Our Mobile App Made $85K in 8 months
Starter Story
Nov 20, 2025
Jack and Nick are two brothers who turned their obsession with breathwork into a niche mobile app. But here's what they did different: they validated their idea with content before writing a single line of code.
Build an app with Rocket → https://www.rocket.new/?utm_source=youtube&utm_medium=starterstory&utm_campaign=3rdintegration
Starter Story Build→ https://build.starterstory.com/build/ai-build-accelerator?utm_source=youtube&utm_campaign=sweeneybrothers
Check out Coherence: https://www.coherencebreath.com/
🔔 Follow the Second Channel: @StarterStoryBuild
🏁 We're hiring: starterstory.com/jobs
Chapters:
0:00 - Intro
1:26 - Numbers behind the app
1:50 - Brothers backgrounds
3:33 - Create content first
5:45 - Build fast with Rocket
6:46 - Content before Product Playbook
8:30 - Piece of content example
9:19 - Coherence demo
10:24 - Tech stack
10:55 - Costs & margins
11:40 - Advice to founders
12:14 - Build and launch fast
This video is an educational case study of these founder’s experience. It is not financial advice and does not guarantee any income or results. Every business is different and your results may vary.
Chapters
Stack
Transcript
Chapters
Stack
No tools listed for this business.
My
name
is
Jack
Sweeney
and
I'm
Nick
Sweeney
and
we're
the
co
founders
of
Coherence
We
have
over
15
000
downloads
and
around
85
000
in
revenue
Meet
Jack
and
Nick
Sweeney
two
brothers
who
built
a
mobile
app
this
year
that's
already
made
85
000
But
here's
the
thing
Instead
of
building
the
app
first
and
then
trying
to
market
it
they
did
the
exact
opposite
Content
before
product
I
didn't
actually
write
a
single
line
of
code
in
this
entire
code
base
And
this
is
why
they
were
successful
So
I
brought
them
onto
the
channel
to
break
down
this
entire
playbook
And
in
this
video
we'll
dive
into
how
they
validated
their
idea
before
building
anything
their
five
step
framework
that
anyone
can
use
to
find
an
app
idea
worth
building
and
why
you
need
to
stop
coding
and
start
creating
or
else
you
might
never
make
it
All
right
this
one's
going
to
be
fun
Let's
get
into
it
I'm
Pat
Walls
and
this
is
Starter
Story
All
right
Jack
and
Nick
Sweeney
two
brothers
Welcome
to
the
channel
Tell
me
about
who
you
are
what
you
build
and
what's
your
guys
story
Awesome
Thanks
for
having
us
Pat
My
name's
Jack
Sweeney
And
I'm
Nick
Sweeney
and
we're
the
co
founders
of
Coherence
which
is
an
app
that
helps
you
regulate
your
nervous
system
We
launched
eight
months
ago
and
we
have
over
15
000
downloads
and
around
85
000
in
revenue
Beautiful
Before
we
get
into
the
app
and
what
you
build
I'd
love
to
hear
a
few
more
numbers
behind
it
Can
you
share
some
more
details
about
how
fast
this
thing
grew
Since
we
launched
we've
averaged
around
11
000
a
month
in
revenue
and
our
biggest
month
was
22
000
in
revenue
We've
just
surpassed
2
000
users
and
we
have
15
000
downloads
so
far
Okay
I
mean
that's
amazing
Before
we
get
into
the
app
tell
me
about
your
background
how
you
get
here
how
you
build
this
100
My
background
is
in
content
originally
In
university
I
had
a
YouTube
channel
and
grew
that
to
about
20
000
subscribers
But
during
COVID
I
ended
up
leaving
and
decided
to
pursue
entrepreneurship
So
I
started
building
some
simple
web
apps
with
the
no
code
tool
And
the
first
couple
apps
that
I
built
totally
flopped
but
just
kept
iterating
and
getting
better
Yeah
and
my
background
is
more
of
an
athletic
background
So
I
was
a
division
one
cross
country
skier
but
I
ended
up
getting
injured
And
the
doctor
said
that
my
career
was
over
I
wasn't
able
to
walk
for
10
months
He
said
I
wouldn't
be
able
to
walk
normally
again
And
so
out
of
desperation
I
started
doing
breath
work
in
earnest
And
I
was
able
to
walk
within
three
months
And
then
six
months
later
I
was
training
full
time
again
And
so
after
that
experience
of
resurrection
with
breath
I've
begun
coaching
and
helping
people
reverse
their
chronic
conditions
And
I
wanted
to
find
a
way
to
help
us
scale
the
medicine
of
breath
work
to
reach
more
people
and
change
more
people's
lives
lives
Okay
before
we
get
into
how
you
guys
built
this
thing
I
am
curious
building
an
app
with
your
brother
I'm
not
sure
if
we
had
anyone
on
the
channel
yet
that
are
siblings
building
an
app
What's
that
been
like
How
did
you
guys
decide
to
build
this
It's
been
an
absolute
blessing
having
Nick
Being
able
to
lean
on
each
other
When
I
was
hurt
for
example
Nick
was
still
going
When
Nick
got
sick
for
a
week
I
was
taking
care
of
things
I'm
just
super
grateful
to
be
able
to
have
a
brother
to
build
a
business
with
Okay
the
main
reason
I
wanted
to
bring
you
guys
on
this
channel
is
I
love
your
guys
approach
to
how
you
built
this
app
It's
very
different
than
what
I've
seen
a
lot
of
people
doing
Tell
me
what
you
did
differently
with
Coherence
Yeah
so
we
didn't
really
start
with
the
app
We
started
with
content
And
we
were
making
content
about
things
that
genuinely
excited
us
So
I
was
writing
threads
on
spiritual
esoteric
topics
Nick
was
doing
the
same
with
more
of
a
breathwork
focus
And
if
we
weren't
just
making
that
content
for
fun
we
never
would
have
discovered
what
was
going
viral
and
what
content
was
going
to
work
which
ideas
actually
resonated
with
people
So
we
started
with
the
content
first
We
made
content
that
we
cared
about
And
that's
how
we
learned
what
was
actually
resonating
Once
we
saw
what
went
viral
then
we
built
the
app
So
we
basically
reverse
engineered
the
content
into
the
app
And
I
would
just
make
posts
about
those
things
and
see
which
ones
would
get
traction
So
we
would
use
X
as
sort
of
this
idea
battleground
And
then
when
I
would
get
traction
on
a
piece
of
content
on
X
then
we
would
see
that
as
a
validated
piece
of
content
We
would
basically
have
an
Instagram
short
form
script
from
the
X
post
And
then
we
would
replicate
that
on
Instagram
and
TikTok
And
then
if
those
did
well
we
would
make
that
a
YouTube
video
So
we
were
kind
of
moving
upstream
to
longer
more
impactful
formats
of
content
And
that
was
how
we
approached
it
as
a
content
first
Let's
validate
the
content
and
what
people
and
the
market
actually
wants
And
then
let's
build
whatever
we
want
to
build
off
of
that
OK
I
think
that's
genius
to
focus
on
content
first
I'd
love
to
understand
a
little
bit
more
of
the
timeline
here
I'd
love
to
hear
a
little
bit
more
about
that
It
all
started
with
the
Vortex
breath
I
wrote
a
tweet
and
posted
it
next
morning
And
it
goes
yo
your
Vortex
breath
tweet
is
going
super
viral
And
so
that's
sort
of
where
we
got
the
idea
for
the
app
So
then
we
started
coding
I
didn't
actually
write
a
single
line
of
code
in
this
entire
code
base
But
we
use
cursor
We
finished
the
MVP
of
February
2025
and
launched
So
that
was
the
timeline
on
it
So
here's
what
I
love
about
Jack
and
Nick's
story
They
coded
the
first
version
of
their
app
in
just
a
few
weeks
They
didn't
waste
time
overthinking
or
over
planning
And
I
wanted
to
mention
this
because
I
do
see
this
happening
a
lot
People
getting
stuck
in
the
build
phase
for
months
Well
that's
where
Rocket
new
comes
in
Rocket
lets
you
go
from
typing
a
few
sentences
to
a
full
stack
app
Just
describe
your
vision
once
and
you'll
get
a
complete
functional
app
with
backend
integrations
and
production
ready
code
You
can
even
import
designs
from
Figma
add
integrations
like
Stripe
and
Superbase
and
download
an
actual
mobile
APK
to
test
on
your
phone
instantly
Over
400
000
users
in
180
plus
countries
are
building
with
Rocket
Rocket
because
it
turns
ideas
into
apps
in
minutes
and
not
months
So
if
you're
ready
to
build
your
app
idea
without
the
months
of
development
check
out
Rocket
new
at
the
first
link
in
the
description
Thank
you
to
Rocket
for
sponsoring
this
video
I
love
what
you're
building
All
right
let's
get
back
to
the
story
OK
well
this
video
isn't
about
the
coding
It's
about
the
content
It's
about
validating
before
you
build
So
that's
what
I
really
want
to
talk
about
What
would
be
the
sort
of
playbook
for
finding
an
idea
worth
building
through
content
So
step
one
pick
a
painful
niche
I
would
make
a
bunch
of
content
about
it
I
made
a
bunch
of
content
about
breathwork
And
ideally
I'd
find
a
co
founder
who's
technical
because
I'm
non
technical
But
I
would
go
out
into
the
market
and
I
would
just
start
making
content
about
a
painful
problem
that
people
experience
Get
traction
on
that
painful
problem
Step
two
batch
your
ideas
weekly
I
would
be
presenting
myself
as
a
solution
by
just
batching
my
content
ideas
weekly
Step
three
film
in
bulk
And
then
I
would
go
and
just
pump
out
30
to
60
videos
Looking
hook
film
done
Another
one
film
done
And
have
two
months
worth
of
content
done
Step
four
amplify
your
winners
from
those
pieces
of
content
I'd
see
which
ones
work
which
ones
don't
work
If
we
have
something
that
I
could
sell
then
let
me
take
the
content
pieces
that
won
and
amplify
them
Put
some
Spark
money
behind
Put
some
meta
ad
money
behind
them
and
see
if
that's
something
that's
validated
that
people
are
willing
to
pay
for
And
step
five
just
out
market
everyone
Make
as
many
reels
as
you
possibly
can
Hire
clippers
Do
whatever
you
can
with
whatever
means
you
have
For
us
we
are
fully
bootstrapped
So
I'm
just
like
I'm
the
face
I
will
post
like
a
madman
every
single
day
You
could
sell
whatever
you
want
to
sell
But
with
software
you
have
a
lot
of
leverage
So
find
a
technical
co
founder
founder
Write
the
software
Make
the
app
Ship
it
And
then
suddenly
you
have
a
business
Well
I
think
that
playbook
is
awesome
But
I
want
to
get
even
more
specific
Can
you
pull
up
an
actual
example
of
content
you
created
that
changed
the
game
for
your
app
and
turned
this
into
a
real
business
Yeah
so
this
piece
of
content
we
launched
in
July
And
this
was
the
one
that
really
changed
a
lot
for
us
It's
one
that
caught
fire
Got
around
8
million
views
across
all
platforms
I
thought
that
this
was
going
to
flop
flop
After
I
videoed
this
I
filmed
it
like
three
more
times
because
I
thought
it
was
bad
The
next
day
it
had
a
million
views
And
this
is
just
what
came
out
And
I
also
framed
it
like
I
said
earlier
in
this
polarizing
way
Do
you
want
to
know
something
that
they
don't
want
you
to
know
And
it's
kind
of
ambiguous
of
who
they
are
But
they
is
kind
of
if
we're
talking
about
health
it's
the
nefarious
forces
that
are
kind
of
keeping
you
sick
And
since
then
I
created
this
into
a
series
I
want
to
switch
topics
a
little
bit
And
I
want
to
show
the
audience
people
watching
here
what
you
guys
built
Would
you
be
able
to
just
show
me
how
the
app
works
100
So
this
is
the
app
Yeah
so
Coherence
is
a
breathwork
app
which
means
that
it's
designed
to
help
you
relax
focus
and
sleep
better
all
through
the
power
of
breathing
This
is
the
homepage
Here
we
have
a
little
streak
counter
a
little
gamification
Here
are
our
six
main
techniques
So
we
have
coherence
breathing
vortex
energy
which
obviously
gives
you
a
little
energy
boost
focus
stress
relief
and
sleep
So
if
I
click
into
coherence
for
example
we
have
this
very
simple
minimal
screen
where
you
can
set
a
timer
adjust
volume
et
cetera
But
you
press
start
And
this
is
going
to
play
a
sound
as
you
inhale
and
play
a
sound
as
you
exhale
It's
a
subscription
model
We
have
a
three
day
free
trial
on
our
yearly
plan
And
then
our
monthly
plan
is
just
build
monthly
For
our
yearly
it's
40
And
for
the
monthly
it's
10
a
month
OK
cool
I
mean
that
app
looks
awesome
Can
you
tell
me
a
little
bit
more
about
how
you
built
it
What
tools
did
you
use
And
what
does
it
run
on
We
use
React
Native
Expo
as
our
framework
We
use
Superbase
for
database
and
backend
Cloud
Code
and
Codex
as
our
coding
agents
Mixpanel
for
analytics
Revenue
Cat
And
then
for
our
marketing
site
we
use
Vercel
and
Next
js
For
all
the
design
stuff
we
use
Figma
And
then
for
3D
design
we
use
Rotato
And
then
we
use
ManyChat
for
Instagram
DM
The
other
question
that
I'm
curious
about
what
is
the
profit
margins
on
a
business
like
this
look
like
And
how
much
are
you
spending
to
run
this
business
So
we
spend
about
2
5K
on
video
editors
which
is
pretty
core
to
the
organic
content
model
Influencers
we're
just
kind
of
getting
into
now
So
we're
spending
about
1K
to
2K
on
that
for
partnerships
et
cetera
So
we
have
a
ghostwriter
helps
us
write
some
threads
800
a
month
We
have
a
virtual
assistant
which
really
helps
with
admin
and
stuff
It's
500
a
month
Our
coding
agents
we
spend
about
300
a
month
Revenue
Cat
comes
out
to
like
100
a
month
And
then
the
rest
of
our
tools
are
about
100
a
month
as
well
So
the
total
is
five
to
six
grand
a
month
We're
operating
at
about
50
margin
right
now
Okay
cool
Well
thank
you
for
sharing
that
The
last
question
that
I
have
for
everyone
that
comes
on
the
channel
maybe
there's
a
couple
couple
of
other
brothers
out
there
watching
this
that
want
to
build
something
What
would
be
your
advice
to
them
Yeah
I
would
say
keep
meditating
It's
a
very
high
leverage
activity
even
though
it
doesn't
look
like
it
on
the
surface
Breathe
more
and
try
not
to
sit
all
day
Move
around
throughout
the
day
Take
small
breaks
to
move
because
if
you
don't
your
body
will
eventually
give
out
if
you're
coding
for
12
hours
a
day
sitting
in
a
chair
Well
that's
great
advice
Thank
you
guys
for
coming
on
the
channel
I
think
what
you
did
is
awesome
Thanks
for
coming
on
Thanks
so
much
for
having
us
Yeah
thank
you
Thank
you
again
to
Jack
and
Nick
for
coming
onto
the
channel
and
sharing
everything
They
shared
their
costs
how
they
built
this
their
whole
content
playbook
I
think
that's
amazing
That's
what
Starter
Story
is
all
about
These
guys
are
proof
that
you
can
come
up
with
an
idea
You
can
build
it
with
AI
coding
tools
You
can
launch
it
and
see
what
happens
This
is
exactly
why
we
launched
Starter
Story
Build
So
you
can
take
your
idea
and
turn
it
into
a
real
app
using
only
AI
tools
So
if
you're
ready
to
actually
do
this
we'll
just
head
to
the
first
link
in
the
description
and
check
out
Starter
Story
Build
That's
it
for
this
episode
guys
Thank
you
again
for
watching
We'll
see
you
in
the
next
one
Peace
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