SendMan vs CaspiAPI

SendMan is a full-featured API client for iPhone and iPad — build, send, and test HTTP requests anywhere, without opening your laptop. Debug a REST endpoint on the train, test a GraphQL query between meetings, or inspect a live WebSocket: SendMan puts a complete API testing toolkit in your pocket. Built natively for iOS, it's fast, works offline, and is made for developers, QA engineers, and mobile teams who need real API tooling on the go. BUILD & SEND REQUESTS - Full HTTP request builder — GET, POST, PUT, PATCH, DELETE & more - Add headers, query params, and request bodies in seconds - Reuse {{environment}} variables across URL, headers, params & body - Write tests and validate responses automatically - Generate ready-to-use code from any request ORGANIZE YOUR WORK - Save and group requests into Collections - Switch between multiple Environments and configurations - Full request History with status codes and response times - Instant search across everything GO BEYOND REST - GraphQL — run queries, mutations, and subscriptions - WebSocket — test real-time connections live - Traffic Capture — intercept and inspect HTTP/HTTPS traffic in real time - Monitor — run requests on a schedule and watch performance DEVELOPER TOOLS - Mock Data — auto-generate realistic JSON to test your APIs - JSON Diff — compare two responses and spot every change instantly - Dashboard with success, failure, and average response-time metrics - Response insights, charts, and performance tracking FULL REQUEST CONTROL - Fine-tune timeouts, max response size, and HTTP version - Toggle SSL certificate verification for self-signed certs - SSL/TLS key logging for deep debugging - Light & dark themes plus custom color palettes PRIVATE BY DESIGN Your requests, history, and data stay on your device. SendMan works offline and never sits between you and your APIs. Privacy Policy: https://sendman.netlify.app/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

CaspiAPI is a fast, native API client for developers — a Postman alternative that runs beautifully on iPhone, iPad and Mac. Build requests, inspect responses, run whole collections and automate tests, all from one polished app that works offline and keeps your data encrypted on-device. Already using Postman? Import your collections and environments in seconds and keep working — your pre-request and test scripts run exactly as they do on the desktop. BUILT FOR REAL WORK - Full REST/HTTP support — GET, POST, PUT, PATCH, DELETE and more - Multi-tab editor: query params, headers, body (JSON, form, raw), auth - Syntax-highlighted JSON responses with status, timing and size - Request history so you never lose what you sent POSTMAN-COMPATIBLE SCRIPTING - Run pre-request and test scripts with a real JavaScript engine - pm.* API support — pm.test, pm.environment, pm.response and more - Built-in CryptoJS for HMAC / SHA-256 signing and custom auth flows - Collection Runner executes requests in sequence and chains variables: a value captured in one request is instantly available to the next POWERFUL VARIABLES & ENVIRONMENTS - 5-level variable scope — global, collection, environment, and beyond - Switch environments instantly to move between dev, staging and prod - Edit any scope inline without leaving your request PRIVATE BY DESIGN - All data stored locally in an AES-256 encrypted database - The encryption key lives in the Secure Enclave (Keychain) — never in plain text - Works fully offline; your requests and secrets stay on your device NATIVE ON EVERY SCREEN - One app for iPhone, iPad and Mac — buy once, use everywhere - Adaptive layout: touch-friendly action sheets on iOS, full menus on Mac - Beautiful dark and light themes that follow your system automatically - Clean typography built for reading code Whether you're testing a production API on your phone, debugging a webhook on iPad, or running a full test suite on your Mac, CaspiAPI gives you a focused, secure and genuinely fast workflow. Download CaspiAPI and bring your API workflow with you — everywhere.