Lift. Eat.
Progress.

Flow plans the week, counts the food and remembers every set.

iPhone · early 2027 · no spam

Weeks rarely go to plan. A short night, a sore shoulder, a dinner out. ARKN plans around the week you actually have, and tells you in one word how you are.

Every season is an arc.

Home · Food · Train

Your week, at a glance.

Home

The week as a number. One card that says how you are.

Food

Calories and protein left, nothing more to think about.

A workout from Flow

Ask for Friday's legs at home. Flow builds it and puts it on the day.

Train

One card per lift.

Bench Press

1 of 4

3 × 6 · last time 60 kg × 6

162.5kg6

262.5kg6

362.5kg6

Each lift is a card, with last time's numbers on it.

Tick a set and the rest starts.

The last set folds the card. The next lift is up.

Body

Words, not scores.

Readyfor Pull.

Back and arms have had three days. You slept your usual and your heart is at rest.

Nothing is off.last 14 days

The band is the middle of your last 14 days. The dot is this morning. Tap one to see what it's measured against.

Readiness for today's session, measured against your own last 14 days.

One thing off makes it an easy day, and you can see which.

No age, no number out of 100. A word you can check.

Recover

Heat and cold, timed.

Sauna

15 min · your usual
last Tue · 85° · 15 min

Start sauna

Sauna · 85° · Round 1 of 3

Breathe slow through the nose. Stay low if it's too much.

Then · 2 min cold, or rest

End

Set the heat on one dial. The glow is the temperature.

Or the cold. The same dial, colder at the bottom.

Breathe through the rounds. It counts toward how ready you are, and lands in Apple Health.

The coach

Flow.

You

Can you make Friday's legs a home workout? Easy on my shoulder.

Flow

Legs at home, 32 minutes. Bands and bodyweight. Nothing loads your left shoulder.

Read: your message · your page · Legs, Mon · your home gym

Run

Runs end on a map.

A finished run in ARKN: 3.2 km around Hyde Park on a map, 12:48 at 4:03 per kilometre, with the splits for each kilometre.

Run from the + button.

The screen can sleep. The run keeps counting.

It ends on a real map, and lands in Apple Health.

Coming with Arcs

Together, one season.

Lock into a season with up to three friends. You share that you trained — never what you lifted, ate or weighed.

✕ Build your own

Pick an arc.

Winter Arc

12 weeks · build
Mon 4 Jan → Sun 28 Mar

starts in 11 days12 wk

Spring Arc

8 weeks · lean
Mon 5 Apr → Sun 30 May

in 3 months8 wk

Summer Arc

12 weeks · hold
Mon 7 Jun → Sun 29 Aug

in 5 months12 wk

Autumn Arc

12 weeks · build
Mon 4 Oct → Sun 26 Dec

in 9 months12 wk

1 of 4

Flow Twelve weeks through the dark months, from the first Monday of January.

StartsMonday 4 January ▾

NameWinter Arc

‹

Who's in.

Winter Arc · Mon 4 Jan → Sun 28 Mar

AAlex youLocked in

NNoorInvited · Sunday
Resend

+Invite someoneSend a link

share.arkn.app/a/wntr-7k2qCopy

Opens the arc for anyone with the link · valid until the end of week 1

Flow Two is the arc. You don't need Noor to start — the shared part switches on when Noor does.

Lock in · Mon 4 Jan

AAlex invited youto twelve weeks, together

Winter
Arc

Mon 4 Jan → Sun 28 Mar · 12 weeks

Different goals, one arc. Flow builds your plan around you and shares only what you choose.

Join Alex

Maybe later

Your weight, food and Health data stay private unless you share them.

AAshare.arkn.app/a/wntr-7k2q↻

Join Alex.

Winter Arc · Mon 4 Jan → Sun 28 Mar · 12 weeks

Alex will see

Sessionstrained today, or not

Foodlogged today, or not

Recoverysauna, cold, logged or not

Bodyweightthe trend, not the number

Never shared: what you ate, your sets and weights, anything from Health. Change any of this later from the arc.

Lock in

‹

Winter Arc · Mon 4 Jan → Sun 28 Mar

Week 3.

4 Janday 1728 Mar

AAlexbuild · trained today4 of 6

NNoorlean · rest day6 of 6

SSamstrength · trained today4 of 6

Together, 2 of 2 weeks kept.

A week is kept when everyone meets their own commitments.

This week

One email, when ARKN opens.