# VHDL Compiler vs Calcsharp Pro

The clearest difference is price: VHDL Compiler at Free against Calcsharp Pro's $1.99. VHDL Compiler also leads on iOS requirement (12.0 vs 16.0). Calcsharp Pro's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

VHDL Compiler is free to download; Calcsharp Pro costs $1.99 up front. VHDL Compiler sells 1 one-off in-app purchase. Calcsharp Pro asks for nothing beyond the download.

VHDL Compiler ships an update every 2 months, Calcsharp Pro every 2 days. The most recent releases landed on September 9, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | VHDL Compiler | Calcsharp Pro |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[2.7 (7 ratings)](https://appshunter.io/ios/app/vhdl-compiler/id1459379888/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 4 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Ketan Appa](https://appshunter.io/developer/576435759) | [Nikola Stepan](https://appshunter.io/developer/398370680) |

## What reviewers say

### VHDL Compiler

[App page](https://appshunter.io/ios/app/vhdl-compiler/id1459379888)

Write and test VHDL code on your mobile device. This application is designed for learning and executing VHDL snippets using the GHDL simulator. It offers a code editor with syntax highlighting and a custom keyboard for efficient input.

**Highlights:** Compile and run VHDL programs, View program output and errors, Custom keyboard for VHDL characters, Advanced source code editor, Syntax highlighting and line numbers, Import, open, save, and share files

**Features:** Vision Pro support

**In-app purchases (1)**

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


### Calcsharp Pro

[App page](https://appshunter.io/ios/app/calcsharp-pro/id1644401194)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is VHDL Compiler free?

VHDL Compiler is free to download, with in-app purchases available.

### Is Calcsharp Pro free?

Calcsharp Pro costs $1.99, with no in-app purchases.

### Do VHDL Compiler or Calcsharp Pro have ads?

VHDL Compiler shows ads; Calcsharp Pro does not.

### Which is updated more often, VHDL Compiler or Calcsharp Pro?

VHDL Compiler ships an update every 2 months, and Calcsharp Pro every 2 days. Most recently, VHDL Compiler was updated on September 9, 2026 and Calcsharp Pro on September 22, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*