Retenio

Retenio is the smart flashcard app that helps you learn and retain knowledge permanently using the science-backed FSRS spaced repetition algorithm. KEY FEATURES: - Smart Spaced Repetition (FSRS-4.5): Schedules reviews at exactly the right time. - Rich Flashcards: Add text, images, and audio recordings to cards. - Unlimited Decks and Cards (Pro) - CSV Import and Export - Detailed Statistics: 35-day heatmap, maturity distribution, streak counter. - Home and Lock Screen Widgets - 4 Languages: English, Turkish, Spanish, German. - Beautiful Themes: Midnight dark mode and Parchment light mode. - Daily Reminders RETENIO PRO INCLUDES: - Unlimited decks and cards - Image cards - Audio recording on cards - Advanced statistics Start for free. Upgrade to Pro when you are ready. Retenio Pro Lifetime – $49.99 (one-time purchase) Retenio Pro Annual – $14.99/year Retenio Pro Monthly – $1.99/month Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/