Walk out of every pitch knowing what held up.

MasterTells checks every claim and figure against real sources, scores how you came across, and keeps the list of what to fix before the next run-through.

Coming soon For iPhone and Mac

A founder pitching at a whiteboard to two investors.

Claim · Example“More choice at the moment of purchase leads to fewer purchases.”The sources say otherwise

Rehearse with proof.

A friend’s feedback is kind. MasterTells is exact.

Without MasterTells

A claim nobody can back up reaches the board.
Feedback on your delivery stops at “It was good.”
What to change after each rehearsal gets lost.

With MasterTells

Every claim checked against real sources, with the passage it rests on.
Six scores for every run-through: clarity, concision, structure and more.
A recap of what to keep, what to cut and what is still open.

What MasterTells finds in a rehearsal.

Examples from the conversations that come with the app.

Every claim, checked.

With what the sources actually say.

Claim · Example“More choice at the moment of purchase leads to fewer purchases.”The sources say otherwise

A meta-analysis of 50 studies found an average effect near zero.

Six scores, every run-through.

Board rehearsal with Megan.

Clarity: 8.0
Concision: 5.0
Structure: 9.0
Firmness: 7.0
Listening: 8.0
Contribution: 9.0

What to change, in writing.

The recap of the same rehearsal.

Decided: Keep the Q3 part, but cap it at thirty seconds; Drop the announcements before statements such as “I want to be direct”
Left open: How many accounts the price floor protects

How it works.

Record or import.

Put your iPhone on the table for the rehearsal or the meeting, or import the transcript of a video call.
Read the recap.

What was decided, what was left open, and who committed to what, in seconds.
Master your tells.

Ask how to fix a habit, and get three things to try, each from your own conversations.

Questions founders ask.

Can it check the figures in my own deck?

Yes. Add them as the conversation’s background, and claims are checked against what you wrote as well as against web sources.

Which plans check claims?

Pro and Master check claims and figures against real sources, and show the passage each check rests on.

Does it work for in-person meetings?

Yes. Put your iPhone on the table and tap Record.

Who can see my conversations?

Only you and the people you share them with. Not even MasterTells can read what you store.

What does it cost?

It’s free to start, with recaps for 5 hours of conversation a month. Personal is $9.99 a month, Pro $19.99 and Master $49.99, and yearly plans give 2 months free.

Master the tells of your next pitch.

Free to start, on iPhone and Mac.

Coming soon