# Jayson vs Swifty Compiler

The clearest difference is chart position: Swifty Compiler at #32 against Jayson's #116. Swifty Compiler also leads on iOS requirement (16.0 vs 26.0). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Jayson sells 1 one-off in-app purchase and Swifty Compiler sells 4 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.5 for Jayson against 4.5 for Swifty Compiler. Both are backed by a comparable volume of ratings — 451 and 204 respectively. Written reviews are what separate them: 81% of Jayson's written reviews are positive against 84% of Swifty Compiler's.

Jayson ships an update every 3 weeks, Swifty Compiler fortnightly. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Jayson | Swifty Compiler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (451 ratings)](https://appshunter.io/ios/app/jayson/id1447750768/reviews)** | [4.5 (204 ratings)](https://appshunter.io/ios/app/swifty-compiler-swift-ide/id1544749600/reviews) |
| Number of ratings | **451** | 204 |
| Positive reviews | 80.7% of reviews | **84.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | Freemium |
| Best chart rank | #116 | **#32** |
| Size | 41 MB | 70 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Simon B. Støvring](https://appshunter.io/developer/423532907) | [Hassan Taleb](https://appshunter.io/developer/955305566) |

## What reviewers say

### Jayson

[App page](https://appshunter.io/ios/app/jayson/id1447750768)

**Currently charting:** #116 Top Free · Developer Tools (US App Store)

This app allows you to view and edit JSON files directly on your device. It offers features like tabbed browsing, split-screen comparisons, and integration with Siri Shortcuts and the Share Sheet for easy JSON parsing and management.

**Highlights:** Browse JSON files, Table or syntax highlighted text view, Tabbed interface, Multiple splits for comparison, Siri Shortcuts integration, Share Sheet Actions, URL schemes

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Everything | $4.99 | one-time |

**What reviewers like**

- 👍 Elegant and intuitive JSON editing interface
- 🎯 Perfect for FNF mod development and updates
- 📱 Excellent iOS implementation with native feel
- 🔧 Powerful JSON manipulation capabilities
- ⚡ Great Shortcuts and URL scheme integration

**What reviewers complain about**

- 🐛 Frequent crashes and instability issues
- 🔋 High battery consumption and device heating
- ❌ Missing search functionality
- 📵 Safari browser support issues
- 🔒 Limited free features, paywall for advanced options

**Reported bugs**

- App crashes when opening large JSON files (89MB+)
- Crashes on regular use despite functionality
- Device freezing for extended periods
- Safari compatibility broken in recent updates
- Navigation back through JSON structure is unreliable

**Requested features**

- Search/find functionality within files
- JSON editing and modification capabilities
- XML format support
- Split-view for comparing different arrays
- Export functionality for edited JSON


### Swifty Compiler

[App page](https://appshunter.io/ios/app/swifty-compiler-swift-ide/id1544749600)

**Currently charting:** #32 Top Grossing · Developer Tools, #119 Top Free · Developer Tools (US App Store)

Write, run, and experiment with Swift code on your mobile device. This app functions as a personal playground for testing algorithms, prototyping ideas, and enhancing coding skills with a variety of editing tools.

**Highlights:** Write and run Swift code, Import Swift and Playground files, Code completion and error highlighting, Code formatting and syntax correction, Code snapshots (PNG, JPEG, PDF), Dark and light mode support, Unlimited credits (Premium)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly Subscription | $4.99 | per 7 days |
| Premium Monthly Subscription | $12.99 | per month |
| Premium Yearly Subscription | $79.99 | per year |
| Premium Lifetime | $99.00 | one-time |

**What reviewers like**

- 🚀 Fast code execution
- 👍 Easy to use interface
- 💡 Great for on-the-go coding
- ✨ Good for learning Swift
- ✅ Useful for testing logic

**What reviewers complain about**

- 💰 High cost for features
- ⚠️ Limited free usage
- 💸 Subscription model criticized
- 🚫 No offline mode
- 🤔 Unreasonable charging logic

**Reported bugs**

- Refund screenshots are not correct
- Kept loading without doing anything
- Issues related to JSON parsing
- Cannot save projects without paying
- Cannot use Date or Calendar as types

**Requested features**

- Support for newer Swift versions
- Ability to import projects online
- Cache 'premium' pop-up
- Support multithreading (GCD)
- Fix console printing bug


## Frequently asked questions

### Is Jayson free?

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

### Is Swifty Compiler free?

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

### Which has better reviews, Jayson or Swifty Compiler?

Jayson is rated higher. Jayson averages 4.5 out of 5 from 451 ratings, while Swifty Compiler averages 4.5 from 204 ratings.

### Do Jayson or Swifty Compiler have ads?

Neither Jayson nor Swifty Compiler shows ads.

### Which is updated more often, Jayson or Swifty Compiler?

Jayson ships an update every 3 weeks, and Swifty Compiler fortnightly. Most recently, Jayson was updated on November 6, 2026 and Swifty Compiler on November 7, 2026.

### Which is more popular, Jayson or Swifty Compiler?

Jayson currently peaks at #116 in the App Store charts, and Swifty Compiler at #32. Chart position reflects recent download velocity rather than total install base.

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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.*