# MainOrNot — Learn concurrency

> Interactive Swift concurrency learning platform with real-time code execution. (iPhone/iPad app by Joey Barbier.)

- Source: https://appshunter.io/ios/app/mainornot/id6752519866 (this page in markdown: same URL + `.md`)
- Developer: [Joey Barbier](https://appshunter.io/developer/568751299)
- Category: Developer Tools, Education
- Price: Free
- Age rating: 4+
- Requires: iOS 26.0 · 7 MB
- Languages: American English, French (France), German (Germany), Japanese, Brazilian Portuguese, European Spanish
- Released: 2025-09-18
- Data updated: 2026-06-05
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/mainornot/id6752519866/reviews.md

## What is MainOrNot?

Master Swift Concurrency Like Never Before

  Dive into the world of modern Swift programming with our interactive learning platform. Whether you're a beginner exploring async/await or an experienced developer mastering actors
  and structured concurrency, this app makes complex concepts crystal clear.

What Makes Us Different:
  • Real-time Code Execution - See your code run instantly with live logging
  • Thread Visualization - Track main vs background threads with color-coded indicators• Interactive Examples - Learn by doing, not just reading
  • Complete Coverage - From basics to advanced patterns like TaskGroups and cooperative cancellation
  • Swift 6 Ready - Latest concurrency features and best practices

Perfect For:
  - iOS developers transitioning to modern Swift
  - Students learning concurrent programming
  - Teams upgrading to Swift 6
  - Anyone wanting hands-on concurrency practice

Fully Localized
  Available in 6 languages with 100% native translations.

  Transform your understanding of Swift concurrency today. Download now and start building faster, safer, and more efficient iOS apps!

## Key features

- Real-time code execution
- Thread visualization
- Interactive examples
- Complete concurrency coverage
- Swift 6 ready features
- Localized in 6 languages

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/mainornot/id6752519866/reviews.md

### 5/5 — Swift Concurrency Final Boss!!

*2025-11-27*

The developer was able to condense an insanely deep amount of Swift Concurrency material that otherwise you’d only find out consuming multiple distinct sources

**Developer response:** Thanks for the feedback, that’s really kind. 
I hope it was super helpful for you!

## Frequently asked questions about MainOrNot

### What is MainOrNot?

MainOrNot is a free, interactive learning platform designed to help users master modern Swift concurrency concepts. It offers real-time code execution, thread visualization, and hands-on examples for beginners and experienced developers alike.

### Is MainOrNot free to use?

Yes, MainOrNot is completely free to use. There are no in-app purchases or advertisements, allowing for an uninterrupted learning experience.

### What devices does MainOrNot support?

MainOrNot is available for iPhone and iPad devices. It is designed to run on the latest versions of iOS.

### How often is MainOrNot updated?

The app was last updated on November 18, 2025, with version 1.0.1. This indicates a recent update, suggesting ongoing development and support for the latest Swift features.

### Does MainOrNot have ads?

No, MainOrNot is ad-free. The application does not contain any advertisements, ensuring a focused and distraction-free learning environment.

### What age rating does MainOrNot have?

MainOrNot has an age rating of 4+. This indicates that the content is generally suitable for all ages, with no mature themes or content.

### What languages is MainOrNot available in?

MainOrNot is fully localized and available in 6 languages, offering 100% native translations to cater to a global audience of developers and students.

### What Swift concurrency features does MainOrNot cover?

MainOrNot provides complete coverage of Swift concurrency, from basic async/await to advanced patterns like actors, structured concurrency, TaskGroups, and cooperative cancellation. It is also Swift 6 ready, covering the latest features and best practices.

## Version history (last 2 releases)

### 1.0.1 — 2025-11-18

We’ve improved the app, fixed various bugs, and enhanced the content for a better experience.

### 1.0.0 — 2025-09-18

No release notes.

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## More apps by Joey Barbier

- [Overskill](https://appshunter.io/ios/app/overskill/id1621177909)
- [Dreams and Crayons](https://appshunter.io/ios/app/dreams-and-crayons/id6449554011)
- [StickerShare](https://appshunter.io/ios/app/stickershare/id6759840845)

All apps by Joey Barbier: https://appshunter.io/developer/568751299

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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 2026-06-05.*