# Retro Tech Collector vs OpenSol

The clearest difference is in-app purchases: OpenSol at none against Retro Tech Collector's 4. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Retro Tech Collector sells 4 in-app purchases, starting at $5.00 per month. OpenSol asks for nothing beyond the download.

Retro Tech Collector ships an update every 5 days, OpenSol every 8 days. The most recent releases landed on October 21, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Retro Tech Collector | OpenSol |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/opensol/id6802088485/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 8 days |
| Monetization | — | Free |
| Size | 33 MB | 11 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Joshua Yeaman](https://appshunter.io/developer/1895038161) | [Jordan Ruderman](https://appshunter.io/developer/6802088577) |

## What reviewers say

### Retro Tech Collector

[App page](https://appshunter.io/ios/app/retro-tech-collector/id6762841160)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Collector | $5.00 | per month |
| Enthusiast | $15.00 | per month |
| Collector (Annual) | $50.00 | per year |
| Enthusiast (Annual) | $150.00 | per year |


### OpenSol

[App page](https://appshunter.io/ios/app/opensol/id6802088485)

Experience a classic 8080 computer emulator inspired by the Sol-20 Terminal Computer. Interact with original firmware, customize display effects, and enjoy an immersive terminal experience. This independently developed app offers a unique retro computing simulation.

**Highlights:** 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

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Retro Tech Collector free?

Retro Tech Collector is free to download, with in-app purchases available.

### Is OpenSol free?

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

### Do Retro Tech Collector or OpenSol have ads?

Neither Retro Tech Collector nor OpenSol shows ads.

### Which is updated more often, Retro Tech Collector or OpenSol?

Retro Tech Collector ships an update every 5 days, and OpenSol every 8 days. Most recently, Retro Tech Collector was updated on October 21, 2026 and OpenSol on October 8, 2026.

---

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