Skooless – Swipe through 5-min micro-lessons instead of TikTok (PWA)
TikTok for learning, but lesson quality and retention unclear without trying it.

Micro QR support is niche, but free QR generators already dominate.
Developers needing quick QR code generation
QR Code Generator · GoQR.me · QRickit
TikTok for learning, but lesson quality and retention unclear without trying it.
It flips the doomscroll mechanic into a micro-learning loop with swipeable "Intel Cards" and a fun unlockable retro "Intel Archive" terminal for deep dives — neat UX framing. The no-login PWA and terminal aesthetic are clever hooks, but the concept is familiar; success will depend on content depth, retention mechanics (spaced repetition/personalization), and how sticky the loop actually is.
Offline PWA works on airplanes — but iLovePDF and PDF24 already dominate this space.
Visualizes kanji structure as a recursive DAG when WaniKani only uses static mnemonics.
Real-time 3D quantum solver in browser, but device compatibility fragile and use case narrow.
Crosswords with spaced-repetition when Anki flashcards feel like homework.