Klango

The flashcard app without subscriptions, accounts, or ads. Import any deck. Five focused study modes. Spaced repetition that works. Yours, offline, forever.

The flashcard app that doesn't ask for anything.

Three things matter:

— BUY ONCE. YOURS FOREVER. No subscriptions. No ads. No account. No notifications nagging you. Pay once, learn forever.

— BRING YOUR EXISTING DECKS. Import standard .apkg and .colpkg deck files in one tap. Your terms, your schedule, your progress — carried over instantly. No conversion, no cloud upload, no account creation.

— BUILT TO ACTUALLY LEARN. Spaced repetition (SM-2 algorithm). Five focused study modes: Flashcards, Learn, Write, Test, Match. Smart part-of-speech detection across 25+ languages.

EVERYTHING ELSE • Fully offline — your data never leaves your device • Universal app: iPhone, iPad, Mac — one purchase covers all • 30 interface languages, handcrafted translations • Light Mode and Dark Mode • VoiceOver and Dynamic Type ready • Light, fast, distraction-free • No tracking. No analytics. No third-party SDKs.

PERFECT FOR • Students drilling vocabulary for standardized tests and certifications • Language learners (Spanish, French, German, Italian, Japanese, Chinese, and more) • Professionals studying for industry exams • Anyone who wants to remember something, reliably

Klango is made by one independent developer who got tired of subscription-everything. Buy it once. Own it forever.