# Solid Engineer vs Corner Radius

The clearest difference is in-app purchases: Solid Engineer at none against Corner Radius's 3. Solid Engineer also leads on device support (3 vs 1) and iOS requirement (15.6 vs 17.0). Corner Radius's advantage is update cadence (monthly vs every 5 months). On price and ads there is nothing between them.

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

Solid Engineer ships an update every 5 months, Corner Radius monthly. The most recent releases landed on October 6, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Solid Engineer | Corner Radius |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/solid-engineer/id6450507988/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | Free | — |
| Size | 16 MB | 5 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Axxem B.V.](https://appshunter.io/developer/1515691144) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## What reviewers say

### Solid Engineer

[App page](https://appshunter.io/ios/app/solid-engineer/id6450507988)

This app teaches programming through visual 3D model creation. It offers modes for beginners to advanced users, including JavaScript support. Models can be printed or shared.

**Highlights:** Visual programming interface, 3D model creation, Printable model export, Beginner to advanced modes, JavaScript integration, Keyframe animation

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Solid Engineer free?

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

### Is Corner Radius free?

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

### Do Solid Engineer or Corner Radius have ads?

Neither Solid Engineer nor Corner Radius shows ads.

### Which is updated more often, Solid Engineer or Corner Radius?

Solid Engineer ships an update every 5 months, and Corner Radius monthly. Most recently, Solid Engineer was updated on October 6, 2026 and Corner Radius on October 8, 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.*