Know your climbing.
Log every climb, lift and meal in one app. Beta, your coach, reads all of it and tells you what to do next.
Free to log everything. iPhone and Android. Apple Watch tracks a session with no taps.
Thursday · your gymEverything you do to climb harder, in one place.
Most climbers track in pieces. A logbook here, a hangboard timer there, a calorie counter somewhere else. Crux keeps them together, so each part can learn from the others.
See what you sent.
How many goes it took, and how high you got.
Rest as long as the attempt deserves.
A rest clock sized to the go you just had.
Train on a plan that knows you slept badly.
Load, sleep and recovery shape the week.
Share the send.
Your crew sees it on any phone.
Start the session. Put your phone away.
On Apple Watch, Just climb detects each attempt from the height you gain. You review the climbs afterwards with a swipe. On the phone, one plus button logs anything.
- Your gym's colours. Log in the tape colours on the wall, or in V, Font and French grades.
- Attempts, falls and rests. The watch records them as they happen.
- Nothing guessed. Sent or not is always your call.
A coach that has read your whole logbook.
Beta reviews each session, plans your week and adapts when you miss a day. It works from your own numbers and tells you which ones. Where it has too little to go on, it says nothing.
Sessions, goals, your gym's kit, training load, sleep and heart rate.
A week that fits your availability, in your gym's colours.
What it told you last time, and whether it helped.
Off the wall counts too.
Strength, hybrid circuits, hangboard, food and recovery sit next to your climbing, in the same app and the same week.
Workouts
Large fields, a rest timer, and what is up next.
Nutrition
Scan a barcode or a meal. The target moves with your training.
Health
Four honest signals. No single score.
Your watch counts heartbeats. Crux counts metres climbed.
Heart rate runs high on the wall while oxygen use does not, so heart rate estimates read high for climbing. Crux works from time on the wall and height climbed, and labels each figure measured or assumed.
One two-hour bouldering session, three ways to count it
A 70 kg climber, 25 minutes on the wall, about 160 metres climbed. Active energy in kilocalories.
The two methods that count only the climbing agree within 4%. The first is about four times higher.
Bring the whole crew. Android included.
Share a session with your crew, tag who you climbed with and play the crew reel. Follow your gym for new sets. Nothing is public unless you choose it.
- Crews of up to 50, hidden by default.
- A weekly board you opt in to.
- Gym pages with kit, grading and news.
Log everything for free. Pay when you want a coach.
All logging, Apple Watch tracking, summaries, the reel, crews and gyms. Three reviews from Beta every 30 days.
Unlimited reviews, an adaptive plan, generated sessions, and nutrition and recovery guidance.
Your next session is worth keeping.
Join the beta on iPhone or Android. We measure taps, never your training.