Log the work.
Watch it climb.
Turns every set you log into a strength curve, then puts it on a leaderboard against your friends.
Free · Your data stays yours
- curated plans
- 50curated plans
- illustrated exercises
- 65+illustrated exercises
- cited tips
- 60cited tips
Why VERTEX
Three things a workout log usually can't do.
Logging sets is table stakes. What you do with them afterwards is the whole point.
Most loggers stop at storage
A strength curve, not a spreadsheet
Every set feeds an estimated 1RM per lift, trended from four weeks to all-time. The muscle-group average counts each exercise equally against its own history, so adding a lift can't fake a drop and dropping one can't fake a gain.
Trends per lift · 4W → all-time
Feeds show you what happened
Something to actually beat
King of the Gym ranks estimated 1RM on one lift or the big-three total, across four scopes: your friends, your gym, the whole chain, or lifters within five kilometres.
4 leaderboard scopes
Plans usually die in a group chat
Routines that travel
Save a finished session as a routine in one tap, publish it to your profile, and friends save it in one more, sets pre-filled. Save counts show which routines earn their reputation.
50 curated plans · 65+ exercises
Estimated 1RM
Progress stops being a feeling.
Every set you log feeds an estimated one-rep max for that lift. Eight months of honest logging is the difference between thinking you got stronger and knowing by how much.
The same view works per muscle group, with every exercise measured against its own history rather than a shared baseline, so a beginner and a lifter ten years in both get a line that means something.
Bench press · est. 1RM
102.5 kg
+20 kg
Estimated 1RM, bench
8 months
From first logged set
4W → all-time
Every window, per lift
Inside the app
Don't scroll. Tap in.
Pick a feature to open it up. Newest: home-screen widgets and a live workout card that runs on your Lock Screen while you train.
Your week, without opening the app.
- Home-screen widgets in two sizes: sessions this week against your goal, volume, week streak, and the seven-day strip.
- Lock Screen accessories too, circular and rectangular, on any iPhone running iOS 16.4 or later.
- Start a workout and a live card runs on the Lock Screen and in the Dynamic Island until you finish it.
- Mid-set it counts up. Mid-rest the same card becomes the countdown, names the lift, and tells you which set you're on.
Plus achievements, workout tiers from Hatchling to Apex, a gym finder with real clubs, and the crown.
App preview
A look inside.
The five screens you'll train with, true to the app's design. Progress sits front and center.
Discover
NewA second feed, for the people you haven't met.
The Feed tab is now two panes, one swipe apart. Following is your people, newest first. Discover is everyone else: public athletes you haven't followed yet, and the posts worth finding them for.
It used to switch itself off: the old Discover only appeared while your feed held fewer than three posts, which meant it vanished the moment it started working. Now it's always one swipe away.
- People firstDiscover opens on public accounts you don't follow yet, not on a wall of posts.
- Ranked, not chronologicalA comment counts for more than a flame, and both fade as a post ages. A day old post keeps about 44% of its score, a week old one about 9%.
- Reshuffled every refreshPosts of comparable score swap places each time you pull down, so a quiet day never returns the same feed twice.
King of the Gym
Compete with your friends.
Every shared workout feeds the leaderboards. Go head-to-head on one lift, or on total strength across the big three.
Top the board and you wear the crown, until someone takes it. Opt-in, and only lifts from workouts you shared ever count.
Everyone who opted in at Iron Temple · est. 1RM total, big three
Eight tiers · one way up
“Every Apex was once a Hatchling.”
Earned one workout at a time, from your first session to your five-hundredth.
How it works
From “ready to train?” to a new PR.
Start a workout
One tap on the round VERTEX button and your session is live.
Add exercises
Search 65+ exercises with illustrated form demos, start one of 50 curated plans, or create your own.
Log sets and reps
Weight × reps per set, confirmed per exercise so nothing slips through.
Save & share
Finish, save it as a routine your friends can grab, and share it to your feed if it deserves an audience.
Watch your progress
Estimated-1RM trends, PR tiles, and weekly volume do the storytelling.
Your next session is the first data point.
Log one workout and the trend starts. Log ten and you will stop guessing whether it is working.
Free · Your data stays yours · English, French, Spanish, Dutch
Articles
Know what the numbers mean.
Short, cited articles on the things a tracker shows you but never explains: how progressive overload actually works, what an estimated 1RM is really measuring, and what to change when the bar stops moving.
The weighted vest is not a bone drug
It makes walking harder, which is worth something. The trial built to test it against bone loss found nothing, and the reason is how bone reads load.
The seed oil swap
Beef tallow sales are up 275% in three years. The trials that fed people more linoleic acid and measured inflammation directly found nothing to fix.
What your estimated 1RM is actually telling you
Your e1RM is not a prediction of what you'd lift on a max attempt. Here is what the number really measures, and how to read it properly.
Coming soon
The bar keeps moving.
Scan the machine.
Get your history.
Walk up to a machine in select gyms, scan it, and your history for that exercise loads: last session, your PR, suggested weights. Ready before you sit down.
Log from your wrist
ExploringSets, reps and the rest timer on your watch. Leave the phone in the bag.
Trending routines
ExploringA public library of the most-saved routines from athletes everywhere, proof included.
Adaptive plans
ExploringSuggested workouts that progress week over week as your PRs climb.
Want something first? Tell us what to build.
Privacy & legal
Transparent by default.
Everything is written in plain language and lives on this site. No legalese maze, and honest about what happens to your data.
Your workouts live on your device and sync to your account. Make the account private whenever you like, and delete the lot completely whenever you say so.