Your thoughts move faster than your thumbs.
The idea hits halfway through your walk. By the time you’ve thumbed out half of it, the rest is gone. Cofactor catches it as you say it and types it out clean, in any app on your iPhone or Mac.
The best idea you had today? You lost it typing.
The breakthrough that slipped away
It showed up mid-walk: the hook for the post that finally takes off. You stopped to fix one autocorrect, and the thread was gone.
Dictation that makes more work
Built-in voice typing hands you one breathless run-on. You spend longer fixing it than you would have spent typing.
The replies you keep putting off
The investor, the client, the friend who deserves more than “sounds good.” They wait until you’re at a laptop. Some never hear back.
Your phone should keep up with your brain. We built Cofactor because we were sick of losing good thoughts to bad typing.
Say it the way it comes out. Send it the way you meant it.
Pick an example. Left is what you said, right is what lands in the app.
A full keyboard that also listens.
Talk when it’s faster. Type when it isn’t. Same keyboard, every app.
Saved phrases
Your address, your bio, your “thanks, talk soon.” One tap instead of typing it for the hundredth time.
Your vocabulary
Teach it your names, brands and jargon once. It spells them right from then on.
Tone in one tap
Casual for the group chat. Polished for your boss. Same words, right voice.
Swipe typing (Beta)
Glide one-handed when you can’t talk out loud. Turn it on in Settings.
Make it yours
Bigger keys, your number style, accents, and cursor control on the space bar.
On your Mac too
Hit a shortcut, talk, and it lands in whatever app you’re in.
Free. Private. Works with zero bars.
Works offline
Your best ideas don’t wait for Wi-Fi. After a one-time language download, Cofactor runs entirely on your device, so the idea you have in the subway, the parking garage or the backcountry still gets written down.
Free where it counts
Dictation, cleanup and the full keyboard cost you nothing.
Private by default
No account needed to dictate. Nothing is ever sent to a server to be transcribed or formatted, on any plan. Encrypted sync is opt-in.
Never loses a word
Your audio is saved before it’s transcribed. If anything hiccups, that thought is waiting in History, one tap from Retry.
Send your voice to their servers, so they stop when your signal does.
Hands you the words and leaves the cleanup to you.
Clean text, on your device, with or without a connection.
Talking in under a minute.
Download Cofactor
Free on the App Store, plus a Mac app.
Turn on the keyboard
One switch in Settings. The app walks you through it.
Tap the mic and talk
In Messages, Mail, Slack, anywhere you type.
Your best ideas keep dying on the walk home. The long replies wait for “later.” Your thumbs stay the bottleneck.
You catch the idea the second it lands, answer the hard message while you walk, and publish the thing you’d otherwise have forgotten.
Start free. Upgrade when you want more.
Everything you need to talk instead of type is free, with no time limit.
Free
For anyone who thinks faster than they type.
- Unlimited on-device dictation, iPhone and Mac
- The full iPhone keyboard and the Mac app
- Cleanup and built-in writing tones
- Saved phrases and your vocabulary
- History, Retry, backup and export
- Optional encrypted sync (free account)
Pro
Or $67.99 a year, about $5.67 a month.
- Everything in Free
- Custom writing modes and saved instructions
- Formatting rules for each app
- Advanced cleanup on Apple Intelligence devices
- Personal analytics on iPhone
- Our most accurate speech model
Team
Minimum 3 seats, billed monthly.
- Everything in Pro
- Shared vocabulary and phrases
- Team default model and formatting
- Seats, roles and admin controls
- Team usage insights that never show anyone’s words
- Central billing
Prices in USD. In the App Store, Pro is $9.99 a month or $79.99 a year. Downgrading never deletes your recordings, notes or history.
Questions people ask first
Does Cofactor work offline?
Yes. Dictation and formatting run on your iPhone or Mac. On iPhone, the speech language downloads once the first time you use it. After that, no connection needed.
Is it really free?
Yes. Unlimited on-device dictation, the full keyboard, cleanup, writing tones, your vocabulary, saved phrases, history and backup are free. Pro adds custom writing modes, app-specific formatting and advanced cleanup.
Where does my audio go?
It stays on your device. Nothing is sent to a server to be transcribed or formatted, on any plan or model. You only need an account for optional encrypted sync or Team features.
Which devices does it support?
iPhone with iOS 26 or later, and Mac. Android and Windows versions are planned.
What if a dictation fails?
Cofactor saves your audio before it transcribes it, so nothing is lost. Retry it from History.
Your next big idea is on its way. Be ready for it.
Dictation, cleanup and the full keyboard are free. Pro starts with a 30-day free trial.
Launching soon on the App Store.