1v1 battles,
live & verified
Queue up, get matched, and out-rep a real opponent in real time — the AI judges every single rep.
ARCK turns your workout into a live 1v1 battle. Your camera's AI counts every rep — no cheating, no excuses. Win matches, climb the ranks, become a legend.
Your phone's camera watches your form and counts every rep in real time. No cheating, no fake scores — just honest reps.
Get matched against a real opponent and go head-to-head. Most reps before the clock hits zero takes the win.
Climb from E all the way to Void. Every match moves your Rex — win and rise, lose and fall.
Show up every day, complete quests, and keep your streak alive for bonus rewards.
Unlock premium themes and banners that reskin the entire app. Make your profile unmistakably yours.
Add friends, check the Hall of Legends, and see exactly where you stand in the world.


Queue up, get matched, and out-rep a real opponent in real time — the AI judges every single rep.
Every match moves your Rex. Win and rise through the ranks; lose and fall. Only the strongest reach Void.
Unlock premium themes and banners that transform how ARCK looks. Make your profile unmistakably yours.
Tap "Download for Android". The ARCK.apk file saves to your phone.
Open the file and, if asked, allow installs from this source. That prompt is normal for any direct download.
Launch ARCK, sign in, and jump into your first match. Your camera does the rest.
Yes. ARCK installs straight from this page like any app outside the Play Store, so Android shows a routine "allow this source" prompt — that's standard, not a warning about ARCK. There are no ads, no hidden charges, and your camera is used only to count reps. Tap Install anyway and you're in.