cap-i, your AI typing coach
Practice rounds aimed at your weak keys, stars and XP for every one, and a checkpoint every 10 rounds to show how far you've come.
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cap-i · AI typing coach
A training plan built from your own keystrokes
Most typing tests tell you a number. This one tells you why it isn't higher — then trains exactly that, round after round, until you reach the speed you're aiming for.
- 01
Take the free benchmark
Type for 60 seconds. Every keystroke is timed and checked: which keys you miss, which letter pairs slow you down, how long you take to start each word, and whether you fade by the end of the minute.
- 02
Set your goal, get your plan
Tell cap-i what WPM you want to reach. It reads your numbers and builds round 1 around your weakest keys and pairs, with speed targets set just above what you can sustain today.
- 03
Earn stars, climb rounds
Hit the round's accuracy mark for one star and the next round unlocks; add speed for two or three stars and more XP. Every round is planned from everything you've typed so far — they never run out.
It starts with a free benchmark
Sixty seconds of ordinary words, every keystroke timed. The diagnosis shows your most-missed keys, your slowest letter pairs and where you pause, and your plan is built from it.
Take the free benchmarkREACTOKEY Pro
The benchmark is free. Pro unlocks every round cap-i plans and removes all ads.
Monthly
$1.99/month
$1.99/mo
6 months
$5.99every 6 months
$0.99/mo
Yearly
$9.99/year
$0.83/mo
Questions
Is cap-i free?
The 60-second benchmark and its full diagnosis are free, with or without an account. A free account also gets cap-i's written read and your first planned round. Playing the rounds — and every round after — is part of REACTOKEY Pro: $1.99 a month, $5.99 for six months, or $9.99 a year. Pro also removes every ad on the site.
How does cap-i decide what I practise?
Your keystrokes are analysed by code first — per-key miss rates, letter-pair timings, confusions, fatigue. The AI model reads that summary and chooses what the next round focuses on and how long its words are; the speed bar and accuracy mark are set by code from your results. It also writes half the round's words, packed with the keys and pairs you need, and every one is checked against REACTOKEY's own word lists before you see it; the other half are everyday words from those lists.
How do stars work?
Each round has three stars. One star is accuracy alone: finish the run at the round's accuracy mark and it passes, unlocking the next round, however fast you typed. Two stars add speed: the round's WPM bar at that same accuracy. Three stars ask for a little more speed and one point more accuracy. You can replay any round for more stars; XP is paid only for stars you haven't earned before.
Does cap-i change the bar if I'm stuck?
Yes. Every round's speed bar is worked out from your own typing: how hard that round's words are for you, and how your last round went. You start a little under your benchmark speed, and good rounds step the bar up until you're back at the speed you started with; after that it follows your improvement a step at a time, and a round that earns only one star brings the next bar down a little. The accuracy mark is set from how cleanly you're expected to type those words and how much your runs vary, so most runs clear it. Miss a round's accuracy mark three times in a row and it lowers itself by two points. You can also swap a round's words for a fresh set once a day.
Does it work on a phone?
Yes, but timing analysis needs a physical keyboard: phone keyboards deliver glide-typed and autocorrected words all at once. On a phone cap-i plans from your misses and confusions instead of keystroke timings.
Can I cancel Pro?
Any time, from your account page. You keep Pro until the end of the period you paid for, and your rounds, stars and XP stay on your account.
Just want a quick test? Try the free typing test or a practice drill.