Retriv: Voice Flashcards
Flashcards you answer aloud
Free · Designed for iPad. Not verified for macOS.
Now smarter at hearing long answers and maths, with live classroom updates from teachers and a redesigned iPad experience.
Retriv is the flashcard app that listens. Instead of flipping a card and grading yourself, you say the answer out loud — and Retriv checks it. Answering from memory, out loud, is one of the most effective ways to learn, and Retriv makes it the way you study.
STUDY OUT LOUD
• Each question is read to you, then Retriv listens for your answer
• Fair, strict grading: the right answer counts however you say it, but partial answers and guesses don't
• Understands long answers, hundreds of sound-alike words (peace and piece, Wales and whales), and maths spoken naturally: "a squared plus b squared," "divided by," "over"
• If speech ever mishears you, see what it heard next to the answer and count it with one tap
• Can't talk right now? Type your answer instead, with a maths keyboard for symbols like ², √ and π
LEARN IT, DON'T JUST SEE IT
• Miss a card and Retriv coaches you: hear the answer, then say it three times
• Every missed card comes back in a Recap Round at the end, so nothing slips through
• Spaced review brings cards back right before you'd forget them
• Skip a card and it comes back around until you've answered it
• Leave any time and pick up exactly where you left off
MAKE LESSONS IN SECONDS
• Photograph a page of notes, a worksheet or a textbook, and Retriv turns it into question-and-answer cards
• Crop and rotate the part of the page each card should show, or keep cards text-only
• Type your own cards, add photos and diagrams, then edit, reorder or delete them any time
• Or start right away with ready-made lessons from the Library
FOR CLASSROOMS
• Teachers create a class and share a code; students join in seconds
• Shared lessons appear on every student's device automatically, and stay up to date when the teacher edits them
• Post announcements to the whole class
• See how the class is doing: progress, accuracy over time, and which questions need reteaching
• Co-hosts and join approval for teachers who want more control
STAY MOTIVATED
• Daily goals, study streaks and badges
• Study reminders on the days and times you choose
• Aloft: a word game built from your own lessons for a quick break that still counts
BUILT FOR iPHONE AND iPAD
A calm, nature-inspired design that gets out of the way, with a layout made for each screen.
Retriv works for any subject: vocabulary, history, science, maths formulas, citizenship, exam prep, and anything else worth remembering.
Ratings & Reviews
Retriv 2.0 is our biggest update yet.
SMARTER LISTENING
• Long answers are understood far better. Say "The Declaration of Independence" and small mishearings no longer count against you.
• Retriv now knows hundreds of words that sound alike: peace and piece, Wales and whales, principal and principle.
• Maths out loud: say "divided by," "over," or "a squared" and it's understood.
• New "I said it right" button. If speech misheard you, see what it heard next to the answer and count it with one tap.
• No more cutting you off mid-answer, and Retriv never hears its own voice as your answer.
STUDYING
• Leave mid-lesson and come back exactly where you left off, Recap Round included.
• Tap Repeat during practice to see the question again.
• Long answers now shrink to fit the card.
• Smoother card flips and swipes.
CREATING CARDS
• Edit, delete, add and reorder cards in any lesson.
• Rotate photos while choosing what goes on a card.
• Replace or remove a card's photo, or remove pictures from every card in a scan with one tap.
CLASSROOMS
• Teacher edits now reach students automatically: new cards, changed pictures, renamed lessons.
• Tap a shared lesson to start studying it right away.
• Classes refresh on their own, so new announcements and lessons appear within seconds.
• A refreshed class page with a cleaner announcement board.
iPAD
• A redesigned iPad layout: a dashboard home, lessons in a grid, and more room on every screen.
Plus Aloft now uses word answers only, better handling of phone calls, and many smaller fixes.
The developer, Indigo Transistor, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Contact Info
- User Content
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Indigo Transistor
- Size
- 12.2 MB
- Category
- Education
- Compatibility
Requires iOS 26.2 or later.
- iPhone
Requires iOS 26.2 or later. - iPad
Requires iPadOS 26.2 or later. - Mac
Requires macOS 26.2 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.2 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 IndigoTransistor
