# Gaia vs STEP Viewer

The clearest difference is update cadence: STEP Viewer at every 5 days against Gaia's every 3 months. STEP Viewer also leads on iOS requirement (13.0 vs 16.6). 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.

Gaia ships an update every 3 months, STEP Viewer every 5 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Gaia | STEP Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/step-viewer/id6756539299/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | — | Free |
| Size | 3 MB | 61 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [alfaTKG Integrated Solutions India Private Ltd](https://appshunter.io/developer/1278827007) | [Smart Cube Labs Co., Ltd.](https://appshunter.io/developer/1456342688) |

## What reviewers say

### Gaia

[App page](https://appshunter.io/ios/app/gaia-scheduler/id1400650866)

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

**In-app purchases:** none


### STEP Viewer

[App page](https://appshunter.io/ios/app/step-viewer/id6756539299)

View and interact with 3D CAD files directly on your mobile device. Measure dimensions, rotate, zoom, and save models in a common format without needing desktop software.

**Highlights:** Open STEP files from file manager, 3D model measurement tools, Six fixed views, Pinch to zoom, pan, and rotate, Save as GLB, Progress indicator for large files, Multilingual support

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

**In-app purchases:** none


## Frequently asked questions

### Is Gaia free?

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

### Is STEP Viewer free?

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

### Do Gaia or STEP Viewer have ads?

Neither Gaia nor STEP Viewer shows ads.

### Which is updated more often, Gaia or STEP Viewer?

Gaia ships an update every 3 months, and STEP Viewer every 5 days. Most recently, Gaia was updated on October 24, 2026 and STEP Viewer on October 28, 2026.

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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.*