Free beta · works with your AI
Master anything in half the time.
Recall beats re-reading: 61% vs 40% remembered a week later.1
Half the time is our aim, based on learning research. We haven't measured our own users yet. See the basis
Rote memorization, re-reading and highlighting feel like studying. They leave little behind.2
A new skill means months of being a beginner all over again. So you put off the thing you're curious about.
Getting good at something shouldn't take a private coach or years of trial and error. It should be built in.
Made by Nick Urban · School of Biohacking Instructor
Starting over as a beginner is the worst part. MasteryOS makes sure you never guess your way through it.
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CHEK Holistic Lifestyle Coach Level 2
Trained at the Paul Chek Institute in root-cause, foundations-first coaching.
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Neuroscience, computer science, behavioral economics
Studied in college. I work as a data scientist.
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Mastered means alone, twice, a week apart
Help never counts. A miss breaks the streak. The record can't flatter you.
The 3-move loop
Three steps. You never plan a session.
The science of how people master skills is built in, so a session takes three moves: open the reminder, do the attempt, give one quick rating.The science of how people master skills is built in, so a session is one attempt and one honest rating.
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Name the skill
Tell your AI what you want to master. A short game that gets harder until you miss finds where you start, so you skip what you already know.
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Do today's session
Three moves: open the reminder, do the attempt, give one quick rating of how sure you were and whether you had help.Your AI reminds you. You do the attempt, then say how sure you were and whether you had help.
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Watch the record
A skill counts as mastered only when you did it alone, twice, a week apart.
Your AI coaches. MasteryOS runs the school.
- Finds your level
- Decides what is due
- Adjusts the difficulty
- Keeps an honest record
Recalling instead of re-reading, spacing instead of cramming.24
Start each session settled
Two slow sighs open every session, on by default. A more relaxed nervous system takes in, processes and retains information better.
Name one skill. Start there.
Free during the beta, and it works with the AI you already use.
Cram it the old way and most of it is gone within a week.3 The skill that could become your next obsession never starts.
What changes
Start the thing you've been putting off. Watch yourself get good.
The coach finds your level, hands you each session in three moves and keeps the record, so the beginner phase has a path.
Progress
Conversational Spanish
Mastered
Your path
- Greetings and politenessMastered
- Present tense verbsMastered
- Ordering foodMastered
- Asking for directionsMastered
- 20-minute unprepared chatMastered
Works for skills like
- Conversational Spanish
- Wing foiling
- Juggling
- Biochemistry
- Whatever you're curious about
From “I avoid new things, because I dread the long beginner years” to “I pick up new obsessions whenever I’m curious, without dreading the beginner years, and I have the record to show it.”
Coming soon
Your first 30 days of any skill, planned.
Name a skill. Get a first-month plan with where to start and what each week looks like, so the beginner phase has a map.
Questions
Is “half the time” real?
It’s our aim, and it rests on published research. In one study, students who practiced recall remembered 61% a week later while reading the passage 3.4 times. Students who re-read it 14.2 times remembered 40%.1 A review of 254 studies found spaced practice beat massed practice, 47% to 37%.4 Those studies tested memory for text and word lists, not every skill, and we haven’t measured MasteryOS users yet. Your record tracks your own speed.
Which AI does it work with?
The ChatGPT or Claude you already use. Your AI does the coaching. MasteryOS keeps the plan, the schedule and the record.
Do I need a coach or a partner?
No. The whole path works solo. A coach, training partner or native speaker can help, and nothing requires one.
Is it safe for physical skills?
MasteryOS gives practice guidance, not supervision. It can’t see your conditions, so you decide when a session is safe. Physical paths include stop rules.
What does it cost?
Free during the beta.
No ads and no data sales. Export or delete your record anytime. Privacy policy
Pick one skill. Skip the dread of starting.
Free during the beta. Works with ChatGPT and Claude.
Research basis
- Roediger & Karpicke (2006), Psychological Science, Experiment 2. 180 undergraduates studied short prose passages. One week later, students who studied once and took three recall tests remembered 61% of the idea units, versus 40% for students who read the passage four times. The test group read the passage 3.4 times on average, the re-read group 14.2 times. Five minutes later, re-reading scored higher (83% vs. 71%), so the benefit shows up for lasting memory.
- Dunlosky, Rawson, Marsh, Nathan & Willingham (2013), Psychological Science in the Public Interest. Reviewed ten study techniques. Highlighting, underlining and re-reading were rated low utility. Practice testing and distributed practice were rated high utility.
- Murre & Dros (2015), PLOS ONE. Replication of Ebbinghaus’s forgetting-curve experiment with one subject learning lists of meaningless syllables. The time saved when relearning a list fell from 47% at 20 minutes to 17% at 6 days (and 4% at 31 days, lower than other replications).
- Cepeda, Pashler, Vul, Wixted & Rohrer (2006), Psychological Bulletin. Meta-analysis of 254 studies (14,811 participants) of verbal recall. Spaced practice averaged 47.3% correct versus 36.7% for massed practice.
These studies tested memory for text and word lists, mostly in college students. “Half the time” is our aim for mastering a skill. MasteryOS hasn’t measured its own users yet, and your record tracks your own speed.