# AIRSTEP Cortex vs GTRS Cloud

The clearest difference is update cadence: GTRS Cloud at every 2 weeks against AIRSTEP Cortex's every 2 months. AIRSTEP Cortex's advantage is iOS requirement (13.0 vs 15.0). 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.

AIRSTEP Cortex ships an update every 2 months, GTRS Cloud every 2 weeks. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | AIRSTEP Cortex | GTRS Cloud |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 22 MB | 262 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [XSONIC Inc.](https://appshunter.io/developer/1487765084) | [mooer](https://appshunter.io/developer/1384361853) |

## What reviewers say

### AIRSTEP Cortex

[App page](https://appshunter.io/ios/app/airstep-cortex/id6754727002)

**Features:** macOS Compatibility

**In-app purchases:** none


### GTRS Cloud

[App page](https://appshunter.io/ios/app/gtrs-cloud/id6780415337)

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

**In-app purchases:** none


## Frequently asked questions

### Is AIRSTEP Cortex free?

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

### Is GTRS Cloud free?

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

### Do AIRSTEP Cortex or GTRS Cloud have ads?

Neither AIRSTEP Cortex nor GTRS Cloud shows ads.

### Which is updated more often, AIRSTEP Cortex or GTRS Cloud?

AIRSTEP Cortex ships an update every 2 months, and GTRS Cloud every 2 weeks. Most recently, AIRSTEP Cortex was updated on October 30, 2026 and GTRS Cloud on November 5, 2026.

---

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