# SOLID Architecture vs Cyberprep Pro

The clearest difference is iOS requirement: SOLID Architecture at 13.0 against Cyberprep Pro's 26.4. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. SOLID Architecture sells 3 one-off in-app purchases and Cyberprep Pro sells 3 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

SOLID Architecture ships an update every 9 days, Cyberprep Pro weekly. The most recent releases landed on October 6, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | SOLID Architecture | Cyberprep Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Weekly** |
| Size | 94 MB | 18 MB |
| Requires iOS | **13.0** | 26.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Airton Siqueira de Freitas](https://appshunter.io/developer/1809776051) | [Jesus Maria Rodriguez Andrade](https://appshunter.io/developer/1892049960) |

## What reviewers say

### 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 |


### Cyberprep Pro

[App page](https://appshunter.io/ios/app/cyberprep-pro/id6761915398)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $8.99 | per month |
| Pro Yearly | $79.99 | per year |
| Pro Lifetime | $149.99 | one-time |


## Frequently asked questions

### Is SOLID Architecture free?

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

### Is Cyberprep Pro free?

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

### Do SOLID Architecture or Cyberprep Pro have ads?

Neither SOLID Architecture nor Cyberprep Pro shows ads.

### Which is updated more often, SOLID Architecture or Cyberprep Pro?

SOLID Architecture ships an update every 9 days, and Cyberprep Pro weekly. Most recently, SOLID Architecture was updated on October 6, 2026 and Cyberprep Pro on September 24, 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.*