# Seatechnology vs STEP Viewer

The clearest difference is update cadence: STEP Viewer at every 5 days against Seatechnology's every 12 months. STEP Viewer also leads on iOS requirement (13.0 vs 15.6). 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.

Seatechnology ships an update every 12 months, STEP Viewer every 5 days. The most recent releases landed on September 13, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Seatechnology | STEP Viewer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 5 days** |
| Size | 27 MB | 61 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Uplink Web Agency S.r.l.](https://appshunter.io/developer/492672533) | [Smart Cube Labs Co., Ltd.](https://appshunter.io/developer/1456342688) |

## What reviewers say

### Seatechnology

[App page](https://appshunter.io/ios/app/seatechnology/id1612219530)

**Features:** macOS Compatibility

**In-app purchases:** none


### STEP Viewer

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

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

**In-app purchases:** none


## Frequently asked questions

### Is Seatechnology free?

Seatechnology 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 Seatechnology or STEP Viewer have ads?

Neither Seatechnology nor STEP Viewer shows ads.

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

Seatechnology ships an update every 12 months, and STEP Viewer every 5 days. Most recently, Seatechnology was updated on September 13, 2026 and STEP Viewer on October 4, 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.*