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
Re-reading and highlighting feel like studying. Little of it sticks.2
So a new skill means months of feeling like a beginner.
Getting good shouldn't take a private coach.
Your guide
Being a beginner again is the part you dread.
MasteryOS gives you the method, the plan and an honest record, so you never guess.
-
Built on learning research
Recall and spaced practice, the two techniques a major review rated most useful.2
-
A record that can't flatter you
Mastered means you did it alone, twice, a week apart. Help never counts.
Made by Nick Urban, CHEK Holistic Lifestyle Coach Level 2 and School of Biohacking Instructor
The 3-move loop
Three steps. You never plan a session.
-
Name the skill
A short game finds your level, so you skip what you know.
-
Do today's session
Open the reminder, do the attempt, give one quick rating.Do the attempt, then say how sure you were.
-
Watch the record
It counts as mastered after two solo passes, a week apart.
Your AI coaches. MasteryOS runs the school.
Name one skill. Start there.
Free during the beta, and it works with the AI you already use.
Opens your email app.
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
You mastered it
Your path
- Greetings and politenessMastered
- Present tense verbsMastered
- Ordering foodMastered
- Asking for directionsMastered
- 20-minute unprepared chatMastered
Works for skills like
- SpanishLanguage
- GuitarMusic
- Golf swingSport
- ChessStrategy
- DrawingCreative
- Public speakingCareer
- BiochemistryScience and finance
- JugglingBody
- JapaneseLanguage
- PianoMusic
- SurfingSport
- PokerStrategy
- PhotographyCreative
- SalesCareer
- Financial derivativesScience and finance
- HandstandsBody
- Wing foilingSport
- NegotiationCareer
- CodingCareer
Whatever you're curious about
Become someone who starts new skills with confidence.
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, based on research: recall beat re-reading 61% to 40% a week later,1 and spaced practice beat cramming 47% to 37%.4 We haven’t measured MasteryOS users yet, so 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 is the two-sigh start?
Two slow sighs open every session, on by default. A more relaxed nervous system takes in, processes and retains information better.
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.
Opens your email app. Free during the beta. Works with ChatGPT and Claude.
Research basis
- Roediger & Karpicke (2006), Psychological Science, Experiment 2. 180 undergraduates studied short prose passages. A week later, recall practice kept 61% of the ideas versus 40% for re-reading. At five minutes, re-reading led (83% vs. 71%), so the gain is in 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.