# Jayson vs March BMS

The clearest difference is in-app purchases: March BMS at none against Jayson's 1. March BMS also leads on iOS requirement (9.0 vs 26.0). Jayson's advantage is ads (none vs shown) and chart position (#91 vs unranked). On price, update cadence and device support there is nothing between them.

Both are free to download. Jayson sells 1 one-off in-app purchase. March BMS asks for nothing beyond the download.

Jayson ships an update every 3 weeks, March BMS fortnightly. The most recent releases landed on September 23, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Jayson | March BMS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (425 ratings)](https://appshunter.io/ios/app/jayson/id1447750768/reviews)** | — |
| Number of ratings | **425** | — |
| Positive reviews | 80.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#91** | — |
| Size | 41 MB | 26 MB |
| Requires iOS | 26.0 | **9.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Simon B. Støvring](https://appshunter.io/developer/423532907) | [杰 王](https://appshunter.io/developer/1602653731) |

## What reviewers say

### Jayson

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

**Currently charting:** #91 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


### March BMS

[App page](https://appshunter.io/ios/app/march-bms/id1603395920)

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

**In-app purchases:** none


## Frequently asked questions

### Is Jayson free?

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

### Is March BMS free?

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

### Do Jayson or March BMS have ads?

March BMS shows ads; Jayson does not.

### Which is updated more often, Jayson or March BMS?

Jayson ships an update every 3 weeks, and March BMS fortnightly. Most recently, Jayson was updated on September 23, 2026 and March BMS on September 18, 2026.

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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.*