# STL Master vs Chop

The clearest difference is review sentiment: Chop at 100% against STL Master's 86%. STL Master's advantage is device support (4 vs 1) and iOS requirement (14.1 vs 16.6). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | STL Master | Chop |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (49 ratings)](https://appshunter.io/ios/app/stl-master/id1435885139/reviews)** | — |
| Number of ratings | **49** | — |
| Positive reviews | 86.1% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Free | Free |
| Size | 68 MB | 7 MB |
| Requires iOS | **14.1** | 16.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [JA Logic Labs LLC](https://appshunter.io/developer/1745984849) | [Samuel Hepburn](https://appshunter.io/developer/1603483375) |

## What reviewers say

### STL Master

[App page](https://appshunter.io/ios/app/stl-master/id1435885139)

View and interact with 3D models in augmented reality. Share instant screenshots and screen recordings of your designs directly from the app.

**Highlights:** STL file viewing, Augmented reality (AR) mode, Instant screenshots, Screen recording, Design sharing

**In-app purchases:** none

**What reviewers like**

- 🚀 Fast and smooth rendering performance
- 💰 Completely free with no ads or trackers
- 🎨 High-quality rendering and visualization
- 📱 Works well on mobile devices (iPhone, iPad)
- 🌐 AR (Augmented Reality) feature

**What reviewers complain about**

- 🐛 Frequent crashes and freezing
- 🖱️ Difficult object manipulation and navigation
- 🔍 Zoom limitations (hard to zoom out/in)
- ❌ Inconsistent file loading and orientation
- 🎨 Overly shiny/metallic default appearance

**Reported bugs**

- App crashes immediately on launch
- Files won't open or load
- Objects disappear when moved
- Inconsistent file orientation on load
- Markup mode traps user and requires app restart

**Requested features**

- More color and material options
- Unit measurement display and metric/standard conversion
- How-to video tutorials for hidden features
- Proper zoom in/out controls
- Object positioning/movement button


### Chop

[App page](https://appshunter.io/ios/app/chop/id1603483373)

Plan your weekly meals and automatically generate a shopping list. Easily add or remove items, and share your meal plans with others. Supports SFTP for menu and shopping list uploads/downloads.

**Highlights:** Create meal lists with required ingredients, Generate shopping lists from meal plans, Delete items already in stock, Share meal lists with others, SFTP upload/download for menus and shopping lists

**In-app purchases:** none


## Frequently asked questions

### Is STL Master free?

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

### Is Chop free?

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

### Do STL Master or Chop have ads?

Neither STL Master nor Chop shows ads.

### Which is updated more often, STL Master or Chop?

STL Master ships an update monthly, and Chop monthly. Most recently, STL Master was updated on October 5, 2026 and Chop on October 7, 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.*