CleverDeck

CleverDeck uses spaced repetition algorithms to make learning much more efficient and longer-lasting. Tell the app whether or not you remember something by swiping cards right or left. CleverDeck schedules your reviews for you, while giving you new cards each day.
CleverDeck is especially useful for language learners who want an efficient way to learn vocabulary. CleverDeck includes 3000-word decks for most major languages. Decks were created with the help of teachers and language professionals and include high-quality, hand-picked imagery, native-speaker audio, example sentences, and transliterations. Decks are customizable so you can study words as you discover them in your daily life - or you can use the default order, roughly organized by frequency.
CleverDeck can also be used to create completely custom decks and cards. Use CleverDeck to study anything: medical terminology, the periodic table, trivia, and everything else that fits on a card. Cards can include four fields, an image, and audio.
Other CleverDeck features include:
- Sync between devices.
- Customize card display to create audio or image-only cards
- Study cards in multiple ways using siblings
- Customize the spaced repetition algorithm
- Edit our cards to use your own sentences or images
- Create "three-sided" cards to, for example, quiz yourself on foreign language sentences.
- Prioritize cards by category.
- Cache future content if you're planning a trip.
- Visualize your progress and view stats on your retention.
- Quick and very personal support (I'm an indie developer and emails go straight to my inbox.)
CleverDeck is always free for you to create your own decks and cards. An auto-renewable subscription is required for unlimited access to CleverDeck's premium content. The app contains a freemium model that should let you decide whether it's worth paying for.
CleverDeck subscriptions are auto-renewable which means that once purchased they will be auto-renewed within 24 hours prior to the end of the subscription period. You can subscribe to CleverDeck for one month or one year terms. CleverDeck subscriptions provide full access to all of CleverDeck's premium content (lifting the 100 card limit of the free version). Your iTunes Account will continue to be charged until you cancel the subscription at least 24 hours before period end. You can manage or cancel your subscriptions by going to your Account Settings on your device. Payment will be charged to your iTunes account at the confirmation of your purchase.
For terms of service, please visit http://cleverdeck.com/tos/.