# One vs 3D File Viewer

One and 3D File Viewer are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. One sells 4 one-off in-app purchases and 3D File Viewer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | One | 3D File Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/3d-file-viewer-printpeek/id6773097802/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 5 weeks |
| Monetization | — | Freemium |
| Size | 35 MB | 11 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 12+ | 4+ |
| Developer | [PWZ COM CORP](https://appshunter.io/developer/1883572739) | [Jean Papke](https://appshunter.io/developer/1697093770) |

## What reviewers say

### One

[App page](https://appshunter.io/ios/app/one-ai/id6761099079)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter | $9.90 | one-time |
| Basic | $29.90 | one-time |
| Plus | $49.90 | one-time |
| Professional | $99.90 | one-time |


### 3D File Viewer

[App page](https://appshunter.io/ios/app/3d-file-viewer-printpeek/id6773097802)

Quickly view and inspect 3D model files like STL, OBJ, and PLY. Offers a clean preview with gesture controls and detailed model information. Export images or different mesh formats for sharing.

**Highlights:** Preview STL, OBJ, 3MF, PLY, and ZIP files, Rotate, move, and scale models, Solid, edge, and transparent display modes, View presets (front, top, side, isometric), Check model details (bounds, face count, volume), Export PNG, OBJ, DAE, and DXF files

**Features:** iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PrintPeek Pro | $3.99 | one-time |


## Frequently asked questions

### Is One free?

One is free to download, with in-app purchases available.

### Is 3D File Viewer free?

3D File Viewer is free to download, with in-app purchases available.

### Do One or 3D File Viewer have ads?

Neither One nor 3D File Viewer shows ads.

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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.*