Float — Indoor Rowing

What a session gives you

Recorded live · reviewed after

PM5 · Erg 4

4×500m

r 2:00 · sent to monitor

Workouts on your PM5

Build intervals in Float and they're programmed onto the monitor. No more setting it up by hand before every piece.

Drive force

A curve for every drive

See the shape of each stroke live, drawn over the one before it, with length, drive time, power and drag factor.

Rep 3 of 4

+1.8s

ahead of last time · 1:43.7 /500m

Race your ghost

Row a session again and your last attempt rows with you. Float shows the gap on every rep.

Heart rate · rest

176 bpm

Heart rate, work and rest

Live heart rate from any Bluetooth strap, and how quickly it comes down in every rest.

Saved on your phone as you rowReconnects if Bluetooth dropsWorks offlineExport FIT · TCX · CSV

Structured training

Build the session. Float runs it.

Make simple intervals, variable pieces or custom blocks. Float takes you through every rep and rest, or sends the workout to your PM5, and records every stroke as you row.

Run the session from Float, or have it programmed onto the PM5
Split, rate, watts, distance and heart rate on one clear live screen
Portrait or landscape, with an erg-mount layout and a Bold split view

Row against your last time

Record the session, then row it again.

Every session you row is saved. Row the same piece again and your last attempt rows alongside you as a ghost. Float shows the gap live, rep by rep, so you know straight away whether you're ahead or behind.

Your previous attempt at the same session, rep for rep
The live gap in seconds: green when you're ahead, red when you're behind
You always see which attempt you're racing, such as rep 3 from 13 Oct

Rep 3 of 4 · 500m+1.8s

You · today

1:43.7

Ghost · 13 Oct

1:45.1

Rep 1+0.4s

Rep 2−0.3s

Rep 3 · live+1.8s

Rep 4—

Example session

Rest is yellow

Work is dark. Rest is bright.

When Float runs the session, the rest is on your phone, and you can tell you're on one from across the room. Float tracks how fast your heart rate comes down, and the screen darkens as the next rep gets close.

Two ways to run a session

Let Float run it, or program the PM5.

Most rowing apps can only send a workout to the monitor. Float can do that too, but it can also run the whole session from your phone while the PM5 simply ticks over in Just Row. You choose each time you start.

Float runs it

Default

Phone runs the reps and rests · PM5 in Just Row

Heart rate keeps recording through the rests, so you see how fast you recover
Race your ghost: a live comparison with your last attempt, rep by rep
Variable sessions run exactly as you built them
Pause the clock during a rest for a comfort break
Works on any erg, RP3 included

Best for racing yourself and variable sessions.

Program the PM5

Beta

Workout sent to the monitor · PM5 runs the intervals

The PM5 runs the intervals on its own screen
Keeps going even if your phone or Bluetooth drops
Splits go into the PM5 and your Concept2 Logbook as a proper interval workout
The score on the monitor matches the session you set

Best for tests and set pieces where the official PM5 result matters.

Float records the same stroke data either way.

Every stroke, measured

See how you got there.

A full review after every piece, with the detail a final time hides.

Live drive-force curve, with the previous stroke behind it
Stroke length, drive time, force, power and drag factor for every stroke
Steady view: how evenly you rowed, not just how fast
Records and trends, plus FIT, TCX or CSV export

Coming soon

What did that session cost you?

Float will read the stroke and heart-rate data from every session and show what it cost: one reading for your muscles, a separate one for your heart, each compared with your own normal.

Muscular cost. How much your stroke force fades through a piece, compared with your previous sessions.
Cardiovascular cost. How much harder your heart works to hold the same output as the session goes on.
Judged against you. Your own trend over weeks, not a table of averages or one bad day.
More from every 2k. Whether the result matched what you had in you going in.

Developed from Ludum's sports science research. No extra kit: it works from the erg and strap you already use.

Session cost · previewvs your normal

MuscularAbove your normal

Force fade through the piece

CardiovascularWithin your normal

Heart rate drift at the same output

Illustration · feature in development

Coming soon

Have a coach?

Train alone. See your team mates.

Soon you'll be able to join your squad from your coach's invite, see what your team mates are rowing, and have your sessions, tests and check-ins land with your coach automatically.

01 · JOIN

One invite link

Tap your coach's invite, sign in, and you're in the squad.

02 · TEST

Team tests and check-ins

Do team tests and daily readiness check-ins right in the app.

03 · SYNC

Your coach sees it

Every session syncs to Ludum, so your coach sees your results in one place.

Coach? See Float on ludum.com →

Every stroke.
Measured.

What a session gives you

Workouts on your PM5

A curve for every drive

Race your ghost

Heart rate, work and rest

Build the session. Float runs it.

Record the session, then row it again.

Work is dark. Rest is bright.

Let Float run it, or program the PM5.

Float runs it

Program the PM5

See how you got there.

What did that session cost you?

Train alone. See your team mates.

One invite link

Team tests and check-ins

Your coach sees it

Your next erg session,
measured.

What a session gives you

Workouts on your PM5

A curve for every drive

Race your ghost

Heart rate, work and rest

Build the session. Float runs it.

Record the session, then row it again.

Work is dark. Rest is bright.

Let Float run it, or program the PM5.

Float runs it

Program the PM5

See how you got there.

What did that session cost you?

Train alone. See your team mates.

One invite link

Team tests and check-ins

Your coach sees it

Your next erg session,measured.

Your next erg session,
measured.