPrism also leads on update cadence (daily vs monthly). Corner Radius's advantage is iOS requirement (17.0 vs 26.2). On price, ads and device support there is nothing between them.

Both are free to download. Corner Radius sells 3 in-app purchases, starting at $2.99 per 7 days. CanvasPrism asks for nothing beyond the download.

Corner Radius ships an update monthly, CanvasPrism daily. The most recent releases landed on October 8, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Corner Radius | CanvasPrism |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/canvasprism-whiteboard/id6785350171/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Daily** |
| Monetization | — | Free |
| Size | 5 MB | 195 MB |
| Requires iOS | **17.0** | 26.2 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Phuc Pham](https://appshunter.io/developer/1893081423) | [Life Utility Apps, LLC](https://appshunter.io/developer/1721977600) |

## What reviewers say

### Corner Radius

[App page](https://appshunter.io/ios/app/corner-radius-live-preview/id6772274031)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Yearly | $14.99 | per year |
| Lifetime Pro | $29.99 | one-time |


### CanvasPrism

[App page](https://appshunter.io/ios/app/canvasprism-whiteboard/id6785350171)

A private, offline whiteboard app for drawing, sketching, and creating diagrams. It offers an infinite canvas, shape libraries, and Apple Pencil support, with options for iCloud sync. Your creations are stored securely on your device.

**Highlights:** Infinite canvas for freehand sketching, Smart shape connectors for diagrams, Component libraries and templates, Apple Pencil support with gestures, Customizable themes and backgrounds, Export to PNG, PDF, SVG, Optional iCloud sync

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

**In-app purchases:** none


## Frequently asked questions

### Is Corner Radius free?

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

### Is CanvasPrism free?

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

### Do Corner Radius or CanvasPrism have ads?

Neither Corner Radius nor CanvasPrism shows ads.

### Which is updated more often, Corner Radius or CanvasPrism?

Corner Radius ships an update monthly, and CanvasPrism daily. Most recently, Corner Radius was updated on October 8, 2026 and CanvasPrism on October 16, 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.*