# VHDL Compiler vs RTC Courses

The clearest difference is in-app purchases: RTC Courses at none against VHDL Compiler's 1. RTC Courses also leads on ads (none vs shown). VHDL Compiler's advantage is iOS requirement (12.0 vs 15.6). On price, update cadence and device support there is nothing between them.

Both are free to download. VHDL Compiler sells 1 one-off in-app purchase. RTC Courses asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 11, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | VHDL Compiler | RTC Courses |
| --- | --- | --- |
| Price | Free | Free |
| 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 months |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 100 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ketan Appa](https://appshunter.io/developer/576435759) | [Ahmed Elsayed](https://appshunter.io/developer/1871721975) |

## 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 |


### RTC Courses

[App page](https://appshunter.io/ios/app/rtc-courses/id6759190431)

**Features:** macOS Compatibility, 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 RTC Courses free?

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

### Do VHDL Compiler or RTC Courses have ads?

VHDL Compiler shows ads; RTC Courses does not.

### Which is updated more often, VHDL Compiler or RTC Courses?

VHDL Compiler ships an update every 2 months, and RTC Courses every 2 months. Most recently, VHDL Compiler was updated on October 11, 2026 and RTC Courses on October 12, 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.*