# Unbuilt Works vs SOLID Architecture

The clearest difference is ads: SOLID Architecture at none against Unbuilt Works's shown. Unbuilt Works's advantage is iOS requirement (13.4 vs 15.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Unbuilt Works sells 2 in-app purchases, starting at $4.99 per month and SOLID Architecture sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Unbuilt Works ships an update every 5 days, SOLID Architecture every 9 days. The most recent releases landed on October 16, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Unbuilt Works | SOLID Architecture |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Every 9 days |
| Size | 39 MB | 102 MB |
| Requires iOS | **13.4** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | +4 |
| Developer | [Brett Cassidy](https://appshunter.io/developer/1821458102) | [Airton Siqueira de Freitas](https://appshunter.io/developer/1809776051) |

## What reviewers say

### Unbuilt Works

[App page](https://appshunter.io/ios/app/unbuilt-works-architecture/id6748416236)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Premium Yearly | $39.99 | per year |


### SOLID Architecture

[App page](https://appshunter.io/ios/app/solid-architecture/id6755614891)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CERTIFICATE OF COMPLETION | $2.99 | one-time |
| Premium access | $4.99 | one-time |
| FULL PASS ALL APPS | $17.99 | one-time |


## Frequently asked questions

### Is Unbuilt Works free?

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

### Is SOLID Architecture free?

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

### Do Unbuilt Works or SOLID Architecture have ads?

Unbuilt Works shows ads; SOLID Architecture does not.

### Which is updated more often, Unbuilt Works or SOLID Architecture?

Unbuilt Works ships an update every 5 days, and SOLID Architecture every 9 days. Most recently, Unbuilt Works was updated on October 16, 2026 and SOLID Architecture on October 15, 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.*