# 3D PDF Viewer vs PDF Gear

The clearest difference is review sentiment: PDF Gear at 85% against 3D PDF Viewer's 0%. PDF Gear also leads on rating (4.7 vs 1.5) and update cadence (monthly vs every 10 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PDF Gear holds the better App Store score, 4.7 against 1.5. That said, the two scores are not equally well evidenced: PDF Gear has 8.6K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of 3D PDF Viewer's written reviews are positive against 85% of PDF Gear's.

3D PDF Viewer ships an update every 10 months, PDF Gear monthly. The most recent releases landed on June 4, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | 3D PDF Viewer | PDF Gear |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (2 ratings)](https://appshunter.io/ios/app/3d-pdf-viewer/id919857557/reviews) | **[4.7 (8.6K ratings)](https://appshunter.io/ios/app/pdf-gear-pdf-editor-and-reader/id6465897558/reviews)** |
| Number of ratings | 2 | **8.6K** |
| Positive reviews | 0.0% of reviews | **85.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Monthly** |
| Monetization | Free | Free |
| Size | 21 MB | 46 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ProtoTech Solutions and Services Pvt. Ltd.](https://appshunter.io/developer/365252924) | [PDF GEAR TECH PTE. LTD.](https://appshunter.io/developer/1700412852) |

## What reviewers say

### 3D PDF Viewer

[App page](https://appshunter.io/ios/app/3d-pdf-viewer/id919857557)

View and interact with 3D models embedded in PDF files on your mobile device. Easily zoom, pan, and rotate models using intuitive multi-touch gestures. Load files directly from cloud storage services like Dropbox and Google Drive.

**Highlights:** 3D PDF model rendering (.prc), Multi-touch gestures (zoom, pan, rotate), Import from cloud storage, Open password-protected PDFs, Integrated Box and Dropbox browsing, Supports meshes and colors

**In-app purchases:** none


### PDF Gear

[App page](https://appshunter.io/ios/app/pdf-gear-pdf-editor-and-reader/id6465897558)

This app offers a comprehensive suite of tools for managing PDF documents on mobile devices. Users can easily view, annotate, edit pages, fill out forms, and digitally sign documents. It provides a free and unlimited experience for all its powerful PDF manipulation features.

**Highlights:** View and print PDFs, Annotate with highlights, text, and drawings, Organize pages (add, delete, rotate, extract), Fill out forms and sign documents, Manage PDF files (duplicate, rename, move, share), Open and save to device & iCloud

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Simplicity and reliability
- 👍 Straightforward and easy to learn
- 👍 Intuitive and user-friendly interface
- 👍 Excellent PDF handling capabilities
- 🚀 Efficient and fast processing

**What reviewers complain about**

- 🐛 Occasional crashes or corrupted files
- 🐛 Limited functionality on iOS devices
- 🐛 Unreliable auto-save and undo/redo features
- 🐛 Inability to edit password-protected PDFs
- 🐛 Annoying popups and requests for reviews

**Reported bugs**

- Crashes when opening certain PDF files
- Inability to edit text in forms on iPad
- Corrupted PDFs after repeated editing and saving

**Requested features**

- Add password protection and encryption
- Improve undo/redo functionality
- Enhance text editing capabilities
- Implement better auto-save and file recovery
- Provide more customization options


## Frequently asked questions

### Is 3D PDF Viewer free?

3D PDF Viewer is free to download, with no in-app purchases.

### Is PDF Gear free?

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

### Which has better reviews, 3D PDF Viewer or PDF Gear?

PDF Gear is rated higher. 3D PDF Viewer averages 1.5 out of 5 from 2 ratings, while PDF Gear averages 4.7 from 8.6K ratings.

### Do 3D PDF Viewer or PDF Gear have ads?

Neither 3D PDF Viewer nor PDF Gear shows ads.

### Which is updated more often, 3D PDF Viewer or PDF Gear?

3D PDF Viewer ships an update every 10 months, and PDF Gear monthly. Most recently, 3D PDF Viewer was updated on June 4, 2026 and PDF Gear on September 25, 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.*