Stop guessing what will land. CoTune helps people shape the words with you.
Start with a rough draft. Invite anyone with an opinion. They just tap what resonates, and your text keeps evolving into the group's new favorite.
Here's what that looks like.
We used CoTune to write our landing page, but you can use it for any short-form text that matters.
Watch the group's favorite evolve.
Every version shared to the leaderboard is ranked by how likely it is to be the group's favorite. New ones enter, rise and fall as people weigh in, and the weakest drop out.
1 of 1 versions contending for group favorite
1 voter1 votelast activity just now
CoTune is the collaborative text evolution engine of the future.
CoTune makes it easy to explore alternatives.
Tap any word, phrase, or description of the text to try alternatives. Or describe what feels off and your options will re-calibrate.
CoTune is how groups find the right words. Start with a rough draft. Invite anyone with an opinion. They just tap what resonates, and the text evolves into something the group actually loves.
The group decides together.
Weigh in one choice at a time. As people share their preferences, each version's odds climb and fall — and a new favorite can take the lead.
CoTune is how groups find the right words. Start with a rough draft. Invite anyone with an opinion. They just tap what resonates, and the text evolves into something the group actually loves.
CoTune is how groups go from a rough draft to language everyone can get behind, just by tapping what resonates.
Your group joins for free.
You only pay when AI suggests new edits.
No subscriptions. Just credits.
One credit per batch of new ideas. Quick edits and tweaks are free. Participants always free — invite as many as you want.
Start a projectFrequently Asked Questions
That’s the whole point. When someone pushes back, AI uses that signal to suggest a version that threads the needle. Disagreement is the most valuable input the system gets.
Anything short-form that a group needs to agree on. Headlines, taglines, product descriptions, mission statements, bios, invitations, announcements, error messages, toasts, trip descriptions — if it’s under 500 characters and more than one person has an opinion, CoTune helps.
No. They tap the link, type their name, and start. No email, no password, no app to install.
Most groups converge in 10–20 minutes of total participation. It doesn’t have to be synchronous — people can contribute whenever they have a minute.
Yes. As the host, you see who’s participating, how the text is evolving, and where the disagreements are.