App

Every set takes shape. The bodybuilding logbook.

The bodybuilding logbook. Load, reps and RIR, set by set.

Try the app
FORM4 Vision

Already have a plan? Photograph it.

Vision remembers your corrections on this phone and, after two confirmations, applies them itself.

FORM4 Vision: the viewfinder with the sheet, Take photo or Choose from gallery. App screen in Italian.

Log it right.Compare what counts.See what changed.

Tracking. Simplicity. Precision. Everything in FORM4 follows from here.

Inside the set.

Your previous set in sight. The next one, under your thumb.

  1. Your next set, ready.

    Highlighted, with the previous one below it: 7 × 22 kg, RIR 1.

  2. Log it. The comparison is already there.

    Same load, one more rep. The next set moves into place.

  3. One tap and the rest starts.

    Add 10 seconds or skip. Try it here.

RestingReady02:55
Then · Seated Dumbbell CurlSet 2 · 6 × 22

Seated Dumbbell Curl

Dumbbell · Biceps

Target 5–8 reps

Seated Dumbbell Curl, today's sets with the previous ones. Example workout, TORSO LIMBS.
StateSetrepskgRIR
15–88-22 kg-1
prev7221
25–87-22 kg-1
prev6221
35–86-22 kg-1
prev5221

+1repagainst the previous session
7 × 22 kg → 8 × 22 kg

A reconstruction of the workout screen in the app’s colors. Demo data, program · TORSO LIMBS

One side at a time.

Separate load, reps and RIR. Even the rest between right and left has its own time.

Single-Arm Triceps Pushdown Set 1 · Demo data

Right

Between sidesGo01:08
Between sidesNow the left side

Right first. Then left.
Rest in between.

Left

That one counts, too.

The half rep stays in the record of the side that did it.

Right with right. Left with left.

Same exercise. Same set. Each side compared with its own history, never with the other.

Plate-Loaded High Row

Set 1 · First and latest session

Left

kg

+5 kg 7 → 6 +½ reps

5456586055155256357.5458.8558.866076085456586055155256357.5458.8558.86607608
Load per week, kg. Data from the app.

Right

kg

+5 kg 7 → 7 reps

5456586055155256357.5458.8558.866076085456586055155256357.5458.8558.86607608
Load per week, kg. Data from the app.

First and latest session documented in the app for both sides. Two separate comparisons, even when the values match.

From planned to performed.

Planned and performed sets, muscle by muscle. Where the shapes separate, your work differs from your plan.

Read one muscle at a time.

Biceps

24programmed
22performed

−2 sets against the plan

8162432Chest27 / 26Side delts14 / 12Rear delts14 / 8Back31 / 32Biceps24 / 22Triceps28 / 25Core12 / 2
Training sets by muscle group
GroupProgrammedPerformed
Chest2726
Side delts1412
Rear delts148
Back3132
Biceps2422
Triceps2825
Core122

Example from the app: planned sets for completed sessions and performed sets.

The whole app. Screen by screen.

Home, Program, Workout, Progress. Actual screens, as they are.

  • Home: today’s workout, the week and the last workout done.
  • Workout in progress: the next set highlighted, the previous one below.
  • Plate-loaded High Row: load over time, left and right apart.
  • Rest over: Chest Press, set 2 ready.
  • Rest: 04:50, then Chest Press set 2. +10 s or Skip.
  • Progress: planned and performed sets, group by group.
  • Program: week 1 of 20, workouts and days of the week.
  • Machine note: seat, back pad, chest pad. Just today or on that machine.
  • Unilateral set: R and L apart, rest between sides.
  • LIMBS A block: each exercise’s trend.
  • Workout: one exercise done, the next with its machine.
  • Program: muscle distribution, new program, free workout.
  • Which machine? Each machine keeps its own records and progress.
  • Reps over time and first against latest session, per side.
  • Workout in progress: timer, sets done, exercise list.
  • Exercise list: tap to expand, End workout at the bottom.

Think in weeks. Train today.

Training days and rest days. Your program takes the rhythm of your week.

TORSO LIMBS

Week 5 / 9

  1. MonDoneTORSO A14 sets
  2. TueTodayLIMBS A9 sets
  3. WedRestRest
  4. ThuPlannedTORSO B14 sets
  5. FriRestRest
  6. SatPlannedLIMBS B8 sets
  7. SunRestRest

The program is yours.
Take it with you.

Export your program
Save it as a file.
Import a workout
From another program, in the Program Builder.

667

exercises in the catalog.

The names you hear at the gym, organized into 222 movement families.

Even the
half rep.

The last rep you attempt but don’t finish counts as half.

Your program
changes. History stays.

Every change creates a new version: past workouts stay exactly as you performed them.

A missing value stays missing.

If you don’t enter RIR, FORM4 won’t invent it. A missing value is never replaced with zero.

Three principles.

Every screen in the app answers to one of these.

Tracking
Load, reps and RIR for every set, with the previous set in view. The logbook is the product; everything else reads from it.
Simplicity
The fewest taps between you and the next set. The previous set is already in view; rest starts with one tap.
Precision
Half reps, sides, rest between sides, target ranges: the details that decide whether a set counts are recorded as data, not side notes.
How FORM4 works

Your next set starts here.

FORM4. The bodybuilding logbook.

Available on all platforms

App StoreGoogle Play

Free during early launch.

Questions about the app

Questions.

What is FORM4?

A bodybuilding logbook. Plan your training, record load, reps and RIR, and compare sessions weeks apart to see how your execution evolves and track progress over time.

What does FORM4 Vision do?

It reads a photo of your training sheet and prepares an editable draft. Review exercises and missing details before confirming the program.

Can I take my program with me?

Export your program as a file. The Program Builder also lets you import a workout from another program.

Where can I download it?

The app is available now on the App Store and Google Play, and it is free during early launch.