# SSS vs Cortex

The clearest difference is in-app purchases: SSS at none against Cortex's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Cortex sells 3 in-app purchases, starting at $6.99 per month. SSS asks for nothing beyond the download.

SSS ships an update weekly, Cortex every 5 days. The most recent releases landed on September 24, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | SSS | Cortex |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Size | 3 MB | 78 MB |
| Requires iOS | 17.1 | **16.4** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [台灣日旭科技](https://appshunter.io/developer/1481560129) | [Dmitry Afanasyev](https://appshunter.io/developer/1788884993) |

## What reviewers say

### SSS

[App page](https://appshunter.io/ios/app/sss-825/id6746241470)

**Features:** macOS Compatibility

**In-app purchases:** none


### Cortex

[App page](https://appshunter.io/ios/app/cortex-ai-focus-timer/id6759869031)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Focus Timer Premium | $6.99 | per month |
| AI Focus Timer Premium | $49.99 | per year |
| AI Focus Timer Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is SSS free?

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

### Is Cortex free?

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

### Do SSS or Cortex have ads?

Neither SSS nor Cortex shows ads.

### Which is updated more often, SSS or Cortex?

SSS ships an update weekly, and Cortex every 5 days. Most recently, SSS was updated on September 24, 2026 and Cortex on October 1, 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.*