Set up
The app shows you where the cones and your phone go. For the acceleration test, two cones and 10 m of space are enough.
Gearstack FC
Football training with real numbers.
Test yourself with your iPhone. Your player card grows with you.
See the testsSoon on the App Store
Sample data, fictional AI-generated player
- performance tests
- 10
- skills on your card
- 5
- card tiers
- 3
Our mission
Make progressvisible.
Plenty of players get better week after week, and hardly anyone notices. Not the coach, not the scout, often not even the players themselves.
Gearstack FC measures every test with your iPhone and shows you in black and white where you stand and how far you have come. Soon you will only be compared with players born in your year.
And if you want, others can see it too: share your videos with friends, verified clubs and scouts, and your test results with your club. Only ever with your permission, and for under-18s, parents have a say.
For you. And for everyone who should see you.
Target shooting
The app calls out where the ball goes.
In the technique tests you hear which foot to shoot with and which corner to aim for. Afterwards every attempt is on video, and the app counts your hits.
Video of a fictional, AI-generated player: he takes a breath, runs up and shoots the ball into the top right corner. The app shows the target zones and counts the hit.
Right foot · top right
Target shooting
7 of 10 on target
Your tests
Ten tests in five areas.
Each test measures a skill that counts on the pitch. Goalkeepers get their own save test.
10 m acceleration
1.98 s
0.06 s
Speed
Acceleration over 10 m and a sprint over 30 m.
10 m acceleration · 30 m sprint
Countermovement jump
44 cm
3 cm
Jump power
The app works out your jump height from the flight time on video.
Countermovement jump · Squat jump
5-0-5
2.41 s
Agility
Quick changes of direction in tight spaces.
T-test · 5-0-5
Yo-Yo IR1
Level 16.4
Endurance
The Yo-Yo IR1 runs as a guided sequence with beeps from the app.
Yo-Yo IR1 · Cooper test coming soon
Target shooting
7 of 10 on target
Technique
The app calls out which foot to shoot with and where the ball goes.
Target shooting · First touch
Save test
5 of 8 saves
Goalkeeper
In the save test the app calls the corner, and the video shows every save.
Save test
How you measure
Your iPhone takes the measurements.
The app films in slow motion, gives the start signal and talks you through the technique tests.
Video of a fictional, AI-generated player: he sprints 10 metres, measuring lines rise at the start and finish, and the app times the run. 10 m acceleration: 1.98 s.
Measure
Your iPhone films in slow motion and sees the moment you cross the line.
Review
After every test, the result show tells you what changed.
Your card, duels and leaderboards count only the values the app measures itself.
Your player card
Your card grows with you.
Each test has one scale for everyone, from goalkeeper to striker. Your position decides how much each skill counts towards your overall rating.
Better values move your card up, from bronze to silver to gold. Add your photo, your position and your club crest.
Soon your birth year will count: the app will compare you only with players born in your year, with separate values for girls and women. At the start of each season on 1 July you move up and are measured against older players. Your results stay, you do not start from zero.
- Startbefore your first test
- Bronzeup to 64
- Silver65–74
- Gold75 and up
Sample data, fictional AI-generated player
Your position
Every position counts differently.
A center-back needs jump power, a winger needs pace. That is why your skills count differently towards your overall rating, depending on your position.
Your progress
See month by month what your training brings.
Test again regularly. The app shows your overall rating, every skill and your personal bests over time.
Overall rating
782 since last month
Skills
since last month- Speed281
- Jump power374
- Endurance179
- Agility277
- Technique170
Personal best
- 10 m acceleration
- 1.98 s
- Countermovement jump
- 44 cm
- 5-0-5
- 2.41 s
- Yo-Yo IR1
- Level 16.4
- Target shooting
- 7 of 10 on target
Duels with friends
Compare your card with your friends.
In 1 vs 1, your skills go head to head. As a team you play 2 vs 2, 3 vs 3 or 5 vs 5.
1 vs 1
- 1 vs 1
- 2 vs 2
- 3 vs 3
- 5 vs 5
You3 : 2
Luka| You | Luka | |
|---|---|---|
81 | Speed | 76 |
74 | Jump power | 78 |
79 | Endurance | 72 |
77 | Agility | 74 |
70 | Technique | 73 |
10 m acceleration
You
- Attempt 12.05 s
- Attempt 22.01 s
- Attempt 31.98 s
Luka
- Attempt 12.08 s
- Attempt 22.04 s
- Attempt 32.02 s
Test challenge
You both take the same test with up to three attempts each. You see the result as soon as you have both finished.
Every result comes from measured tests.
Matchday and week
Your week is built around matchday.
Add team training and matchday, including weeks with two games. Training and recovery follow from that.
Strength programmes, runs and technique sit in the same weekly plan. After the match, the app asks how it went.
81
Readiness today
Readiness
With Apple Health, readiness combines HRV, resting heart rate and sleep in one score.
Cardio cockpit
Performance counts.
This is about real performance: we track your load and recovery from real heart-rate data so you improve with purpose.
Wear a watch, a Polar H10 or a Polar Loop and every minute with heart rate counts, in training and in matches. Resting heart rate and HRV show you how well you recover.
Load this week
83minutes with heart rate
- Zone 1, Easy: 12 minutes
- Zone 2, Base: 40 minutes
- Zone 3, Tempo: 22 minutes
- Zone 4, Threshold: 6 minutes
- Zone 5, Maximum: 3 minutes
Training and matches
- Training
- 45 min
- Match
- 38 min
Recovery
- Resting heart rate
- 52 bpm
- HRV
- 61 ms
Your iPhone is all you need to start.
Add a smartwatch or a Bluetooth chest strap for heart rate, HRV and sleep.
Devices in the shopThe values come from your devices. The app does not replace a medical examination.
New
Your videos
Your game on video.
Upload your best moments, up to 60 seconds per clip. You decide who sees them: just you, your friends, or verified clubs and scouts.
- Every video stays private until you share it.
- One switch makes it visible to friends, verified clubs and scouts. No public link.
- Videos are available from age 10; under 18 only with a parent’s permission. You can take it back at any time.
Your videosNew
Training0:0510 m acceleration
Training0:09Target shootingMatchUpload a clip
Questions about Gearstack FC
Which tests does Gearstack FC measure?
Ten tests in five areas: speed (10 m acceleration, 30 m sprint), jump power (countermovement jump, squat jump), agility (T-test, 5-0-5), endurance (Yo-Yo IR1, with the Cooper test coming soon) and technique (target shooting at a mini goal, first touch). Goalkeepers get their own save test.
What do I need for the tests?
Your iPhone, a few cones and some space. For the 10 m acceleration test, two cones and 10 m are enough. The app shows you how to set up each test.
How is my overall rating worked out?
Each test has one scale for every position. All your tests make up your overall rating, weighted by your position. Up to 64 your card is bronze, from 65 to 74 silver and from 75 gold.
Will I be compared with players born in my year?
Soon, yes. The app is getting reference values for every birth year, with separate values for girls and women. At the start of each season on 1 July you move up an age group: your results stay, but you are measured against older players. Until then, one scale applies to everyone.
Do values I enter by hand count?
Your card, duels and leaderboards count only the values the app measures itself, on video or as a guided sequence.
Who can see my videos?
Only you, until you change it. One switch shares a video with friends, verified clubs and scouts; there is no public link. Videos are available from age 10, and under 18 only with a parent’s permission. You can take back any permission at any time.
Do I need a smartwatch?
Your iPhone is all you need to start. A smartwatch or a Bluetooth chest strap adds heart rate, HRV and sleep, and with Apple Health your readiness as well.
Is Gearstack FC available yet?
Not yet. Gearstack FC is coming soon to the App Store as its own iPhone app.
How much does Gearstack FC cost?
After the App Store launch, the subscription costs €4.99 a month or €49.99 a year, and the first 3 days are free. You can cancel at any time in your Apple Account settings.
Is Gearstack FC a medical device?
No. Gearstack FC is a fitness app. For medical questions, please see your doctor.
Take your first test.
Gearstack FC is coming soon to iPhone. The first 3 days will be free, then the subscription costs €4.99 a month or €49.99 a year.
Soon on the App StoreFor clubs
All values on this page are sample data. The players shown are fictional and AI-generated.