# SOLID Architecture vs Screen Time Control

The clearest difference is iOS requirement: SOLID Architecture at 13.0 against Screen Time Control's 18.0. 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 Screen Time Control sells 3 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

SOLID Architecture ships an update every 9 days, Screen Time Control fortnightly. The most recent releases landed on September 28, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | SOLID Architecture | Screen Time Control |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Fortnightly |
| Size | 94 MB | 55 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Airton Siqueira de Freitas](https://appshunter.io/developer/1809776051) | [Nicolas Gula](https://appshunter.io/developer/6777588714) |

## 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 |


### Screen Time Control

[App page](https://appshunter.io/ios/app/screen-time-control-guardian/id6800491060)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $6.99 | per month |
| Premium Yearly | $19.99 | per year |
| Premium Lifetime | $69.99 | one-time |


## Frequently asked questions

### Is SOLID Architecture free?

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

### Is Screen Time Control free?

Screen Time Control is free to download, with in-app purchases available.

### Do SOLID Architecture or Screen Time Control have ads?

Neither SOLID Architecture nor Screen Time Control shows ads.

### Which is updated more often, SOLID Architecture or Screen Time Control?

SOLID Architecture ships an update every 9 days, and Screen Time Control fortnightly. Most recently, SOLID Architecture was updated on September 28, 2026 and Screen Time Control on September 13, 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.*