HomeAppsHealth & FitnessHeart Rate NinjaApps like Heart Rate Ninja Here are some great alternatives to Heart Rate Ninja by Heart Rate Ninja : GymRats · Fitness challenge ★4.3 Uptivo ★4.4 FITIV Pulse Heart Rate Monitor ★4.0 paceUP! ★3.7 WorkoutApp ★4.9 Powerhouse Gym USA ★4.5 10 Gym App ★3.9 J. Smith Young YMCA ★5.0 The Works Health Club ★4.7 Bodyplex Fitness ★4.3 Base NJ ★4.2 Highpoint Fitness ★4.5 Point Loma Sports Club ★5.0 YMCA of Greater Waukesha. ★4.8 Katz JCC ★4.5 Defined Fitness ★4.7