# Schedule Block Builder vs Clank

The clearest difference is device support: Clank at 3 against Schedule Block Builder's 1. On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Schedule Block Builder | Clank |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Size | 16 MB | 67 MB |
| Requires iOS | 17.6 | **16.4** |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Cezar Beltrao](https://appshunter.io/developer/1895027273) | [DCTR s.r.o.](https://appshunter.io/developer/6812019368) |

## What reviewers say

### Schedule Block Builder

[App page](https://appshunter.io/ios/app/schedule-block-builder/id6762819276)

**In-app purchases:** none


### Clank

[App page](https://appshunter.io/ios/app/clank-screen-time-blocker/id6812019126)

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Schedule Block Builder free?

Schedule Block Builder is free to download, with no in-app purchases.

### Is Clank free?

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

### Do Schedule Block Builder or Clank have ads?

Neither Schedule Block Builder nor Clank shows ads.

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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.*