# Prism Lab vs Visual Basic (VB.NET) Compiler

Prism Lab and Visual Basic (VB.NET) Compiler both sit at 3.3 stars, but that hides the real split: 80% of Prism Lab's written reviews are positive against 20% of Visual Basic (VB.NET) Compiler's. Prism Lab also leads on in-app purchases (none vs 1) and ads (none vs shown). Visual Basic (VB.NET) Compiler's advantage is update cadence (every 2 months vs every 216 months) and iOS requirement (12.0 vs 17.0). On price, rating and device support there is nothing between them.

Both are free to download. Visual Basic (VB.NET) Compiler sells 1 one-off in-app purchase. Prism Lab asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 3.3 for Prism Lab against 3.4 for Visual Basic (VB.NET) Compiler. That said, the two scores are not equally well evidenced: Prism Lab has 287 ratings behind it against 11, so its average is the more settled of the two. Written reviews are what separate them: 80% of Prism Lab's written reviews are positive against 20% of Visual Basic (VB.NET) Compiler's.

Prism Lab ships an update every 216 months, Visual Basic (VB.NET) Compiler every 2 months. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Prism Lab | Visual Basic (VB.NET) Compiler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (287 ratings)](https://appshunter.io/ios/app/prism-lab/id301875263/reviews) | **[3.4 (11 ratings)](https://appshunter.io/ios/app/visual-basic-vbnet-compiler/id1451474197/reviews)** |
| Number of ratings | **287** | 11 |
| Positive reviews | **80.0% of reviews** | 20.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 216 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 2 MB | 20 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [KZ Labs](https://appshunter.io/developer/1091008972) | [Ketan Appa](https://appshunter.io/developer/576435759) |

## What reviewers say

### Prism Lab

[App page](https://appshunter.io/ios/app/prism-lab/id301875263)

This application simulates lasers passing through prisms, demonstrating light refraction and reflection using Snell's Law. Users can adjust light sources, materials, and prism shapes to observe how light's trajectory changes between environments. It's a practical tool for understanding optical principles.

**Highlights:** Laser refraction simulation, Snell's Law implementation, Adjustable light source, Variable prism shapes, Different material options, Angle calculation

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

**In-app purchases:** none


### Visual Basic (VB.NET) Compiler

[App page](https://appshunter.io/ios/app/visual-basic-vbnet-compiler/id1451474197)

Write and execute VB.NET code on your mobile device. Ideal for learning and testing code snippets with features like syntax highlighting and a custom keyboard. Requires an internet connection for compilation.

**Highlights:** Compile and run VB.NET programs, View program output and errors, Custom keyboard for special characters, Advanced source code editor, Syntax highlighting and line numbers, Import, export, and share files

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade | $2.99 | one-time |


## Frequently asked questions

### Is Prism Lab free?

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

### Is Visual Basic (VB.NET) Compiler free?

Visual Basic (VB.NET) Compiler is free to download, with in-app purchases available.

### Which has better reviews, Prism Lab or Visual Basic (VB.NET) Compiler?

Visual Basic (VB.NET) Compiler is rated higher. Prism Lab averages 3.3 out of 5 from 287 ratings, while Visual Basic (VB.NET) Compiler averages 3.4 from 11 ratings.

### Do Prism Lab or Visual Basic (VB.NET) Compiler have ads?

Visual Basic (VB.NET) Compiler shows ads; Prism Lab does not.

### Which is updated more often, Prism Lab or Visual Basic (VB.NET) Compiler?

Prism Lab ships an update every 216 months, and Visual Basic (VB.NET) Compiler every 2 months. Most recently, Prism Lab was updated on October 23, 2026 and Visual Basic (VB.NET) Compiler on October 25, 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.*