# PicColla vs Open3D

The clearest difference is ads: PicColla at none against Open3D's shown. Open3D's advantage is update cadence (every 2 days vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

PicColla ships an update every 2 months, Open3D every 2 days. Both last shipped on October 8, 2026.

## The numbers

| Metric | PicColla | Open3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (18 ratings)](https://appshunter.io/ios/app/open3d-stl-and-3d-model-viewer/id6772109964/reviews)** |
| Number of ratings | — | **18** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | — | Ad-supported |
| Size | 3 MB | 77 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Numrise Limited](https://appshunter.io/developer/6776985297) | [Rajesh Konatala](https://appshunter.io/developer/1882436576) |

## What reviewers say

### PicColla

[App page](https://appshunter.io/ios/app/piccolla/id6748435489)

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

**In-app purchases:** none


### Open3D

[App page](https://appshunter.io/ios/app/open3d-stl-and-3d-model-viewer/id6772109964)

Instantly view and inspect a wide range of 3D file formats directly on your device. Offers AR viewing, 3D printing readiness checks, and detailed model specifications without requiring an account or cloud upload.

**Highlights:** Supports over 15 3D file formats, Augmented Reality (AR) viewing via Apple Quick Look, 3D printing readiness checks (manifold, overhangs, wall thickness), On-device processing, no cloud upload required, Detailed model specifications (triangle count, bounding box), Export between GLB and STL formats, Offline functionality

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

**In-app purchases:** none


## Frequently asked questions

### Is PicColla free?

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

### Is Open3D free?

Open3D is free to download, with no in-app purchases.

### Do PicColla or Open3D have ads?

Open3D shows ads; PicColla does not.

### Which is updated more often, PicColla or Open3D?

PicColla ships an update every 2 months, and Open3D every 2 days. Most recently, PicColla was updated on October 8, 2026 and Open3D on October 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.*