Amazon.com : Zorpia Pack of 5 Color Hand Held Tally Counter 4 Digit Mechanical Palm Clicker Counter - Assorted Color Handheld Tally Counter for Lap/Sport/Coach/School/Event (Pack of 5) : Sports & Outdoors
GripXT™ - Professional Set (Incl. Rep Counter)
Voice Workout Rep Counter - Apps on Google Play
Atlas: A Fitness Tracker That Counts Reps and IDs Exercises | Life by Daily Burn