# STEP Viewer vs Deefoc

The clearest difference is update cadence: STEP Viewer at every 5 days against Deefoc's every 2 weeks. STEP Viewer also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.0). 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.

STEP Viewer ships an update every 5 days, Deefoc every 2 weeks. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | STEP Viewer | Deefoc |
| --- | --- | --- |
| 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 5 days** | Every 2 weeks |
| Size | 61 MB | 1 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Smart Cube Labs Co., Ltd.](https://appshunter.io/developer/1456342688) | [UBQ Inc.](https://appshunter.io/developer/6791005356) |

## What reviewers say

### STEP Viewer

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

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

**In-app purchases:** none


### Deefoc

[App page](https://appshunter.io/ios/app/deefoc/id6791121274)

**In-app purchases:** none


## Frequently asked questions

### Is STEP Viewer free?

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

### Is Deefoc free?

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

### Do STEP Viewer or Deefoc have ads?

Neither STEP Viewer nor Deefoc shows ads.

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

STEP Viewer ships an update every 5 days, and Deefoc every 2 weeks. Most recently, STEP Viewer was updated on October 24, 2026 and Deefoc on October 11, 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.*