# API Client vs ByteSniffer

The clearest difference is review sentiment: ByteSniffer at 50% against API Client's 0%. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. API Client sells 2 in-app purchases, starting at $1.99 per month and ByteSniffer sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

API Client ships an update every 10 days, ByteSniffer every 8 days. The most recent releases landed on September 25, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | API Client | ByteSniffer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 8 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 41 MB | 22 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Sahana A S](https://appshunter.io/developer/1800491118) | [存龙 霍](https://appshunter.io/developer/1442030835) |

## What reviewers say

### API Client

[App page](https://appshunter.io/ios/app/api-client-rest-http-tester/id6760490589)

Test REST APIs directly from your mobile device. Paste URLs, select methods, and view detailed responses including status codes, headers, and formatted JSON. Manage environments, save requests, and even import/export cURL commands.

**Highlights:** Paste URL and send requests, Smart JSON viewer with search, Environment management, Collections and history, cURL import and export, API monitoring, Test suites and assertions, API docs generator

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RESTPilot Pro Monthly | $1.99 | per month |
| Ad Free experience | $9.99 | one-time |


### ByteSniffer

[App page](https://appshunter.io/ios/app/bytesniffer/id6768570500)

This tool allows developers to capture, inspect, and modify network traffic on their mobile devices. It enables debugging, API testing, and troubleshooting by providing features like request rewriting, session history, and scripting.

**Highlights:** HTTP capture and session history, Request and response inspection, Request and response rewrite tools, JavaScript scripting support, HTTPS MITM debugging, API debugging and testing

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Continuous monthly subscription | $1.99 | per month |
| Continuous seasonal subscription | $3.99 | per 3 months |
| Continuous annual subscription | $12.99 | per year |
| Permanent Pember | $2.99 | one-time |


## Frequently asked questions

### Is API Client free?

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

### Is ByteSniffer free?

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

### Do API Client or ByteSniffer have ads?

Neither API Client nor ByteSniffer shows ads.

### Which is updated more often, API Client or ByteSniffer?

API Client ships an update every 10 days, and ByteSniffer every 8 days. Most recently, API Client was updated on September 25, 2026 and ByteSniffer on September 20, 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.*