# Forma3D vs Open3D

The clearest difference is in-app purchases: Open3D at none against Forma3D's 3. Open3D also leads on rating (4.7 vs 4.4) and ratings volume (29 vs 7). Forma3D's advantage is ads (none vs shown). On price, review sentiment, update cadence and device support there is nothing between them.

Both are free to download. Forma3D sells 3 in-app purchases, starting at $6.99 per month. Open3D asks for nothing beyond the download.

Open3D holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 7 and 29 respectively. Written reviews point the same way: 83% of Forma3D's written reviews are positive against 88% of Open3D's.

Forma3D ships an update every 3 days, Open3D every 2 days. The most recent releases landed on November 13, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | Forma3D | Open3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (7 ratings)](https://appshunter.io/ios/app/forma3d-3d-modeling-and-print/id6762095429/reviews) | **[4.7 (29 ratings)](https://appshunter.io/ios/app/open3d-stl-and-3d-model-viewer/id6772109964/reviews)** |
| Number of ratings | 7 | **29** |
| Positive reviews | 83.3% of reviews | **87.5% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 days | **Every 2 days** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 36 MB | 77 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | +4 |
| Developer | [Denis Vazyulya](https://appshunter.io/developer/1892873021) | [Rajesh Konatala](https://appshunter.io/developer/1882436576) |

## What reviewers say

### Forma3D

[App page](https://appshunter.io/ios/app/forma3d-3d-modeling-and-print/id6762095429)

Create, edit, and repair 3D models directly on your iPhone or iPad. Features include sculpting, sketching, painting, and splitting meshes for printing. Supports a wide range of import/export formats and offline use.

**Highlights:** Sculpting with gesture-based brushes, Sketching and SVG import to 3D, Per-face color painting for 3MF export, Lithophane generator from photos, Splitting meshes with integrated joints, Extensive mesh editing tools, 3D scanning with LiDAR

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Forma3D subscription | $6.99 | per month |
| Forma3D - Year | $49.99 | per year |
| Lifetime access to Forma3D | $99.99 | one-time |


### Open3D

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

View and edit a wide range of 3D model file formats directly on your device. Inspect models for 3D printing, convert between formats, and even view them in augmented reality. All processing is done locally, ensuring your files remain private.

**Highlights:** Supports over 15 3D file formats, On-device AR viewing with Quick Look, 3D printing readiness checks, Model conversion and export, Offline functionality, Local file processing, no cloud upload

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

**In-app purchases:** none


## Frequently asked questions

### Is Forma3D free?

Forma3D is free to download, with in-app purchases available.

### Is Open3D free?

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

### Which has better reviews, Forma3D or Open3D?

Open3D is rated higher. Forma3D averages 4.4 out of 5 from 7 ratings, while Open3D averages 4.7 from 29 ratings.

### Do Forma3D or Open3D have ads?

Open3D shows ads; Forma3D does not.

### Which is updated more often, Forma3D or Open3D?

Forma3D ships an update every 3 days, and Open3D every 2 days. Most recently, Forma3D was updated on November 13, 2026 and Open3D on November 11, 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.*