1 sensor. 1 number. no more lying to yourself.
Your feel is lying to you. The bar never does.
You're not weak. You're just trusting a feeling that changes every day.
"That felt slow." "Last week was better, I'm sure." Sound familiar? Your ego says go heavier. Your nerves say hold back. Neither one is a number.
And that feeling picks your top-set weight. Guess wrong one way and you grind out a rep you had no business grinding. Guess wrong the other way and you leave a good day on the table.
Stop arguing with yourself. Measure the bar. A fast bar means you have reps left. A slow bar means you're close to your limit. No ego. No guessing.
Your ego is writing your program
Lots of lifters end up...
- ⚠️ Going too heavy on a day that feels great, then paying for it all week
- ⚠️ Going too light because of nerves when the strength was there
- ⚠️ Grinding reps they swore were an RPE 8, then wondering why they stalled
- ⚠️ Not sure if they're even getting stronger between meets
👉 As one STANCE owner put it: "we all know that 'feel' doesn't always tell the true story." Feel changes with sleep, stress, nerves and ego. Bar speed doesn't. It shows how you actually moved.
Your bar speed shows how much you have left. Read it, and pick the right weight.
Why rating your sets by feel made sense, and still let you down
You didn't fail. Your feel did. And it will keep doing it.
RPE is a great idea. The weak part is the rating, because it comes from how the set felt.
"The moment the weight feels heavy, my brain just assumes I'm not going to make the rep. Even though, if I get past my knees, I almost always finish the lift."
Mirri, STANCE creator
Your feel was never built to be a scale.
Heavy days feel heavier when you're tired. Good days feel easier than they are. So your rating drifts, and your weights drift with it:
The lifters who stop second-guessing are the ones who add a number to how the set felt.
Measure the bar. Make the call. That's exactly what STANCE is built to do.
Say no to guesswork and gym-lab prices
Just going by feel:
- Changes with sleep and stress, so the same set gets a different rating
- Ego and nerves push you too heavy or too light
- No record of whether the same weight is moving faster
Lab-style string trackers:
- More than twice the price of STANCE
- Cables and set-up on the floor of a busy gym
- Built for pro teams, not your everyday training
👉 You deserve better than guessing every top set or paying lab prices for a number.
A coach in your pocket that calls you out
👉 STANCE is a small sensor that straps to the bar. You lift like normal. Your phone shows how fast the bar moved, every rep.
Know before your top set if today is a heavy day or a hold-back day. No cables, no subscription.
Built for lifters, the simple way
SensorBar mountVelcro strap holds it on the bar in seconds
ReadinessEvery sessionToday's warm-up speed vs. last time
RPE chartPersonalLearns what each RPE looks like for you
ProgressWeek to weekSpeed at each weight, today vs. last week
Big threeSBDSquat, bench and deadlift
Accuracy<0.05 m/sAverage gap vs. a string tracker over 5,000+ repsWhy Mike Tuchscherer carries it in his gym bag
"I've been using velocity data in my own training for the last 16 years, and I've used all the different devices. Once I tested Stance, not only did I start carrying Stance in my gym bag, I looked for a way to get involved with the company."Mike Tuchscherer, founder of Reactive Training Systems
Full disclosure: Mike is now an investor in and advisor to STANCE.
World champions don't guess. Why are you?
Keenan Lee's top sets, in his own words
"I have two sets of two at an RPE 6 and I really don't want to overshoot them. An RPE 6 double could be anywhere from 260 to over 300 kilos."
"Based off the speed of my last warmup, I'm going with 260."
"My first set moved right around the speed an RPE 6 set should, so I'm going to retake the same weight for my next set."
"My second set moved even better. I'm thinking around a 5.5, and it looks like the tracker agrees with me."
How STANCE compares
| STANCE | Feel only | String trackers | |
|---|---|---|---|
| Objective number | ✓ | ✕ | ✓ |
| Same every day | ✓ | ✕ | ✓ |
| No cables | ✓ | ✓ | ✕ |
| Your own RPE chart | ✓ | ✕ | ? |
| Less than half the price | ✓ | – | ✕ |
| No subscription | ✓ | – | ? |
🚀 Bottom line: STANCE gives you a real number for every rep, without lab prices or cables on the floor.
Why bar speed works
In a study of powerlifters, bar speed closely tracked how hard they rated each squat, bench and deadlift.Helms et al., Journal of Strength and Conditioning Research, 2017
Lifters moved the bar about 8% faster when they could see their speed.Weakley et al., Sports Medicine, 2023
STANCE costs less than half the price of most string-based trackers.Price check, October 2026
Get your STANCE today
★★★★★Loved by 6,000+ lifters
STANCE Bar-Speed Tracker
- Tracks squat, bench and deadlift
- See if today is faster than last week
- Catch bad days before they cost you
- Works on iPhone and Android
- One-off payment. No subscription.
No subscription
What owners say
Trusted by champions"Overshooting rarely occurs now and having the tracker helps me pick the correct weight for my top sets."
Gabriel T."“That felt slow” and “last week was better I’m sure” … this has offered me the cold hard data I needed to allow me to push further with my training!"
Sadie H."It’s like having a coach in your pocket reminding you that you’re on the right track or calling you out if you’re slacking."
Corey J."No more guessing just data driven results. No more external factors taking you out of your zone."
Leandro M."The RPE I thought I was doing was off."
Herbert"Cannot say enough about how this has improved my lifting. Finally joined the 405lb Squat club!!"
Luke"Great way to know if I’m ready for the weights I plan to do and compare them to my previous lifts!"
Minhal H."I catch myself checking bar speed and trying to beat it each session, which has been fun."
Jackson S.money
back
Try it for 30 days or your money back
Use it in your own training. If it isn't for you, send it back within 30 days for a full refund. The sensor also has a 12-month guarantee.
Get my STANCE →Frequently asked questions
Do I need to know anything about bar speed?
No. The app walks you through it step by step.
Is there a subscription?
No subscription needed. One payment covers the tracker and the app.
Does it work with my phone?
Yes. It works on iPhone and Android, and you can switch between them at no cost.
Which lifts does it track?
Squat, bench and deadlift.
Will it pick my weights?
No. You make the call. STANCE gives you the number to make it with, and it works with whatever program or coach you already have.
How accurate is it?
STANCE tested it against a string-based tracker on over 5,000 reps. On average the readings were less than 0.05 m/s apart.
How fast is shipping?
Shipping is free worldwide. Orders leave within 2 days. International delivery takes 3 to 14 business days.