# Helix Pro vs G.I.S. Strong

The clearest difference is device support: Helix Pro at 3 against G.I.S. Strong's 1. Helix Pro also leads on iOS requirement (11.0 vs 18.6). On price, ads and in-app purchases 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 | Helix Pro | G.I.S. Strong |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Size | 123 MB | 172 MB |
| Requires iOS | **11.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Amcrest](https://appshunter.io/developer/930807300) | [Refresh Software, INC](https://appshunter.io/developer/874317690) |

## What reviewers say

### Helix Pro

[App page](https://appshunter.io/ios/app/helix-pro/id6529524530)

**Features:** macOS Compatibility

**In-app purchases:** none


### G.I.S. Strong

[App page](https://appshunter.io/ios/app/gis-strong/id6743140239)

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

**In-app purchases:** none


## Frequently asked questions

### Is Helix Pro free?

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

### Is G.I.S. Strong free?

G.I.S. Strong is free to download, with no in-app purchases.

### Do Helix Pro or G.I.S. Strong have ads?

Neither Helix Pro nor G.I.S. Strong 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.*