Ellim is a free AI-powered personal coach and fitness app for iOS. It features an AI workout generator that creates personalized workout plans in seconds, a library of 3,500+ exercises, meal tracking with AI food recognition, comprehensive progress tracking, and pre-built workout routines.

How does the AI personal coach work?

Describe the workout you want in plain English — for example, "upper body strength workout" or "30-minute HIIT session." Ellim's AI personal coach instantly generates a complete workout plan with exercises, sets, reps, and rest periods, matched from our library of 3,500+ exercises.

Is Ellim free to use?

Yes, Ellim is completely free to use. Core features including the AI workout generator, exercise library, workout tracking, meal logging with food search and barcode scanning, and pre-built routines are available at no cost — no ads, no credit card required. AI food recognition from photos is available as a premium feature.

What types of exercises does Ellim include?

Ellim includes over 3,500 exercises across multiple categories including weight training, bodyweight exercises, stretching and flexibility routines, and cardio workouts. Each exercise comes with detailed instructions.

Can Ellim create personalized workout plans?

Yes, Ellim's AI personal coach creates fully personalized workout plans based on your goals, preferences, and workout history. You can also build custom routines manually or choose from 100+ pre-built workout programs.

Does Ellim track meals and nutrition?

Yes, Ellim includes a dedicated Meal tab for tracking your nutrition. You can search for foods, scan barcodes to add items instantly, or use AI-powered food recognition to identify what you're eating from a photo. Food search and barcode scanning are free, while AI photo recognition is a premium feature.

All Exercises

Jumping Jack High Knee

Master the Jumping Jack High Knee, a dynamic cardio exercise that blends traditional jumping jacks with powerful high knee drives to boost agility and

Intermediate

Compound

Push

1 min per set30s rest

Plyometrics

Body weight

Description

A high-intensity cardio exercise that combines traditional jumping jacks with high knee movements, enhancing both your agility and cardiovascular endurance.

How to Do Jumping Jack High Knee

1
Setup
Stand tall with your feet together and arms resting at your sides, maintaining an upright posture.
2
Setup
Engage your core muscles, keep your chest lifted, and maintain a neutral gaze forward.
3
Perform a jumping jack by simultaneously jumping your feet out wider than shoulder-width apart and raising both arms overhead until your hands meet.
4
Immediately jump back, bringing your feet together, and as you land, explosively drive one knee towards your chest while swinging the opposite arm forward for balance.
5
Quickly return that foot to the ground and repeat the jumping jack motion, then drive the other knee towards your chest on the subsequent landing.
6
Maintain a fast, continuous rhythm, alternating which knee you drive up with each jumping jack cycle.

Tips

Focus on controlled landings by landing softly on the balls of your feet to absorb impact and protect your joints, then quickly transition into the next movement.
Actively pump your arms in opposition to your legs during the high knee phase to help generate momentum and maintain a consistent rhythm.
Exhale sharply as you drive your knee up and inhale as you land and prepare for the next repetition to maintain optimal oxygen flow and endurance.
Keep your abdominal muscles braced throughout the entire exercise to stabilize your torso and improve overall balance and power.

Common Mistakes

×Not lifting the knees high enough reduces the exercise's intensity; ensure your knees reach at least hip height with each explosive drive.
×Rounding your back or looking down compromises spinal alignment and breathing efficiency; keep your chest up and gaze forward throughout the movement.
×Landing flat-footed or with stiff legs can put undue stress on your joints; aim for light, quiet landings on the balls of your feet.

Variations

Compound

Knee Tuck Jump

Boost explosive power and elevate your heart rate with the Knee Tuck Jump. This high-intensity plyometric exercise targets your lower body and core.

Improve agility and lower body endurance with the Alternating Step Out. This dynamic bodyweight exercise targets your glutes and quads, enhancing lateral

Beginner

PlyometricsBody weight

Track Jumping Jack High Knee in your workouts

Log sets, reps, and weight. See your progress over time.

Get Ellim — Free