# API Debugger vs QMT

API Debugger and QMT are too close to call on the numbers: across 9 compared parameters — price, rating, ratings volume and update cadence among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

On the App Store both sit at effectively the same score — 3.0 for API Debugger against 3.0 for QMT. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

API Debugger ships an update every 3 months, QMT every 2 months. The most recent releases landed on July 7, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | API Debugger | QMT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/api-debugger/id1069711788/reviews) | [3.0 (1 ratings)](https://appshunter.io/ios/app/qmt-amazon-seller-toolkit/id1433911176/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 1 MB | 24 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Guilin Cui](https://appshunter.io/developer/848880043) | [耀溢 林](https://appshunter.io/developer/968003027) |

## What reviewers say

### 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


### QMT

[App page](https://appshunter.io/ios/app/qmt-amazon-seller-toolkit/id1433911176)

Monitor and manage your Amazon store's performance on the go. Track sales, orders, profit, inventory, and advertising metrics with a mobile-first interface. Analyze detailed reports and drill down into specific SKUs, stores, and campaigns.

**Highlights:** Sales and KPI dashboard, Product and store sales reports, Order and inventory management, Advertising campaign analysis, Profit breakdown, Date range and store filters, Dark mode and Face ID

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

**In-app purchases:** none


## Frequently asked questions

### Is API Debugger free?

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

### Is QMT free?

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

### Which has better reviews, API Debugger or QMT?

API Debugger and QMT are both rated 3.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do API Debugger or QMT have ads?

Neither API Debugger nor QMT shows ads.

### Which is updated more often, API Debugger or QMT?

API Debugger ships an update every 3 months, and QMT every 2 months. Most recently, API Debugger was updated on July 7, 2026 and QMT on October 1, 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.*