Best Api Apps

221+ iOS apps curated and reviewed

4.2 avg rating
20 free apps
Updated June 2026

Whether you're new to api or looking for an upgrade, our curated collection of 221+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Top Picks for Api

API MyCrewCare#1

API MyCrewCare by Lodging Solutions, LLC

Reservation and Feedback
Editor's Choice
✈️ Travel
2.3(29 ratings)
Free
API MyCrewCare screenshot 1
API MyCrewCare screenshot 2
API MyCrewCare screenshot 3
API MyCrewCare screenshot 4

Manage hotel and transportation reservations offline. Access hotel information, crew benefits, and provide feedback on suppliers. Exclusively for Accommodations Plus International clients.

symplr Workforce#2

symplr Workforce by symplr software LLC

Strong Contender
💼 Business
2.3😞(2K ratings)
Free
symplr Workforce screenshot 1
symplr Workforce screenshot 2
symplr Workforce screenshot 3
symplr Workforce screenshot 4
symplr Workforce screenshot 5
symplr Workforce screenshot 6

This app allows employees to manage their schedules, request time off, and clock in/out with location verification. Managers can oversee employee timecards, approve requests, and monitor staffing levels to ensure optimal workforce management.

What We Love

  • 🚀 Fast and efficient
  • 👍 Convenient for clocking in/out
  • 🔒 Secure login options

Room to Improve

  • 🐛 Frequent login issues
  • 🔍 Confusing schedule display
  • ⏱️ Slow app performance
Teste - API, Scripts, Terminal#3

Teste - API, Scripts, Terminal by FJEDI

Developer Workspace
Worth Considering
🛠️ Developer Tools
4.7😊(496 ratings)
Free
Teste - API, Scripts, Terminal screenshot 1
Teste - API, Scripts, Terminal screenshot 2
Teste - API, Scripts, Terminal screenshot 3
Teste - API, Scripts, Terminal screenshot 4
Teste - API, Scripts, Terminal screenshot 5
Teste - API, Scripts, Terminal screenshot 6

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.

What We Love

  • 👍 User-friendly and modern UI
  • 🚀 Comprehensive and intuitive
  • 🔓 No in-app purchases
  • 🛠️ All-in-one dev tool

Room to Improve

  • 🐛 Crashes and data loss after updates
  • 🔍 Lack of cloud backup/sync
  • 🔧 Difficult to manage requests/collections

More Api apps to explore

4
API Events.
API Events.
API Events.
by American Petroleum Institute
Free

Stay informed about API conferences and events. Access detailed information on agendas, speakers, and exhibitors. Connect with fellow attendees to enhance your networking experience.

Conference agenda accessSpeaker informationExhibitor and sponsor details
💼 Business
(3)
free
5
HTTPBot: API & HTTP Client
HTTPBot: API & HTTP Client
HTTPBot: API & HTTP Client
Make Requests, Debug APIs
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.

Send HTTP/HTTPS and WebSocket requestsInspect JSON, HTML, and XML responsesImport/export Postman collections
🛠️ Developer Tools
(1.3K)
free with in-app purchases
6
GitHub
GitHub
GitHub
Projects, ideas, & code to go
Free

Manage your code projects, review changes, and collaborate with your team on the go. This app allows you to stay updated with notifications, respond to issues, and browse files and code from anywhere.

Browse notificationsRead, react, and reply to Issues and Pull RequestsReview and merge Pull Requests
🛠️ Developer Tools
(34K)
free with in-app purchases
7
API Tester ‎
API Tester ‎
API Tester ‎
Test APIs
Free
🔧 Utilities
(0)
8
SendMan: API & HTTP Client
SendMan: API & HTTP Client
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.

Build and test APIsMonitor API performanceOrganize requests and collections
🛠️ Developer Tools
(0)
ad-supported
9
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
10
Chat API – AI Wrapper
Chat API – AI Wrapper
Chat API – AI Wrapper
Your AI, Your Keys, Your Way
Free

Access powerful AI models locally or through cloud APIs. This tool offers flexible integration with GPT-4, OpenAI, Grok, and local LLMs for diverse tasks like coding, drafting, and research.

Private local LLM support with OllamaOpenAI and Grok API integrationBuilt-in text-only GPT-4 model
🛠️ Developer Tools
(4)
free with in-app purchases
11
Postmon - Rest API Client
Postmon - Rest API Client
Postmon - Rest API Client
HTTP API Client
Free
🛠️ Developer Tools
(0)
12
Workforce Tools
Workforce Tools
Workforce Tools
by The Home Depot, Inc.
Free

Access time cards, review schedules, and submit time off requests from a single, centralized mobile experience. This app integrates with your existing workforce management system for a seamless workflow.

View time cardsReview schedulesSubmit time off requests
💼 Business
(119K)
free
13
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
14
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
15
Curly — REST API Client
Curly — REST API Client
Curly — REST API Client
REST API Client for Developers
Free
🛠️ Developer Tools
(0)
16
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
17
ApiClient
ApiClient
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.

Create HTTP/HTTPS requestsImport/export Postman collectionsSend Firebase notifications
🛠️ Developer Tools
(0)
free with in-app purchases
18
API Client - REST HTTP Tester
API Client - REST HTTP Tester
API Client - REST HTTP Tester
REST API Tester & HTTP Client
Free
🛠️ Developer Tools
(0)
19
Onmi: Networking & API Request
Onmi: Networking & API Request
Onmi: Networking & API Request
WiFi Toolkit App for Pro 2023
Free

This app offers a suite of tools for network analysis and API debugging, reducing reliance on a PC. It includes features for in-depth network system analysis, direct POST and GET API debugging, and server pinging. Additionally, it helps users find and connect to free shared WiFi networks nearby.

Network system analysisAPI debugging (POST/GET)Server ping tool
✈️ Travel
(602)
free with in-app purchases
20
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

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