# DyConcept® HoloViewer vs docustry

The clearest difference is update cadence: docustry at every 2 weeks against DyConcept® HoloViewer's every 2 months. DyConcept® HoloViewer's advantage is 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.

DyConcept® HoloViewer ships an update every 2 months, docustry every 2 weeks. The most recent releases landed on November 6, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | DyConcept® HoloViewer | docustry |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 305 MB | 24 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Kathrin Bertelmann](https://appshunter.io/developer/1455448435) | [endless webservices GmbH](https://appshunter.io/developer/1709291113) |

## What reviewers say

### DyConcept® HoloViewer

[App page](https://appshunter.io/ios/app/dyconcept-holoviewer/id1455448766)

**Features:** macOS Compatibility

**In-app purchases:** none


### docustry

[App page](https://appshunter.io/ios/app/docustry/id6473211663)

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

**In-app purchases:** none


## Frequently asked questions

### Is DyConcept® HoloViewer free?

DyConcept® HoloViewer is free to download, with no in-app purchases.

### Is docustry free?

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

### Do DyConcept® HoloViewer or docustry have ads?

Neither DyConcept® HoloViewer nor docustry shows ads.

### Which is updated more often, DyConcept® HoloViewer or docustry?

DyConcept® HoloViewer ships an update every 2 months, and docustry every 2 weeks. Most recently, DyConcept® HoloViewer was updated on November 6, 2026 and docustry on November 8, 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.*