# Horizontal PCB — View hprj design files.

> View hprj design files. (iPhone/iPad app by Twarge LLC.)

- Source: https://appshunter.io/ios/app/horizontal-pcb/id6781505835 (this page in markdown: same URL + `.md`)
- Developer: [Twarge LLC](https://appshunter.io/developer/6781456673)
- Category: Productivity, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 26.0 · 33 MB
- Languages: American English
- Released: 2026-08-23
- Data updated: 2026-09-16
- User reviews in markdown: https://appshunter.io/ios/app/horizontal-pcb/id6781505835/reviews.md

## What is Horizontal PCB?

Read the hprj PCB design format. Export to Gerber, DXF, PDF, etc.


## Version history (last 4 releases)

### 1.3 — 2026-09-15

- Voice control. When you have your hands tied up with a soldering iron and solder, you can ask it to "Highlight C48", "Highlight the nets between C48 and C50", "Show me the board and 3D view", etc.
- iPhone support.

### 1.2 — 2026-09-10

- 3D viewer improvements
- MCP server

### 1.1 — 2026-08-25

- attempt to improve responsiveness to pan/zoom

### 1.0 — 2026-08-24

No release notes.

## More apps by Twarge LLC

- [HighDeF](https://appshunter.io/ios/app/highdef/id6781456671)
- [DeXeF](https://appshunter.io/ios/app/dexef/id6781488401)
- [Stairstep](https://appshunter.io/ios/app/stairstep/id6781493653)
- [Typeset Typst](https://appshunter.io/ios/app/typeset-typst/id6781494180)
- [Geomagnetic Observatory](https://appshunter.io/ios/app/geomagnetic-observatory/id6783194320)

All apps by Twarge LLC: https://appshunter.io/developer/6781456673

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-16.*