console.mobi vs Reactive Playground

console.mobi is a mobile browser with built-in DevTools for web developers. Just like Chrome DevTools on the desktop, you can debug websites right on your phone — capture console logs and errors in real time, inspect the DOM tree, monitor network requests, and view Storage and Cookies. KEY FEATURES • Console: capture console.log / warn / error / info plus uncaught errors and promise rejections, with color-coded output • Elements: browse the live DOM tree and tap "Inspect" to highlight and examine any element • Network: monitor fetch / XHR requests with status, timing, headers and body • Storage: view localStorage, sessionStorage and Cookies • URL History: revisit pages quickly with a Chrome-style address bar • Bookmarks, dark / light themes, Japanese & English DEVELOPER POWER TOOLS (Pro) • Console REPL: run JavaScript directly on the current page and see results instantly • Storage Manager: edit and delete localStorage / sessionStorage / Cookies • Custom Snippets: save frequently used code and run it with one tap • Full-Page Screenshot: capture the entire page, including off-screen content, as a single image and share console.mobi Pro is available as a monthly or yearly subscription. Some of the features above require Pro. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.nos-co.jp/apps/privacy/console-mobi

Reactive Playground is a visual learning app for reactive programming. Instead of reading operator definitions only, you can play with marble timelines directly. Pick a category, open an operator, move events around, edit their values, clone items, remove them, or turn them into errors and completed events. The output updates live so you can understand what each operator really does. Explore operator categories such as: Transforming Filtering Combining Error Handling Utility Each playground shows a source timeline, an output timeline, a short explanation, and a code-style example. It is useful for learning ReactiveX concepts, reviewing operators, or quickly refreshing how a stream behaves before using it in code. Reactive Playground is made for developers, students, and anyone learning Rx-style reactive programming.