# ContextFlow vs JSON Master

The clearest difference is ads: ContextFlow at none against JSON Master's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. ContextFlow sells 2 in-app purchases, starting at $0.99 per month and JSON Master sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ContextFlow ships an update every 2 weeks, JSON Master every 9 days. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | ContextFlow | JSON Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (5 ratings)](https://appshunter.io/ios/app/json-master-editor-and-viewer/id6757484875/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Monetization | — | Free with in-app purchases |
| Size | 61 MB | 41 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Ishan Srivastava](https://appshunter.io/developer/1858540127) | [Tianjin Illuso Information Technology Co., Ltd.](https://appshunter.io/developer/1864792206) |

## What reviewers say

### ContextFlow

[App page](https://appshunter.io/ios/app/contextflow-ai-second-brain/id6756112742)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Lite | $0.99 | per month |
| Pro | $1.99 | per month |


### JSON Master

[App page](https://appshunter.io/ios/app/json-master-editor-and-viewer/id6757484875)

This offline iOS tool formats, views, validates, and converts JSON data. It supports large files and offers privacy-safe, local processing for developers needing to debug API responses or transform data formats.

**Highlights:** Offline JSON formatting and beautifying, Tree and text view for JSON visualization, Instant JSON syntax validation, JSON to CSV, XML, Excel conversion, Large file support, Import from clipboard and files

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| JSON Master Pro (Weekly) | $2.99 | per 7 days |
| Pro (Yearly) | $14.99 | per year |


## Frequently asked questions

### Is ContextFlow free?

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

### Is JSON Master free?

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

### Do ContextFlow or JSON Master have ads?

JSON Master shows ads; ContextFlow does not.

### Which is updated more often, ContextFlow or JSON Master?

ContextFlow ships an update every 2 weeks, and JSON Master every 9 days. Most recently, ContextFlow was updated on November 9, 2026 and JSON Master on November 5, 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.*