# STL Master vs 3D Printer Cost Calculator

The clearest difference is in-app purchases: STL Master at none against 3D Printer Cost Calculator's 4. STL Master also leads on ratings volume (51 vs 7). 3D Printer Cost Calculator's advantage is update cadence (weekly vs monthly). On price, rating, ads and device support there is nothing between them.

Both are free to download. 3D Printer Cost Calculator sells 4 in-app purchases, starting at $0.99 per month. STL Master asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.2 for STL Master against 4.1 for 3D Printer Cost Calculator. That said, the two scores are not equally well evidenced: STL Master has 51 ratings behind it against 7, so its average is the more settled of the two.

STL Master ships an update monthly, 3D Printer Cost Calculator weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | STL Master | 3D Printer Cost Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (51 ratings)](https://appshunter.io/ios/app/stl-master/id1435885139/reviews)** | [4.1 (7 ratings)](https://appshunter.io/ios/app/3d-printer-cost-calculator/id6444106268/reviews) |
| Number of ratings | **51** | 7 |
| Positive reviews | 86.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | **Free** | Freemium |
| Size | 68 MB | 87 MB |
| Requires iOS | **14.1** | 15.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [JA Logic Labs LLC](https://appshunter.io/developer/1745984849) | [Reme Le Hane](https://appshunter.io/developer/1652274005) |

## 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


### 3D Printer Cost Calculator

[App page](https://appshunter.io/ios/app/3d-printer-cost-calculator/id6444106268)

Calculate the true cost of 3D prints by factoring in filament, electricity, labor, and overhead. Offers both free and premium features for hobbyists and businesses, with a strong focus on privacy and offline functionality.

**Highlights:** Filament cost calculation, Electricity cost integration, Printer power usage modeling, Material stock tracking, Client-ready pricing, Labour cost and processing time, Export data (CSV)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Montlhy | $0.99 | per month |
| Quarterly | $4.99 | per 3 months |
| Annual Subscription | $9.99 | per year |
| Lifetime Access | $29.99 | one-time |


## Frequently asked questions

### Is STL Master free?

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

### Is 3D Printer Cost Calculator free?

3D Printer Cost Calculator is free to download, with in-app purchases available.

### Which has better reviews, STL Master or 3D Printer Cost Calculator?

STL Master is rated higher. STL Master averages 4.2 out of 5 from 51 ratings, while 3D Printer Cost Calculator averages 4.1 from 7 ratings.

### Do STL Master or 3D Printer Cost Calculator have ads?

Neither STL Master nor 3D Printer Cost Calculator shows ads.

### Which is updated more often, STL Master or 3D Printer Cost Calculator?

STL Master ships an update monthly, and 3D Printer Cost Calculator weekly. Most recently, STL Master was updated on October 24, 2026 and 3D Printer Cost Calculator on October 24, 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.*