# 3D & STL Model Viewer - Mes3D — Supports STEP, GLB, OBJ, glTF

> Fast, lightweight 3D model viewer for common mesh-based file formats. (iPhone/iPad app by ONNEX YAZILIM ANONIM SIRKETI.)

- Source: https://appshunter.io/ios/app/3d-and-stl-model-viewer-mes3d/id6761634572 (this page in markdown: same URL + `.md`)
- Developer: [ONNEX YAZILIM ANONIM SIRKETI](https://appshunter.io/developer/1856674142)
- Category: Developer Tools, Utilities
- Price: Free with in-app purchases
- Rating: 4.63/5 from 19 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 59 MB
- Languages: American English, Arabic, Croatian, Czech, Danish, Dutch, Finnish, French (France), German (Germany), Greek and 22 more
- Released: 2026-04-18
- Data updated: 2026-10-25
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/3d-and-stl-model-viewer-mes3d/id6761634572/reviews.md

## What is 3D & STL Model Viewer?

Open and inspect STL, STEP, 3MF, OBJ and other 3D files right on your iPhone and iPad.

Mes3D is a fast 3D model viewer. Rotate, zoom, look inside with a section view, check dimensions and try edits for free. Mes3D Pro adds measuring, AR, full print analysis and export.

OPEN 3D FILES
- STL, STEP, STP, 3MF, OBJ, glTF, GLB, USDZ, USD, USDA, USDC, PLY, OFF, AMF, 3DS, DAE, 3DM, ABC and ZIP
- Open files from the Files app, cloud storage or other apps with Share / Open in
- Select an OBJ with its material and texture files, or open them as one ZIP, to keep colors and textures
- On iPad, drag and drop files into the app

VIEW AND NAVIGATE
- Rotate, pan and zoom with simple gestures
- One-tap front, back, left, right, top and bottom views
- Perspective or orthographic projection, wireframe and auto-rotate
- Original colors and textures, or preset model and background colors

DIMENSIONS AND UNITS
- Width, height and depth at a glance
- mm, cm, m or inches; set the file's units and get a hint when a file looks like it was saved in inches

SECTION VIEW
- Slide a cutting plane along X, Y or Z to see inside the model, and flip it to view the other side

EDIT TOOLS
- Resize to exact dimensions, rotate in 90° steps and cut with a plane, with the option to fill the cut surface
- Undo, redo or revert to the original
- Edits are free to try; exporting or saving the edited model requires Pro

MODEL ANALYSIS
- Volume, surface area, triangle count and a quick print-readiness check
- With Pro: estimated print weight (PLA, PETG, ABS, resin), wall thickness, overhang area, detailed checks for open edges, non-manifold edges, flipped normals and degenerate triangles, and color overlays that highlight issues on the model

LIBRARY
- Models you open are saved to your library with thumbnails
- Organize them into collections and sub-collections

PREVIEWS IN THE FILES APP
- See thumbnails of STL, 3MF, OBJ, PLY, OFF, glTF and GLB files in the Files app and preview them without opening Mes3D

SNAPSHOTS
- Save images of your model to Photos, copy or share them. Free snapshots include a Mes3D watermark.

MES3D PRO
- Point-to-point distance and angle measurement
- View models in AR at real-world scale on supported devices
- Full model analysis: weight, wall thickness, detailed printability checks and overlays
- Export edited models as STL, 3MF or OBJ, or save a copy to your library
- Unlimited library. The free version keeps up to 3 of your own models; the included sample models don't count.
- Custom model and background colors
- Watermark-free snapshots

You can try every Pro tool on the included sample models before you decide.

Mes3D Pro is available as an auto-renewing subscription or a one-time lifetime purchase. Available plans, prices and any free trial are shown in the app before you buy. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period; renewal is charged within the 24 hours before the period ends. You can manage or cancel your subscription in your App Store account settings.

PRIVACY
Your 3D files are opened and processed on your device. Mes3D does not upload your models. The app collects app usage and diagnostic data to improve Mes3D, as described in the Privacy Policy.

GOOD TO KNOW
- Mes3D displays models as meshes. Animations, advanced materials and complex scene hierarchies may not appear in full for every format.
- Measurements and analysis depend on the units and quality of the source file. Print weight is an estimate that assumes 100% infill.
- Available in 35 languages, with a language setting inside the app.

Terms of Use: https://www.notion.so/Mes3d-Terms-of-Use-33f686c61ac4802e8635e101e12ef136
Privacy Policy: https://www.notion.so/Mes3d-Privacy-Policy-33f686c61ac480a4ac4edf69c42488d9

## Key features

- Import 3D files (STL, GLB, OBJ, USDZ, etc.)
- Intuitive touch controls for rotation, pan, zoom
- Mesh-based preview and rendering
- Wireframe mode and background customization
- Local model library
- Snapshot export
- AR View integration

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Mes3D PRO Annual Subscription | $14.99 | per year |
| Mes3D PRO Monthly Subscription | $5.99 | per month |
| Mes3D Weekly PRO | $4.99 | per 7 days |
| Mes3D Annual PRO High | $29.99 | per year |
| Mes3D Monthly PRO Subscription | $9.99 | per month |
| Mes3D Weekly PRO Subscription | $6.99 | per 7 days |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Mes3D Lifetime Premium | $49.99 | one-time |
| Lifetime Pro Mes3D | $29.99 | one-time |


## Chart rankings

- #102 in Top Free · Developer Tools (US App Store)
- #65 in Top Grossing · Developer Tools (US App Store)

## Is 3D & STL Model Viewer safe?

Not enough ratings yet to assess 3D & STL Model Viewer.

## Is 3D & STL Model Viewer legit?

3D & STL Model Viewer - Mes3D appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for 3D & STL Model Viewer is 75 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/3d-and-stl-model-viewer-mes3d/id6761634572/reviews.md

### 1/5 — Updated and now lifetime purchase is gone

*2026-08-15*

I updated this app to the current version, and now my lifetime purchase is no longer a thing, available. It is as if it disappeared into thin air. All of the functions that I paid for, before the update are now behind a subscription wall. Some might call this a rip off! Maybe some form of bait and switch. Unfortunately this has happened to me before on other apps, and has become a pattern for some time. If you, developers, are going to conduct business like this, at least have the dignity to warn the costumer before the update! Do you have any dignity?

**Developer response:** Hi,

We’re truly sorry for the issue and understand how frustrating this must be. Your lifetime purchase should not simply disappear.

Please try tapping “Restore Purchase” on the paywall. This should restore your lifetime access.

If you still have any issues, please contact us through Settings → Support or email [yusuf@onnex.co] with your User ID. We’ll look into it and resolve the issue as quickly as possible.

We’re always here to support our users. Thank you for your patience, and we sincerely apologize again.

### 5/5 — Samuel

*2026-08-03*

Fellhauers

## Frequently asked questions about 3D & STL Model Viewer

### What 3D file formats does Mes3D support?

Mes3D supports a wide range of formats including STL, OBJ, glTF, GLB, USDZ, PLY, and 3MF. This allows for broad compatibility with common 3D modeling and design software.

### Can I view Mes3D models in augmented reality?

Yes, Mes3D offers an AR View feature that allows you to place compatible models in your real environment using AR Quick Look. This is ideal for visualizing designs in context.

### How does Mes3D handle user privacy?

All 3D model processing within Mes3D occurs locally on your device. No data is uploaded or shared externally, ensuring your files remain private.

### What are the basic controls for navigating 3D models in Mes3D?

Mes3D provides intuitive touch controls for rotating, panning, and zooming models. You can easily inspect your models from any angle with smooth gestures.

### Does Mes3D have ads?

Mes3D is ad-free. The app focuses on providing a clean and uninterrupted experience for viewing and inspecting 3D models.

### Is Mes3D available on multiple devices?

Currently, Mes3D is supported on iPhone devices. Future platform expansions may be considered based on user demand and development resources.

### How often is Mes3D updated?

The latest version of Mes3D is 1.3, last updated on June 16, 2026. Updates typically focus on improving performance, adding support for new formats, and enhancing existing features.

### What is the age rating for Mes3D?

Mes3D has an age rating of 4+. This indicates it is suitable for users of all ages, with no content restrictions.

## Version history (last 5 releases)

### 2.0.5 — 2026-10-22

Bug fixes and stability improvements

### 2.0.3 — 2026-10-12

Bug fixes and stability improvements

### 2.0.2 — 2026-10-01

Bug fixes and stability improvements

### 2.0.1 — 2026-09-29

Fehlerbehebungen und Stabilitätsverbesserungen

### 2.0.0 — 2026-09-19

Organizing your 3D models just got easier. Drag and drop models into collections to keep your library tidy.

## Apps similar to 3D & STL Model Viewer

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| --- | --- | --- | --- |
| [STL File Viewer Pro](https://appshunter.io/ios/app/stl-file-viewer-pro/id6741022143) | 4.5 (81) | Free | Developer Tools |
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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-25.*