# Jayson vs RuntimeBrief

The clearest difference is rating: RuntimeBrief at 5.0 against Jayson's 4.5. RuntimeBrief also leads on in-app purchases (none vs 1). Jayson's advantage is ratings volume (425 vs 1) and chart position (#87 vs unranked). On price, update cadence, ads and device support there is nothing between them.

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

RuntimeBrief holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Jayson has 425 ratings behind it against 1, so its average is the more settled of the two.

Jayson ships an update every 3 weeks, RuntimeBrief every 2 weeks. The most recent releases landed on October 13, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Jayson | RuntimeBrief |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (425 ratings)](https://appshunter.io/ios/app/jayson/id1447750768/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/runtimebrief/id6789999252/reviews)** |
| Number of ratings | **425** | 1 |
| Positive reviews | 80.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#87** | — |
| Size | 41 MB | 3 MB |
| Requires iOS | 26.0 | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Simon B. Støvring](https://appshunter.io/developer/423532907) | [Prachi Jain](https://appshunter.io/developer/1856073915) |

## What reviewers say

### Jayson

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

**Currently charting:** #87 Top Free · Developer Tools, #115 Top Grossing · 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


### RuntimeBrief

[App page](https://appshunter.io/ios/app/runtimebrief/id6789999252)

This app transforms local coding agent and repository activity into concise, evidence-backed project updates. It connects to a daemon on your Mac to display changes, progress, and attention-needed items, with each update linking to its supporting commit or scan. Features include a portfolio brief, native Claude Code tasks, and Siri/Shortcuts integration.

**Highlights:** Concise portfolio brief, Evidence-backed project status, Native Claude Code tasks, Optional analyst answers via Codex CLI, Local release summaries, Siri and Shortcuts access, Offline fictional demo

**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 RuntimeBrief free?

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

### Which has better reviews, Jayson or RuntimeBrief?

RuntimeBrief is rated higher. Jayson averages 4.5 out of 5 from 425 ratings, while RuntimeBrief averages 5.0 from 1 ratings.

### Do Jayson or RuntimeBrief have ads?

Neither Jayson nor RuntimeBrief shows ads.

### Which is updated more often, Jayson or RuntimeBrief?

Jayson ships an update every 3 weeks, and RuntimeBrief every 2 weeks. Most recently, Jayson was updated on October 13, 2026 and RuntimeBrief on October 4, 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.*