# Data Modeler vs JSON Editor Mobile

The clearest difference is rating: Data Modeler at 4.4 against JSON Editor Mobile's 3.9. Data Modeler also leads on update cadence (every 5 days vs every 3 months). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Data Modeler sells 3 in-app purchases, starting at $8.49 per month and JSON Editor Mobile sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Data Modeler holds the better App Store score, 4.4 against 3.9. Both are backed by a comparable volume of ratings — 5 and 11 respectively. Written reviews complicate that: 55% of Data Modeler's written reviews are positive against 60% of JSON Editor Mobile's, so the app with the better star average is not the one people write more warmly about.

Data Modeler ships an update every 5 days, JSON Editor Mobile every 3 months. The most recent releases landed on September 9, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Data Modeler | JSON Editor Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (5 ratings)](https://appshunter.io/ios/app/data-modeler/id1575153701/reviews)** | [3.9 (11 ratings)](https://appshunter.io/ios/app/json-editor-mobile/id6496686132/reviews) |
| Number of ratings | 5 | **11** |
| Positive reviews | 54.5% of reviews | **60.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 months |
| Monetization | Freemium | Free with in-app purchases |
| Size | 23 MB | 11 MB |
| Requires iOS | 17.6 | **16.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Rahul Katariya](https://appshunter.io/developer/1680332229) | [VDT LABS S.R.L.](https://appshunter.io/developer/567740333) |

## What reviewers say

### Data Modeler

[App page](https://appshunter.io/ios/app/data-modeler/id1575153701)

Effortlessly create, visualize, and export complex data models for your projects. Design entities, relationships, and attributes with an intuitive editor. Add data to test your models and export them as JSON documents or diagrams.

**Highlights:** Intuitive data model editor, Create entities, attributes, and relationships, Define cardinalities and relationship types, Add and store data within models, Visualize models as ER diagrams, Export data as JSON documents

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $8.49 | per month |
| Annual | $59.99 | per year |
| Introductory Lifetime Offer | $89.99 | one-time |


### JSON Editor Mobile

[App page](https://appshunter.io/ios/app/json-editor-mobile/id6496686132)

This application allows users to create, visualize, modify, and validate JSON data. It offers both outline and text modes for editing, with features like syntax coloring, auto-indentation, and find/replace functionality. Premium features, including saving documents, are available via a one-time in-app purchase.

**Highlights:** View and edit JSON in outline or text modes, Error-proof manipulation in outline mode, Syntax coloring and auto-indentation in text mode, JSON validation with error highlighting, Find and replace functionality, Undo and redo options, Customizable appearance and font settings

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip | $1.99 | one-time |
| Premium | $4.99 | one-time |


## Frequently asked questions

### Is Data Modeler free?

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

### Is JSON Editor Mobile free?

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

### Which has better reviews, Data Modeler or JSON Editor Mobile?

Data Modeler is rated higher. Data Modeler averages 4.4 out of 5 from 5 ratings, while JSON Editor Mobile averages 3.9 from 11 ratings.

### Do Data Modeler or JSON Editor Mobile have ads?

Neither Data Modeler nor JSON Editor Mobile shows ads.

### Which is updated more often, Data Modeler or JSON Editor Mobile?

Data Modeler ships an update every 5 days, and JSON Editor Mobile every 3 months. Most recently, Data Modeler was updated on September 9, 2026 and JSON Editor Mobile on September 22, 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.*