Last updated 07-03-2026
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Braintain
Braintain is a mobile flashcard app built around spaced repetition and visual memory. It targets language learners, students, and anyone who wants to remember vocabulary, idioms, or subject facts without rereading the same notes. Cards live in BrainPods, topic-based decks that ship with AI-generated images on every card.
Study sessions follow an active recall loop. You see a concept and image first, try to recall the meaning, flip to check, then rate yourself Again, Hard, Good, or Easy. Braintain runs the SM-2 algorithm on those ratings so each card returns when your memory is about to fade. Cards progress from New to Learning to Mature as intervals stretch out.
The app is free on iOS and Android with no account required to start. Premium adds unlimited BrainPods, ad-free studying, and Mira, an AI coach that reads your study history to surface strengths, weaknesses, and a daily review plan.
BrainPods include AI-generated images on every card to anchor concepts in visual memory
SM-2 spaced repetition schedules reviews from your Again, Hard, Good, or Easy ratings
Browse pre-packed decks across languages, science, and history, or build custom cards
Guess game mode quizzes you with multiple-choice distractors for active recall practice
Mira AI coach on Premium scores mastery, flags weak cards, and builds a daily study plan
Start on iOS or Android without creating an account
AI-generated images on pre-packed BrainPods give each card a visual memory anchor.
No account required to start studying on mobile.
Calm interface focused on recall without social feeds or heavy gamification.
Premium subscription prices are not listed on the website; billing runs through App Store or Google Play.
Free tier includes ads served by Google AdMob.
Study sessions are mobile-only; there is no browser-based training app.
Is Braintain free to use?
Yes. Braintain is free to download on iOS and Android, and you can start studying without an account. Braintain Premium is a monthly or annual auto-renewing subscription purchased through the App Store or Google Play. It unlocks unlimited BrainPods, ad-free studying, and full Mira AI coach analysis.
What platforms does Braintain support?
Braintain offers native iOS and Android apps. The braintain.app website covers product information and learning guides, but study sessions run inside the mobile apps.
What are BrainPods?
BrainPods are topic-based flashcard collections. You can browse pre-packed BrainPods with AI-generated images already on each card, or create your own decks with custom definitions and images from the built-in library or your camera roll.
How does spaced repetition work in Braintain?
After you reveal each card, you rate how well you remembered it: Again, Hard, Good, or Easy. Braintain applies the SM-2 algorithm to set the next review interval. Easy cards wait weeks; cards you miss come back sooner.
What is Mira in Braintain?
Mira is Braintain's AI learning coach. She analyzes your study history to produce a Learning Score, strengths and weaknesses by BrainPod, personalized insights, and a ranked study plan. The full analysis is available to Premium subscribers; the Coach tab and Learning Score are visible to all users.