Engram
Practice smarter,
not longer.
A practice tool for musicians who take their craft seriously. Interleaved retrieval drills from your own pieces — built on how the brain actually consolidates motor skills.
The premise
Block practice feels productive.
Interleaved practice is.
Running the same passage ten times in a row feels like progress. Decades of motor-learning research say otherwise. What consolidates a skill into long-term memory is retrieval— switching between passages, recalling each one cold, sitting with the friction.
Engram organizes your repertoire into sections and chunks, then generates interleaved drills that move between them in research-grounded patterns. The sessions feel harder. They stick.
Two modes
Gradual when you’re learning.
Random when you’re ready.
Gradual
Near → far
Contextual interference builds across sequences. Items that share a section stay together early, then spread apart as your motor system catches up. The right shape for new repertoire.
Random
Full shuffle
Maximum interleaving from the first sequence. No two identical items consecutive. The shape that researchers reach for when they want the upper bound of consolidation.
A quiet record
A library that holds your repertoire.
A history that holds your work.
What’s inside
Built for the way you actually practice.
Pieces, sections, chunks
Three layers of organization that map to how musicians already think. Sections like A / B / A reprise. Chunks like specific measures, transitions, hard ornaments.
Batch add with shorthand
“A-F”. “Var. 1-30”. “T.1-8”. The parser expands the ranges so building out a piece takes seconds, not minutes.
Two granularities, two modes
Rotate whole sections or drill individual chunks. Gradual or Random. Four shapes that cover every stage of learning a piece.
Session history that stays
Completion, mode, granularity, duration. A record of the work, not a streak to defend.
One-handed where it matters
The practice screen is built for use with an instrument in your other hand. Big tap targets. No accidental modals.
Local-first, no account
Your pieces and sessions never leave your device. No analytics, no cloud, no tracking. Works offline.
The research
Conservative readings of a deep literature.
Engram’s defaults — 3 to 6 items per session, 2 to 3 reps each, 5 to 8 sequences, no two identical items consecutive — come from the contextual-interference literature. You can adjust any of it.
Porter & Magill (2010) · Carter & Grahn (2016) · Mathias & Goldman (2024) · Czyż & Wójcik (2024)
Pricing
Free to try.
Pay once, or pay yearly.
One piece and seven days of history are free, forever. Engram Pro unlocks the rest.
Annual
Auto-renews. Cancel anytime.
Lifetime
One payment, all future Pro features.
- — Unlimited pieces
- — Full session history
- — CSV export of your practice log
- — iCloud sync (coming soon)
Annual subscription auto-renews unless canceled at least 24 hours before the period ends. Manage in your Apple ID settings. See Privacy Policy.
Common questions
A few things people ask.
Do I need to read research papers to use this?+
No. The defaults are sensible. Open a piece, type in your sections, generate a session, practice. The science is in the shape of the drill — you don't need to understand it for it to work.
What instruments is this for?+
Any instrument with repertoire that can be broken into passages. Pianists, violinists, cellists, guitarists, drummers, singers. Anyone who learns by working chunks and putting them together.
Why interleaved instead of just repeating a passage?+
Blocked repetition rehearses the same motor command in the same context — your motor system stops retrieving it and starts running on autopilot. Interleaving forces a fresh retrieval each time, which is what consolidation is built on. It feels slower in the moment and produces durably better playing over weeks.
Is my data sent anywhere?+
No. Pieces, sections, chunks, and session history are stored locally on your iPhone using Apple's SwiftData. No analytics, no account, no network calls except the StoreKit transaction handled by iOS.
What's in the free tier?+
One piece, unlimited sessions on it, and seven days of session history. Enough to decide whether the workflow fits how you practice before deciding on Pro.
Does it work on iPad?+
Yes. The layout centers on a column and the floating tab bar caps at a comfortable width, so it reads well at any size.
Begin
Practice the work,
not the feeling of work.
Add a piece. Break it into pieces. Let the drill find the friction.
Engram makes no medical or therapeutic claims. It is a practice tool, not an instructor.