# Hex Trace Protocol vs Gridlock

The clearest difference is iOS requirement: Gridlock at 13.0 against Hex Trace Protocol's 15. On price, ads, in-app purchases and device support 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 | Hex Trace Protocol | Gridlock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Size | 8 MB | 22 MB |
| Requires iOS | 15 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Albertine Reid](https://appshunter.io/developer/1889075416) | [ONURCAN ISIK](https://appshunter.io/developer/1886727586) |

## What reviewers say

### Hex Trace Protocol

[App page](https://appshunter.io/ios/app/hex-trace-protocol/id6761351587)

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

**In-app purchases:** none


### Gridlock

[App page](https://appshunter.io/ios/app/gridlock-pattern-memory/id6768774233)

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

**In-app purchases:** none


## Frequently asked questions

### Is Hex Trace Protocol free?

Hex Trace Protocol is free to download, with no in-app purchases.

### Is Gridlock free?

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

### Do Hex Trace Protocol or Gridlock have ads?

Neither Hex Trace Protocol nor Gridlock 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.*