CertTool vs Simple cURL

If you want to know a little bit about a X.509 certificate CertTool has you covered. Just select a file in PEM or DER format that contains the certificate and it will show you some details. And if you just want to share the certificate to the app, you can do that as well.

Simple cURL is the essential tool for iOS developers and backend professionals who need to test, debug, and analyze API requests directly from their mobile device. With an intuitive interface and powerful features, it turns your iPhone or iPad into a portable API client. Key Features: Run complex cURL commands with support for custom headers Detailed response display including status code, headers, and body in readable format. Smart context menu to quickly copy specific parts of the response (full JSON, headers, or body) with a long tap on the response box. Dark mode and developer-optimized typography for extended reading. Who is this app for: iOS developers who need to test APIs in development environments (UAT, QA, Production). Backend engineers who want to verify endpoints from anywhere. Programming students learning about HTTP/REST protocols. DevOps professionals performing quick service monitoring. Why choose Simple cURL: Technical accuracy: Analyze every detail of the response, including hidden headers and status codes. Optimized for iOS: Seamless integration with clipboard, contextual keyboard, and Siri shortcuts. Guaranteed privacy: Zero tracking, your API data never leaves your device to be stored anywhere. Just copy a cURL from Charles proxy and paste into Simple cURL and see the responses