# Onshape 3D CAD vs Full Screen Viewer

The clearest difference is in-app purchases: Onshape 3D CAD at none against Full Screen Viewer's 4. Onshape 3D CAD also leads on ads (none vs shown) and ratings volume (417 vs 3). Full Screen Viewer's advantage is iOS requirement (13.0 vs 18.0). On price, rating, update cadence and monetization model there is nothing between them.

Both are free to download. Full Screen Viewer sells 4 in-app purchases, starting at $1.99 per month. Onshape 3D CAD asks for nothing beyond the download.

Full Screen Viewer holds the better App Store score, 3.7 against 3.5. That said, the two scores are not equally well evidenced: Onshape 3D CAD has 417 ratings behind it against 3, so its average is the more settled of the two.

Onshape 3D CAD ships an update every 3 weeks, Full Screen Viewer fortnightly. The most recent releases landed on November 1, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Onshape 3D CAD | Full Screen Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (417 ratings)](https://appshunter.io/ios/app/onshape-3d-cad/id923421284/reviews) | **[3.7 (3 ratings)](https://appshunter.io/ios/app/full-screen-viewer/id1520967271/reviews)** |
| Number of ratings | **417** | 3 |
| Positive reviews | 47.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 77 MB | 31 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [PTC Inc.](https://appshunter.io/developer/501201404) | [Akane Tominaga](https://appshunter.io/developer/1520967273) |

## What reviewers say

### Onshape 3D CAD

[App page](https://appshunter.io/ios/app/onshape-3d-cad/id923421284)

This professional CAD platform enables real-time collaboration on product design from any device. It offers parametric modeling tools, secure cloud storage, and version control, streamlining the design process for teams and individuals. Supports students and educators with free access for non-commercial projects.

**Highlights:** Parametric modeling tools, Real-time team collaboration, Cloud-based data management, Cross-device access, Version control and history, Commenting and feedback tools

**In-app purchases:** none

**What reviewers like**

- 🚀 Powerful CAD features
- 🌐 Accessible from any device
- 👍 Intuitive interface
- 💡 Great for on-site work
- 🌟 Exceptional for a free app

**What reviewers complain about**

- 🐛 Crashes and stability issues
- 👎 Unintuitive and clunky UI
- 🔒 Requires account sign-up
- 💰 Expensive paid plans
- 🔍 Difficult to find/use key features

**Reported bugs**

- Frequent crashes and freezes
- Dimensions not visible/editable
- Rotation/view controls unreliable
- Unable to create account
- Incompatible with older devices

**Requested features**

- Add keyboard shortcuts
- Improve dimensioning tools
- Allow private file storage
- Optimize for iPad/Apple Pencil
- Provide better documentation/tutorials


### Full Screen Viewer

[App page](https://appshunter.io/ios/app/full-screen-viewer/id1520967271)

View PDF files and various image formats on your smartphone or tablet with a focus on essential functions for workplace efficiency. Offers smooth operation, one-handed use, and powerful magnification for detailed viewing of blueprints, documents, and photos.

**Highlights:** Full screen display, One-handed operation, View PDF and image files, Magnify up to 100x, Smooth zoom and page switching, Read files from various locations, File management and history

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One month subscription | $1.99 | per month |
| PRO version (Monthly) | $1.99 | per month |
| One year subscription | $22.49 | per year |
| PRO version (Yearly) | $22.49 | per year |


## Frequently asked questions

### Is Onshape 3D CAD free?

Onshape 3D CAD is free to download, with no in-app purchases.

### Is Full Screen Viewer free?

Full Screen Viewer is free to download, with in-app purchases available.

### Which has better reviews, Onshape 3D CAD or Full Screen Viewer?

Full Screen Viewer is rated higher. Onshape 3D CAD averages 3.5 out of 5 from 417 ratings, while Full Screen Viewer averages 3.7 from 3 ratings.

### Do Onshape 3D CAD or Full Screen Viewer have ads?

Full Screen Viewer shows ads; Onshape 3D CAD does not.

### Which is updated more often, Onshape 3D CAD or Full Screen Viewer?

Onshape 3D CAD ships an update every 3 weeks, and Full Screen Viewer fortnightly. Most recently, Onshape 3D CAD was updated on November 1, 2026 and Full Screen Viewer on October 21, 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.*