# VHDL Compiler vs SubLater

The clearest difference is ads: SubLater at none against VHDL Compiler's shown. SubLater also leads on update cadence (every 5 days vs every 2 months). VHDL Compiler's advantage is iOS requirement (12.0 vs 18.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. VHDL Compiler sells 1 one-off in-app purchase and SubLater sells 2 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

VHDL Compiler ships an update every 2 months, SubLater every 5 days. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | VHDL Compiler | SubLater |
| --- | --- | --- |
| 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 | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 11 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Ketan Appa](https://appshunter.io/developer/576435759) | [Hyun jun Yang](https://appshunter.io/developer/6782118398) |

## 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 |


### SubLater

[App page](https://appshunter.io/ios/app/sublater-hear-it-first/id6810230415)

**Features:** Safari Extension, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SubLater Pro Monthly | $8.99 | per month |
| SubLater Pro Yearly | $49.99 | per year |


## Frequently asked questions

### Is VHDL Compiler free?

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

### Is SubLater free?

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

### Do VHDL Compiler or SubLater have ads?

VHDL Compiler shows ads; SubLater does not.

### Which is updated more often, VHDL Compiler or SubLater?

VHDL Compiler ships an update every 2 months, and SubLater every 5 days. Most recently, VHDL Compiler was updated on November 3, 2026 and SubLater on November 5, 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.*