For people who already train

Your workout.Nothing else.

Most workout apps compete for your attention. Forty Five keeps logging fast, quiet, and focused so you can get back to the next set.

Join TestFlight See the workout flow
iPhone + Apple WatchWorks without signalNo feed. No streaks.
The real Forty Five active workout screen showing Bench Press, weight and rep fields, exercise navigation, and rest controls

Ask 45 Coach without leaving the workout.

REST

Finish the set. Rest starts. Keep moving.

No feedNo streak pressureNo cloud dependencyNo phone required mid-set
Built around the workout

Plan it. Train it.
Remember it.

Plate math, unit conversions, and clock-watching are small until you are out of breath. Forty Five handles them without turning your workout into a dashboard.

01 · Workouts

Start from
your plan.

Build the sessions you actually repeat, keep exercises in your order, and get to the first working set in seconds.

Workouts

Push day6 exercises / Last worked Jul 24
Pull day7 exercises / Last worked Jul 22
Legs5 exercises / Last worked Jul 20
02 · Active workout

Only what matters
for the next set.

Switch between weight per side and total, change kg and lb, and let rest start when the set ends without leaving the lift in front of you. Previous sets and notes stay close when you need them.

Actual Forty Five active workout interface
Built into every set

No plate math.
No clock watching.

Enter what is on each side and Forty Five includes the bar. Switch units when the gym changes, then finish the set and let the rest timer handle what comes next.

BENCH PRESSBarbell
20 kg × 2 + 20 kg bar = 60 kg total
UNITS
kg ↔ lb

Change gyms or countries without rebuilding your workout.

REST
01:42

Complete the set. The timer takes it from there.

03 · 45 Coach

Ask something that
knows the workout.

Tap the sparkle while you are training. Ask about the active workout, the current lift, what to focus on next, or how today compares with your synced exercise history.

  • “Should I increase the weight next session?”
  • “Why did my last set drop off?”
  • “What should I focus on today?”
The Forty Five 45 Coach answering questions about the final bench press set during an active workout
04 · History + recaps

Last time should
help this time.

See what you lifted before, spot meaningful progress, and finish with a clear recommendation for the next session.

BENCH PRESS · TODAY
82.5 kg × 8+2.5 kg

Last time: 80 kg × 8

NEXT SESSIONKeep 82.5 kg. Aim for 9 clean reps.
05 · Local-first + sync

Keep training when
the signal disappears.

Your workouts live on your iPhone first. Sign in when you want AI, backup, and sync—without making the cloud a requirement to train.

Your iPhoneWorks without signal
Signed-in backupSync when you want it
06 · Apple Watch

Leave your phone
in your pocket.

Start once in Forty Five. Log sets, manage rest, monitor heart rate and active energy, control music, and save the complete session to Apple Health—without switching apps mid-workout.

Log setsAutomatic restLive heart rate + energySaves to Apple HealthMusic controls
Apple Watch hardware displaying the Forty Five workout app
Built for people who already train

The details serious
lifters notice.

01

Fast workout entry

Open the session you repeat and get to the first working set quickly.

02

Each ↔ Total, bar included

Think in weight per side while Forty Five records the complete load.

03

kg ↔ lb wherever you train

Change gyms, countries, or programs without doing conversions mid-set.

04

Rest that follows the set

Per-exercise timers, quick adjustments, haptics, and notifications.

05

Notes where you need them

Keep setup cues and reminders attached to the right lift.

06

History with a purpose

Use previous sets to make a better decision in the current session.

07

Works without signal

Your workout stays fast and usable without an account or network.

08

The whole workout on Watch

Log sets, manage rest, see health metrics, and control music from your wrist.

Forty Five beta · iPhone + Apple Watch

Train with
less noise.

Join the TestFlight beta and help shape the first public release of a faster, quieter workout tracker for iPhone and Apple Watch.

Join TestFlight Free beta access · Opens in TestFlight
Forty Five

Your workout. Nothing else.

© 2026 Forty Five