Free mini-apps by Murphy Cloud — no sign-up, instant to use, installable to your phone's home screen like a native app, and usable offline.

Learn tech English like flashcards
1000 curated technical English terms, grouped by topic with spaced repetition — build your tech vocabulary in spare moments.
Scan with your phone, then follow the guide below to install
Read, memorize, and savor classical poems
A pocket poetry library for everyone who loves verse — from school must-learns to the great Tang and Song classics, with translations, notes, and analysis; five modes (cards, completion, recognition, fill-in, scenario) to read, memorize, and truly savor poems that stay fresh.
Scan with your phone, then follow the guide below to install
A topic a day — speak it out
Impromptu speaking and public-speaking practice: a fresh topic every day with a timer and structure prompts, helping you build clear, ready-to-go expression — from icebreaker intros to making your point, level up your speaking and communication in spare moments.
Scan with your phone, then follow the guide below to install
Scan to play — drinks as chips
A three-card party game as an H5 app: one person hosts a room as dealer, everyone else scans a QR code to take a seat, and drinks stand in for chips. No sign-up, no download, no backend — just tap on your phone to deal and get the party going.
Scan with your phone, then follow the guide below to install
These are PWAs (Progressive Web Apps) — no app store needed; just open the page and add it as a home-screen icon.
Open the app in Safari → tap the Share button → choose "Add to Home Screen" → done. The icon appears on your home screen and opens like a native app.
Open the app in Chrome → tap the top-right menu → choose "Install app / Add to Home screen" → done. An "Install" prompt may also appear in the address bar.