Tester vs CaspiAPI

The first mobile app to handle any developer task on the go. Main features: - REST, GraphQL, WebSocket, SOAP, JSON RPC, XML, HTTP, HTTPS, etc. - All types of HTTP requests: GET, POST, PUT, PATCH, DELETE, HEAD, OPTIONS, COPY, LINK, UNLINK, PURGE, LOCK, UNLOCK, PROPFIND, VIEW. - Powerful GraphQL editor with full-scale experience: body editor with Queries, Mutations, Subscriptions and syntax support; variables editor; documentation explorer; request settings and metadata. - WebSocket testing tool. Handles connection and message exchange via WS or WSS. - API calls with any kind of request data encoding and transfer type (query params, URLEncoded params, FormData, raw data, send files from device storage, cloud, remote server). - Settings. TLS can be skipped, redirects can be disabled, timeouts are adjustable. Weak SSL verification can be enabled and replaced with self-signed certificate. - Import request or collection by curl, link or file from your device. And naturally, there is any type of collection for you: Swagger, OpenAPI, Postman, YAML. - Need to share request in seconds? Deep link and cURL command supported. - Apple Watch app. Allows to send API requests directly from your wrist. - Integrations: Shortcuts, Widgets. Additional little things: - Autocomplete for most common headers keys. - Syntax highlighting; Auto formatting. - Optimized for viewing on any device screen. - Cookies. Collect, edit, create. - Request metrics. Measure request duration, response size, status code changing. - History of all request calls. - Request authorisation. Basic Auth with password and username. OAuth with header or query access token. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://tester.io/privacy-policy

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.