# OpenSol — A classic 8080 computer

> Intel 8080 computer emulator with Sol-20 Terminal Computer inspiration. (iPhone/iPad app by Jordan Ruderman.)

- Source: https://appshunter.io/ios/app/opensol/id6802088485 (this page in markdown: same URL + `.md`)
- Developer: [Jordan Ruderman](https://appshunter.io/developer/6802088577)
- Category: Utilities
- Price: Free
- Rating: 5.00/5 from 4 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 11 MB
- Languages: American English
- Released: 2026-09-15
- Data updated: 2026-10-08
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/opensol/id6802088485/reviews.md

## What is OpenSol?

OpenSol is an independently developed Intel 8080 computer emulator inspired by the Processor Technology Sol-20 Terminal Computer.

Explore a 64-by-16 character display, type directly into the original OpenSol firmware, and use the built-in Sol Command Monitor. Choose white, green, amber, or red phosphor; switch between a sharp flat display and period-inspired CRT effects; and use full-screen mode for an immersive terminal experience.

OpenSol includes:

• A complete independently written Intel 8080 interpreter
• Original OpenSol firmware and Sol Command Monitor
• iPhone, iPad, and Mac interfaces
• Direct typing, touch input, external keyboards, and compatible game controllers
• User-selected ENT and raw-binary file import
• Private on-device Recent Programs and session restoration
• Experimental virtual cassette and USB-audio cassette tools

OpenSol includes no SOLOS ROM, vintage applications, download catalog, advertising, analytics, tracking, accounts, or network service. Users provide their own lawfully obtained compatible files.

OpenSol is not affiliated with or endorsed by Processor Technology Corporation or any successor rights holder. Historical product names are used only to describe compatibility and historical context.

## Key features

- Intel 8080 interpreter
- Original OpenSol firmware
- Sol Command Monitor
- Customizable display effects (CRT, phosphor)
- Full-screen immersive mode
- External keyboard and controller support
- Virtual cassette tools

## Is OpenSol safe?

Not enough ratings yet to assess OpenSol.

## Is OpenSol legit?

OpenSol has limited verification signals. The AppsHunter Legitimacy Score for OpenSol is 58 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/opensol/id6802088485/reviews.md

### 5/5 — Amazing software

*2026-09-27*

Takes me back to when I used this computer for the first time, Lovely!

### 5/5 — Great app!

*2026-09-20*

Great emulator, fun to play around with, recommend to any hobbiest or anyone who’s curious to learn about old tech!

## Frequently asked questions about OpenSol

### What is OpenSol?

OpenSol is an independently developed emulator for the Intel 8080 computer, specifically inspired by the Processor Technology Sol-20 Terminal Computer. It allows users to interact with original firmware and experience a classic computing environment.

### What devices does OpenSol support?

OpenSol is available for Mac, iPhone, and iPad devices, offering a versatile retro computing experience across Apple platforms.

### Does OpenSol have ads?

No, OpenSol is ad-free and does not contain any advertisements, analytics, or tracking, providing a clean and uninterrupted user experience.

### Can I use a keyboard or controller with OpenSol?

Yes, OpenSol supports direct typing, touch input, external keyboards, and compatible game controllers, allowing for flexible interaction methods.

### What display options are available in OpenSol?

Users can choose from white, green, amber, or red phosphor colors and switch between a sharp flat display or period-inspired CRT effects for an authentic visual experience.

### Does OpenSol come with any vintage software?

No, OpenSol does not include any SOLOS ROM, vintage applications, or a download catalog. Users are responsible for providing their own lawfully obtained compatible files.

### How often is OpenSol updated?

The latest version of OpenSol was released on September 24, 2026, indicating recent development activity. Users can expect ongoing support and potential updates.

### What is the age rating for OpenSol?

OpenSol has an age rating of 4+, making it suitable for a wide range of users interested in exploring retro computing.

## Version history (last 2 releases)

### 1.0 — 2026-09-24

Initial release of OpenSol for iPhone, iPad, and Mac, featuring the original OpenSol firmware, Sol Command Monitor, 8080 emulation, selectable CRT presentation, local program import, and experimental cassette tools.

### 0.1 — 2026-09-16

No release notes.

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## Related topics

[ialtair](https://appshunter.io/ios/topics/ialtair) · [emulator computer](https://appshunter.io/ios/topics/emulator-computer)

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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 2026-10-08.*