# OMessage vs JSON Editor

The clearest difference is iOS requirement: OMessage at 16.0 against JSON Editor's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

OMessage ships an update every 5 days, JSON Editor every 6 days. The most recent releases landed on October 2, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | OMessage | JSON Editor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 6 days |
| Size | 12 MB | 8 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | +4 |
| Developer | [寰宇 骆](https://appshunter.io/developer/1045601874) | [Hue Nguyen](https://appshunter.io/developer/1716687307) |

## What reviewers say

### OMessage

[App page](https://appshunter.io/ios/app/omessage-chat-with-local-ai/id6742433200)

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

**In-app purchases:** none


### JSON Editor

[App page](https://appshunter.io/ios/app/json-editor-smart-json/id6808895982)

**In-app purchases:** none


## Frequently asked questions

### Is OMessage free?

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

### Is JSON Editor free?

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

### Do OMessage or JSON Editor have ads?

Neither OMessage nor JSON Editor shows ads.

### Which is updated more often, OMessage or JSON Editor?

OMessage ships an update every 5 days, and JSON Editor every 6 days. Most recently, OMessage was updated on October 2, 2026 and JSON Editor on October 17, 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.*