Best Api Testing Apps

Tester - AI Worker

Developer AI Agent, Any Task

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.

API Tester ‎

Test APIs

Free

This tool simplifies API testing for developers and enthusiasts. Organize requests, customize headers and parameters, and send various body types. Supports flexible authentication and allows sharing of test collections.

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.

API Dash - API Client, Testing

API Client to easily test APIs

Free

Easily create, customize, and test various HTTP API requests. Organize your requests into collections and preview multimedia responses like images and PDFs. Generate code snippets for integration into your projects.

PostX - Rest API Client

HTTP API Client

Free

This app allows developers to build and test REST, HTTP, and SOAP APIs directly on their iPhone or iPad. It supports various request methods, authentication types, and body formats, with features for organizing requests and inspecting responses.

RestForge - API Client

GraphQL & REST API Client

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.

API Client - REST HTTP Tester

REST API Tester & HTTP Client

Free

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.

SendMan: API & HTTP Client

Build, Test & Monitor APIs

Free

This tool allows developers to build, test, and monitor APIs from any location. Organize requests, save collections, and debug efficiently by comparing responses and inspecting payloads.

HTTPBot: API & HTTP Client

API, MCP & WebSocket Debugger

Free

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.

Citizen Test Prep 2026

USA Citizenship Prep & Study

Free

Prepare for your U.S. citizenship exam with a personalized study plan. This app offers practice questions, tracks your progress, and helps you master topics like American Government and History to boost your confidence for the oral interview.

npn.dev

An HTTP client that works

Free

This tool allows developers to explore and test HTTP APIs efficiently. It prioritizes speed and accuracy for a seamless development experience.

ApiClient

REST API Client

Free

Test and manage REST APIs directly from your phone. Import, edit, and export Postman collections, send Firebase notifications, and format JSON requests on the go. Save API requests and responses for easy access and sharing.

Firefighter I & II Test Prep

Certification Exam Training

Free

Prepare for your Firefighter certification exam with a personalized study plan. Practice over 800 multiple-choice questions, track your progress, and compare your scores to the community average to boost your confidence for the written test.