Calling
used to be
SCARY
Cello gives you
a safe space to
practice phone calls
So when the real ones come, you are ready.
Get the appIf your phone
makes you sweat
keep slipping
to tomorrow
before you press
the call button
impossible to leave
than say a single
thing out loud
Calling
feels
scary
Nearly half of young people actively avoid phone calls due to lack of confidence
1%Pick your
scenario
Choose from 20+ real-life situations. Doctors, landlords, internship coordinators, or even ordering pizza.
Start easy and go harder as you grow.
Speak out
loud
Cello uses AI to detect your voice. You actually have to talk. No more silent rehearsals.
The more you speak, the more confident you become.
Get
feedback
Receive instant insights on your tone, pacing and confidence.
Watch your confidence grow together with scores.
View your
stats
Track your total calls, average score, and streak as they grow with every conversation.
Earn medals as you hit milestones, and watch your confidence climb week after week.
Download
Cello
with one practice call.
Yearly
subscription
Professional
work
module
just 15-20
min a day
and each call feels easier, with your confidence growing one practice session at a time.
The team
behind Cello
Mansurkhon Mukhamadiev
Mansur, originally from Tajikistan, comes from a business background and is the driving force behind Cello's idea, shaping its mission and long-term vision.
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Cedric Van Uytsel
Cedric, from Belgium, has an IT background and leads the development of Cello's product, turning ideas into practical solutions.
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Armand David
Armand, from Hungary, brings a strong business background and a strategic approach to building and scaling Cello.
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Brendan Perkins
Brendan, from Belgium, specializes in marketing and is responsible for shaping Cello's brand, voice, and outreach.
Click to return