# Screen Time Control vs Cala

The clearest difference is update cadence: Screen Time Control at weekly against Cala's every 2 months. Screen Time Control also leads on iOS requirement (16.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Screen Time Control sells 2 in-app purchases, starting at $7.99 per month and Cala sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

Screen Time Control ships an update weekly, Cala every 2 months. Both last shipped on October 28, 2026.

## The numbers

| Metric | Screen Time Control | Cala |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Size | 14 MB | 26 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Tolunay Kandirmaz](https://appshunter.io/developer/1644751832) | [Spark Digital Incorporated](https://appshunter.io/developer/1875625754) |

## What reviewers say

### Screen Time Control

[App page](https://appshunter.io/ios/app/screen-time-control-petacat/id6743671544)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $7.99 | per month |
| Annual Premium | $49.99 | per year |


### Cala

[App page](https://appshunter.io/ios/app/cala-app-blocker-screen-time/id6761075944)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cala Pro — Monthly | $7.99 | per month |
| Cala Pro — Yearly | $59.99 | per year |


## Frequently asked questions

### Is Screen Time Control free?

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

### Is Cala free?

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

### Do Screen Time Control or Cala have ads?

Neither Screen Time Control nor Cala shows ads.

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

Screen Time Control ships an update weekly, and Cala every 2 months. Most recently, Screen Time Control was updated on October 28, 2026 and Cala on October 28, 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.*