Best Api Debugger Apps & Games

217+ iOS apps & games curated and reviewed

4.3 avg rating
20 free apps & games
Updated July 2026

Every iPhone needs a few good api debugger apps. We benchmark 217+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Top Picks for Api Debugger

API Debugger#1

API Debugger by Guilin Cui

Editor's Choice
📊 Productivity
3.0(1 ratings)
Free
API Debugger screenshot 1
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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.

HTTPBot: API & HTTP Client#2

HTTPBot: API & HTTP Client by Arvindh Sukumar

Make Requests, Debug APIs
Strong Contender
🛠️ Developer Tools
4.5😐(1.3K ratings)
FreeIn-App Purchases
#36in Developer Tools
HTTPBot: API & HTTP Client screenshot 1
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HTTPBot: API & HTTP Client screenshot 6

This app allows users to send HTTP/HTTPS requests and connect to WebSockets, making it easy to debug APIs on the go. It supports various response formats, collaboration features, and authentication methods, streamlining API development and testing.

What We Love

  • 🚀 Intuitive interface
  • 👍 Postman integration
  • 🚀 Powerful HTTP client
  • 👍 Great tool for API testing

Room to Improve

  • 🐛 Crashes and bugs
  • 🔒 Lacks security features (e.g., client certificates)
  • 💰 Expensive for the limited free version
SSE Inspector - LLM API Client#3

SSE Inspector - LLM API Client by 猛 李

Debug AI streams fast
Worth Considering
🛠️ Developer Tools
5.0(1 ratings)
Free
SSE Inspector - LLM API Client screenshot 1
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Debug AI API streams with this tool that preserves SSE responses, showing every packet, semantic delta, and timing. It supports multiple AI models and imports cURL commands for easy session management, editing, and sharing.

More Api Debugger apps to explore

4
Reqable
Reqable
Reqable
Advanced API Debugging Proxy
Free

This tool acts as an advanced API debugging proxy, allowing you to inspect and test HTTP/HTTPS traffic independently or collaboratively with a desktop app. It supports various protocols and offers REST API management features for efficient development.

Standalone traffic inspectionCollaborative mode with desktop appHTTP/HTTPS traffic analysis
🔧 Utilities
(6)
free
5
QRU? - QR Code Debugger
QRU? - QR Code Debugger
QRU? - QR Code Debugger
Scan & Decode URL Components
Free
$0.99 | 100% OFF

This tool helps developers debug QR codes by scanning them and breaking down the data into color-coded URL components. It provides instant scanning, QR code generation, and a scan history for easy management and analysis of encoded information.

Colorized URL breakdownInstant QR code scanningQR code generation
🛠️ Developer Tools
(0)
free
6
Rest – HTTP API Client
Rest – HTTP API Client
Rest – HTTP API Client
Perform HTTP Requests
Free

Easily perform HTTP requests directly from your mobile device. Supports various body types, syntax highlighting, and detailed response inspection. Import collections and manage project variables for efficient API testing.

Supports JSON, Form & Multipart bodiesSyntax highlighting and JSON error reportingAll common and custom HTTP methods
🛠️ Developer Tools
(88)
free with in-app purchases
7
Teste - API, Scripts, Terminal
Teste - API, Scripts, Terminal
Teste - API, Scripts, Terminal
Developer Workspace
Free

Test various APIs directly from your mobile device. Supports REST, GraphQL, WebSockets, and more, with advanced editors and request customization. Share requests easily and manage cookies and history.

Test REST, GraphQL, WebSocket, SOAP, JSON RPC, XML, HTTP, HTTPS APIsPowerful GraphQL editor with query, mutation, subscription supportWebSocket testing tool for WS and WSS connections
🛠️ Developer Tools
(496)
free
8
Bluetooth Debugger & Inspector
Bluetooth Debugger & Inspector
Bluetooth Debugger & Inspector
Detector & Manager Devices
Free

Discover, connect, and debug nearby Bluetooth devices. Inspect their services, characteristics, and data in real-time. Log and export device information, and manage connections with ease.

Device scan and findCustomized device alias and iconRecord and show device locations
🛠️ Developer Tools
(5)
freemium
9
Cumbersome: AI LLM API Client
Cumbersome: AI LLM API Client
Cumbersome: AI LLM API Client
API to ChatGPT, OpenAI, Ollama
Free

Connect directly to AI provider APIs for greater control over model selection and parameters. Compare different AI models, pay per use, and customize responses with advanced features. Supports multiple providers and custom endpoints.

Direct API connectionsMulti-provider supportFull parameter control
📊 Productivity
(31)
free
10
API Bot
API Bot
API Bot
API calls at your fingertips
Free

This tool empowers mobile developers to build and test APIs directly on their devices. It leverages on-device machine learning to analyze API results and identify patterns, while also allowing for the creation and management of various request types and data formats.

On-device machine learning for API result analysisBuild GET, POST, PUT, DELETE requestsManage headers and data
🛠️ Developer Tools
(14)
free with in-app purchases
11
Packet Capture Pro: HTTPS
Packet Capture Pro: HTTPS
Packet Capture Pro: HTTPS
Advanced HTTP/HTTPS Debugger
Free

Capture and analyze HTTP/HTTPS/WebSocket traffic on your device. Inspect full request/response details, filter by keywords, and rewrite/replay network responses. Collaborate with PC clients and import/export HAR files for seamless debugging.

Real-time HTTP/HTTPS/WebSocket traffic captureDetailed request and response inspectionKeyword-based filtering
🛠️ Developer Tools
(15)
free with in-app purchases
12
API-Client Testing
API-Client Testing
API-Client Testing
REST API
Free

Send and analyze HTTP/HTTPS requests directly from your mobile device. Save requests to collections for easy reuse and view detailed response information, including headers and round trip time. Customize connection timeout settings for efficient testing.

Send HTTP/HTTPS requestsAnalyze REST API responsesRequest history
🔧 Utilities
(1)
free
13
API Tester REST API HTTP SOAP
API Tester REST API HTTP SOAP
API Tester REST API HTTP SOAP
Test your API Client HTTP.
Free

This application provides a unified environment for developers and QA engineers to test, debug, and analyze various API types including REST, GraphQL, WebSocket, SOAP, JSON RPC, and XML. It offers features like CRUD operations, authentication support, query validation, real-time interaction, and WSDL file loading for comprehensive API testing.

REST API Testing (CRUD, HTTP methods)GraphQL query and mutation testingReal-time WebSocket interaction
🛠️ Developer Tools
(10)
free
14
REST API Client
REST API Client
REST API Client
REST API and GraphQL Client
Free

This tool allows users to send and analyze API requests with customizable parameters, authorization, and body content. It offers robust search and filtering capabilities for managing saved requests, optimized for iPadOS with keyboard support.

Send and analyze API requestsCustomize query parameters, authorization, and headersSupport for four body types
🛠️ Developer Tools
(5)
free with in-app purchases
15
Debug Anywhere
Debug Anywhere
Debug Anywhere
Inspect web / DevTools
Free

This app provides a comprehensive suite of tools for web developers to inspect and debug web pages within a WebView environment. It offers features like source code inspection, network diagnostics, and JavaScript injection to streamline the development process.

Webpage inspection toolsUser-Agent switcherJavaScript injection
🛠️ Developer Tools
(56)
free with in-app purchases
16
Cursor
Cursor
Cursor
by Anysphere Incorporated
Free
🛠️ Developer Tools
(0)
17
Web Inspector - code debugger
Web Inspector - code debugger
Web Inspector - code debugger
Mobile html javascript css xml
Free

Inspect and share HTML, CSS, and JavaScript source code from mobile web pages directly on your device. Debug web applications by viewing source code as a real mobile browser would.

Inspect HTML tagsView CSS codeExtract JavaScript
🔧 Utilities
(30)
ad-supported
18
Postman API-First Journey
Postman API-First Journey
Postman API-First Journey
Escape the monolith.
Free

Navigate a challenging world by dodging obstacles and defeating bugs. Utilize unique powers to advance through levels and reach the API-First World. This game offers an engaging experience focused on strategic movement and combat.

Avoid obstaclesDestroy bugsUse Postman powers
🎮 Games
(14)
ad-supported
19
API Pro
API Pro
API Pro
The Simplest API App
Free

This application simplifies understanding of APIs by allowing users to interact with core components. It introduces fundamental API concepts and basic terminology in an accessible way.

Interactive API component explorationExplanation of key API conceptsIntroduction to basic API terms
📚 Education
(2)
free
20
RestForge - API Client
RestForge - API Client
RestForge - API Client
REST API Client & Tester
Free

This app allows developers to build, test, debug, and automate APIs directly from their mobile devices. It supports various HTTP methods, body types, and offers cloud sync, scripting, and SOAP support. Premium features include code export and an analytics dashboard.

Send and test all HTTP methodsSupport for multiple body typesImport from popular API tools
🛠️ Developer Tools
(4)
free with in-app purchases