Klango

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.