Engram: Memory Training
Mnemonics x spaced repetition
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Tired of forgetting what you just learned? Find how you remember best with mnemonics, then FSRS reviews each card right before you forget. Private, fully on-device.
Stop blaming yourself for forgetting.
Forgetting isn't a lack of willpower—it's about how you encode and when you review.
Engram solves both, scientifically. Measure, train, and use your memory.
■ Why you forget
Without review, much of what you learn slips away over time. Engram uses FSRS, a state-of-the-art spaced-repetition algorithm, to predict the moment right before you forget—so each card resurfaces at the perfect time, with fewer reps and far better retention. Go beyond the endless drilling of ordinary flashcards.
■ Train HOW you remember
Learn five research-backed encoding strategies by doing:
• Rephrase — put it in your own words
• Self-reference — link it to your own life
• Teach — organize it as if explaining to someone
• Story — connect ideas into a narrative
• Visualize — picture it in your mind
On-device AI reacts to your encoding and gently helps when you get stuck. In "Teach" mode, a short Socratic dialogue deepens your understanding.
■ Memory Palace
Place what you want to remember along a familiar route, then walk it to recall. Practice one of the most powerful mnemonic techniques, right on your phone.
■ Brain Check
Mini-games measure traits like working memory and map your memory profile onto a radar chart. The longer you train, the clearer your own changes become.
Note: we don't claim mini-games broadly boost memory—this is only for measuring and visualizing your own traits.
■ Effortless capture
Turn photos, audio, or text into cards in seconds. Or sketch to remember.
■ Privacy first
Your study data and all AI processing stay entirely on your iPhone. Nothing is ever sent to a server.
■ Engram Pro
Unlimited decks, memory palaces, and AI, plus iCloud sync. ¥600/month or ¥4,000/year, with a 7-day free trial on the yearly plan.
Great for exams, language learning, terminology, names, and anything you want to remember for the long run.
―――
Honestly: Engram won't magically make you smarter. What it does is help you practice mnemonics, review at the right time, and see your own memory traits. A steady, proven path that turns "I can't remember" into "I've got this."
―――
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://gokigen.space/engram/privacy
Subscriptions renew automatically unless turned off at least 24 hours before the end of the period. Your account is charged through the App Store, and you can manage or cancel renewal anytime in your account settings after purchase.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Hirosuke Yonekubo, 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 Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Hirosuke Yonekubo
- Size
- 4.5 MB
- Category
- Education
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Engram Pro (Yearly) $24.99
- Engram Pro (Monthly) $3.99
- Copyright
- © 2026 hirosuke