# 3D File Viewer vs CodePin

The clearest difference is review sentiment: CodePin at 100% against 3D File Viewer's 33%. CodePin also leads on rating (5.0 vs 4.5) and update cadence (every 9 days vs every 3 weeks). 3D File Viewer's advantage is ratings volume (48 vs 1) and iOS requirement (16.6 vs 18.6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. 3D File Viewer sells 4 in-app purchases, starting at $3.99 per month and CodePin sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

CodePin holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: 3D File Viewer has 48 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 33% of 3D File Viewer's written reviews are positive against 100% of CodePin's.

3D File Viewer ships an update every 3 weeks, CodePin every 9 days. The most recent releases landed on October 14, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | 3D File Viewer | CodePin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (48 ratings)](https://appshunter.io/ios/app/3d-file-viewer-obj-stp-and-more/id6745021064/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/codepin/id6763878476/reviews)** |
| Number of ratings | **48** | 1 |
| Positive reviews | 33.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 11 MB | 3 MB |
| Requires iOS | **16.6** | 18.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Andeesh Mehdi Syed](https://appshunter.io/developer/1676226599) | [甲琦 郭](https://appshunter.io/developer/1888952386) |

## What reviewers say

### 3D File Viewer

[App page](https://appshunter.io/ios/app/3d-file-viewer-obj-stp-and-more/id6745021064)

Easily open and explore 3D model files on your iPhone or iPad. Supports over 20 popular formats, offering smooth viewing with intuitive touch controls. Ideal for designers, engineers, architects, and students working with 3D data.

**Highlights:** Supports over 20 3D file formats, Fast and smooth 3D file viewing, Zoom, rotate, and pan with touch controls, Open files from Files app or other apps, Lightweight and easy to use, No account required

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads - Monthly | $3.99 | per month |
| Remove Ads - Annual | $29.99 | per year |
| Remove Ads - Lifetime | $29.99 | one-time |
| Remove Ads | $29.99 | one-time |


### CodePin

[App page](https://appshunter.io/ios/app/codepin/id6763878476)

Easily create and scan QR codes and barcodes for various content types, including links, Wi-Fi, and contact information. Customize your codes with colors and icons, and pin them to your Lock Screen for quick access. Save and manage your scanned history.

**Highlights:** Create QR codes for text, links, Wi-Fi, email, phone, and vCards, Generate common barcodes (Code 128, EAN, UPC, Code 39, PDF417), Scan codes from camera or photos, Customize code colors, error correction, and center icons, Pin codes to Lock Screen and Dynamic Island with Live Activity, Save and manage scan history, Export codes as PNG and SVG files (Pro feature)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CodePin Pro Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is 3D File Viewer free?

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

### Is CodePin free?

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

### Which has better reviews, 3D File Viewer or CodePin?

CodePin is rated higher. 3D File Viewer averages 4.5 out of 5 from 48 ratings, while CodePin averages 5.0 from 1 ratings.

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

Neither 3D File Viewer nor CodePin shows ads.

### Which is updated more often, 3D File Viewer or CodePin?

3D File Viewer ships an update every 3 weeks, and CodePin every 9 days. Most recently, 3D File Viewer was updated on October 14, 2026 and CodePin on October 1, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*