# STL Viewer vs Mind Map

The clearest difference is review sentiment: STL Viewer at 100% against Mind Map's 0%. STL Viewer also leads on price ($0.99 vs $1.99). Mind Map's advantage is in-app purchases (none vs 5) and iOS requirement (13.0 vs 17.0). On update cadence, ads, monetization model and device support there is nothing between them.

STL Viewer costs $0.99 and Mind Map $1.99 up front. STL Viewer sells 5 in-app purchases, starting at $2.99 per month. Mind Map asks for nothing beyond the download.

STL Viewer ships an update every 4 weeks, Mind Map monthly. The most recent releases landed on November 12, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | STL Viewer | Mind Map |
| --- | --- | --- |
| Price | **$0.99** | $1.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/stl-viewer-3d-mesh/id6445801487/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Monthly |
| Monetization | Paid | Paid |
| Size | 5 MB | 24 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Felipe Marques de Barros](https://appshunter.io/developer/1459294806) | [Xiamen City Fanyou Network Technology Co., Ltd.](https://appshunter.io/developer/1842524161) |

## What reviewers say

### STL Viewer

[App page](https://appshunter.io/ios/app/stl-viewer-3d-mesh/id6445801487)

View, explore, and edit 3D models on your iPhone or iPad. Basic viewing is included with purchase, with optional upgrades for advanced creation, editing, and reporting features. Models are processed locally for privacy.

**Highlights:** Open and view STL files, Rotate, pan, and zoom models, Basic model information inspection, Create and edit 3D models, Measure distances and angles, Export to multiple file formats, Generate local PDF reports

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| STL Viewer Pro Mensal | $2.99 | per month |
| STL Viewer Studio Mensal | $5.99 | per month |
| STL Viewer Pro Anual | $22.99 | per year |
| STL Viewer Studio Anual | $49.99 | per year |
| STL Viewer Pro Vitalício | $39.99 | one-time |


### Mind Map

[App page](https://appshunter.io/ios/app/mind-map-brainstorm-outline/id6767079824)

Visually organize your thoughts and plans with a variety of professional diagram styles. This tool offers templates and a blank canvas for brainstorming, project planning, and note-taking, all without needing an account. Your work is stored locally for privacy and offline access.

**Highlights:** Eight diagram types, Template library, My Maps hub, Offline-first functionality, Clean interface, No account required

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

**In-app purchases:** none


## Frequently asked questions

### Is STL Viewer free?

STL Viewer costs $0.99, and also offers in-app purchases.

### Is Mind Map free?

Mind Map costs $1.99, with no in-app purchases.

### Do STL Viewer or Mind Map have ads?

Neither STL Viewer nor Mind Map shows ads.

### Which is updated more often, STL Viewer or Mind Map?

STL Viewer ships an update every 4 weeks, and Mind Map monthly. Most recently, STL Viewer was updated on November 12, 2026 and Mind Map on October 31, 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.*