# Block vs Tetra

The clearest difference is in-app purchases: Block at none against Tetra's 3. Tetra's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Tetra sells 3 one-off in-app purchases. Block asks for nothing beyond the download.

## The numbers

| Metric | Block | Tetra |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | — |
| Size | 184 MB | 168 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [AURORA PIXEL STUDIOS LTD](https://appshunter.io/developer/1896275557) | [Ryan Parrish](https://appshunter.io/developer/6809515313) |

## What reviewers say

### Block

[App page](https://appshunter.io/ios/app/block-switch/id6769525773)

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

**In-app purchases:** none


### Tetra

[App page](https://appshunter.io/ios/app/tetra-blocks-and-flow/id6809515309)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $1.99 | one-time |
| Large Tip | $9.99 | one-time |


## Frequently asked questions

### Is Block free?

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

### Is Tetra free?

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

### Do Block or Tetra have ads?

Block shows ads; Tetra does not.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*