# JSON Designer vs API Debugger

The clearest difference is review sentiment: JSON Designer at 52% against API Debugger's 0%. JSON Designer also leads on rating (3.3 vs 3.0) and ratings volume (10 vs 1). API Debugger's advantage is in-app purchases (none vs 1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. JSON Designer sells 1 in-app purchase, starting at $1.99 per month. API Debugger asks for nothing beyond the download.

JSON Designer holds the better App Store score, 3.3 against 3.0. That said, the two scores are not equally well evidenced: JSON Designer has 10 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 52% of JSON Designer's written reviews are positive against 0% of API Debugger's.

JSON Designer ships an update every 4 months, API Debugger every 3 months. The most recent releases landed on June 10, 2026 and July 7, 2026 respectively.

## The numbers

| Metric | JSON Designer | API Debugger |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (10 ratings)](https://appshunter.io/ios/app/json-designer/id432736126/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/api-debugger/id1069711788/reviews) |
| Number of ratings | **10** | 1 |
| Positive reviews | **52.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 10 MB | 1 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Cribster UG (haftungsbeschrankt)](https://appshunter.io/developer/388203112) | [Guilin Cui](https://appshunter.io/developer/848880043) |

## What reviewers say

### JSON Designer

[App page](https://appshunter.io/ios/app/json-designer/id432736126)

Visually model and design JSON structures with this intuitive tool. Generate code from your models and export diagrams for documentation. Ideal for developers who want to understand and represent APIs more effectively.

**Highlights:** Graphically model JSON structures, Export JSON models as images, Reverse-generate models from JSON, Browse API examples, Generate Protocol Buffers (.proto), Includes tutorial and open-in functionality

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| App Backer - Code Generators Access | $1.99 | per month |


### API Debugger

[App page](https://appshunter.io/ios/app/api-debugger/id1069711788)

This tool helps developers inspect and understand API response data. It provides a clear interface for debugging and analyzing the information received from APIs, aiding in the development process.

**Highlights:** Debug API response data, Analyze data, Clear interface, Aid development process

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is JSON Designer free?

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

### Is API Debugger free?

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

### Which has better reviews, JSON Designer or API Debugger?

JSON Designer is rated higher. JSON Designer averages 3.3 out of 5 from 10 ratings, while API Debugger averages 3.0 from 1 ratings.

### Do JSON Designer or API Debugger have ads?

Neither JSON Designer nor API Debugger shows ads.

### Which is updated more often, JSON Designer or API Debugger?

JSON Designer ships an update every 4 months, and API Debugger every 3 months. Most recently, JSON Designer was updated on June 10, 2026 and API Debugger on July 7, 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.*