Comparison

API & HTTP Client vs 3X Client

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

API & HTTP Client

This powerful tool allows developers to send and debug API requests, including REST, GraphQL, and WebSockets, directly from their mobile device. It offers comprehensive features for testing, inspecting responses, and managing API workflows with support for various authentication methods and import/export options.

Highlights
  • API client and request testing
  • REST, GraphQL, and WebSocket support
  • MCP (Model Context Protocol) integration
  • JSON viewer and response inspector
  • OpenAPI, Swagger, and Postman import/export
  • Multiple authentication methods
  • Environment variables and workflow automation
Features
Read full description

This app is a powerful API Client and API Testing tool built for developers who need to send requests, inspect responses, and debug APIs anytime, anywhere. Whether you're working with REST APIs, GraphQL, WebSockets, or MCP (Model Context Protocol) servers, the app provides everything you need in one place. Test APIs faster, troubleshoot issues efficiently, and analyze responses with an intuitive interface designed for both beginners and experienced developers. - Key Features: + API Client & Request Testing * Send HTTP and HTTPS requests using GET, POST, PUT, DELETE, PATCH, HEAD, and OPTIONS. * Create and edit requests with an intuitive request editor. * View detailed request and response information, including headers, body, status code, response time, payload size, SSL details, and more. * Debug APIs without needing access to your desktop or terminal. + REST API, GraphQL & WebSocket Support * Test and debug REST APIs with ease. * Native GraphQL support with query editor, variables editor, and schema explorer. * Connect to WebSocket servers for real-time communication and testing. + MCP (Model Context Protocol) * Connect to remote MCP servers * Browse available tools, prompts, and resources. * Invoke MCP tools directly from the app. + JSON Viewer & Response Inspector * Automatically format and highlight JSON, HTML, XML, and plain text responses. * Easily inspect API responses for debugging and development. * Filter response data using JSONPath and XPath expressions. + OpenAPI, Swagger & Postman * Import and export Postman Collections and Environments. * Sync collections with your Postman Cloud account. * Support for OpenAPI and Swagger specifications. * Browse API documentation directly inside the app. + Authentication Supports multiple authentication methods, including: * Basic Authentication * Digest Authentication * OAuth 1.0a * OAuth 2.0 * JWT (JSON Web Token) * Additional authentication schemes with secure credential storage. + Productivity * Save reusable variables using Environments. * Import and export collections through iCloud Drive, Dropbox, and other document providers. * Automate API workflows with Apple Shortcuts. Whether you're a backend developer, mobile developer, frontend engineer, QA tester, or DevOps engineer, this app provides a complete solution for API testing, API debugging, REST API development, GraphQL, WebSocket, MCP, and OpenAPI workflows—all from your mobile device.

About

3X Client

Features
Read full description

3X Client is a native iOS administration application for managing 3x-ui server panels. Features: - Client Management: Edit, update, and manage inbound client configurations, data usage limits, expiry dates, and IP limits. - Server Status: View overall system health, including CPU load, memory usage, disk space, and network throughput. - Log Viewer: Read live server logs to inspect system events and troubleshoot connections. - Protocol Support: Visualizes VLESS, VMess, Trojan, Shadowsocks, and WireGuard inbounds configured on your server. Requirements: Requires a running 3x-ui server instance. This app is an administrative interface and does not provide built-in VPN server infrastructure or proxy connections.

Screenshots

API & HTTP Client4 screens
3X Client4 screens

Verdict

The call

API & HTTP Client and 3X Client are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ScorecardNo meaningful differences
API & HTTP Client versus 3X Client: the parameters behind the verdict, then further details
ParameterAPI & HTTP Client3X Client
PriceFreeFree
Rating5.0 (3 ratings) — better—
Number of ratings3 — better—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.6 — better18.0
Further details — not scored
Size38 MB9 MB
Age rating4+4+
DeveloperThien An Studio LLCArtem Tselikov

In-app purchases

None

API & HTTP Client

No in-app purchases

None

3X Client

No in-app purchases

Questions

Is API & HTTP Client free?
API & HTTP Client is free to download, with no in-app purchases.
Is 3X Client free?
3X Client is free to download, with no in-app purchases.
Do API & HTTP Client or 3X Client have ads?
Neither API & HTTP Client nor 3X Client shows ads.

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