Thumbs

How fast do you really type?

You know your desk typing speed. You have no idea what your thumbs do, and your thumbs are what you actually type with — for hours a day, on a keyboard that guesses at half your words. Every typing test online was designed for a desk: ten fingers, a Tab key to restart, a screen wide enough to read a paragraph ahead. Thumbs keeps what those tests got right and rebuilds the rest around a phone.

A test underway with 22 seconds left and 61 wpm showing. The words line, there and show are in black because they were typed correctly, because is marked with a red au and a red underline where the letters were transposed, and the caret sits inside group with the last two letters still grey. — Every mistake, as you make it

The setup screen with Time selected, a 15 second test chosen and punctuation switched on. The words below are generated as real sentences: School without man no run most after, new program. Might and eye program who. — Pick the test

The history screen showing a best of 44 wpm, an average of 31 over the last ten runs, and two tests listed with their speed, length, how long ago they were and their accuracy. — Every run, kept

What it does

Words per minute, measured properly. Correct characters over five, per minute — the same standard every typing test uses, so your number means something outside this app. Raw speed sits next to it, so you can see exactly what accuracy is costing you.
Mistakes you can see. Correct letters darken as you type them. Wrong ones turn red, showing the letter you should have hit rather than the one you did — because tells you more than a buzzer. A word you got wrong keeps its red underline after you have moved on.
No autocorrect, on purpose. Predictive text, autocorrect and smart punctuation are all switched off. A typing test should measure you, not your keyboard's guesses, so there is no suggestion bar above the keys.
Delete goes back a word. Backspace on an empty word steps into the previous one, so a word you fumbled four keys ago can still be repaired.
A tap when you slip. Every mistake gets a short haptic tick. Thumb typing gives you no other physical signal that a key went wrong, and a wrong letter can otherwise go unnoticed for a whole line.
Your history, on your phone. Every test is kept, with a personal best for each length and your average over the last ten runs.

Choose the test

Race a clock at 15, 30, 60 or 120 seconds, or type a fixed 10, 25, 50 or 100 words and see how long it takes. Turn on punctuation and the words arrive as real sentences, with capitals, commas and full stops — the shift key is part of typing, and most tests pretend it is not. Turn on numbers to practise the row everybody avoids.

The four numbers

Speed — correct characters over five, per minute.
Accuracy — the share of keystrokes that were the right key. Backspacing a mistake does not refund it: it still happened.
Raw — the same speed measure over everything you typed, mistakes included. The gap between raw and speed is the cost of your errors.
Consistency — how even your pace was. Two typists can average the same speed while one holds a rhythm and the other sprints and stalls; this is the number that tells them apart.

There is no account of any kind and no server behind this app. Your results are stored on your iPhone and go nowhere else. There are no analytics, no advertising identifiers and no third-party services — the app contains no networking code at all.

Requires

iOS 18.0 or later, on iPhone. Portrait only.