Apps like O2X

Here are some great alternatives to O2X by O2X Human Performance :
ATAC
ATAC
★3.3
HWPO - Training app
HWPO - Training app
★4.9
Blacklist: Special Ops Shooter
Blacklist: Special Ops Shooter
★3.9
VSA
VSA
★4.7
TRX FORCE
TRX FORCE
★3.4
Special Forces team : SFT
Special Forces team : SFT
★4.3
A-CHAMPS ROXPro
A-CHAMPS ROXPro
★3.4
Tactical Strike: 3D Online FPS
Tactical Strike: 3D Online FPS
★4.1
V.O2: Running Coach and Plans
V.O2: Running Coach and Plans
★4.7
Idle Poly Battle
Idle Poly Battle
★3.7
Thenx
Thenx
★4.2
TrainAsONE Running App & Coach
TrainAsONE Running App & Coach
★3.5
RunDot
RunDot
★4.1
Tactical Shots: Shooting Game
Tactical Shots: Shooting Game
★4.0
Frontline: Panzers & Generals
Frontline: Panzers & Generals
★3.9
The MMA Doc
The MMA Doc
★5.0