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

High Knee Lunge on Bosu Ball

Master the high knee lunge on a Bosu ball to boost balance, coordination, and lower body power.

Advanced

Compound

Push

1 min per set30s rest

Plyometrics

Bosu ball

Description

A high intensity exercise that involves lunging with one foot on a Bosu Ball while raising the opposite knee.

How to Do High Knee Lunge on Bosu Ball

1
Setup
Place the Bosu ball dome-side up on a stable surface. Stand facing the Bosu ball, about one step away.
2
Setup
Place your right foot firmly in the center of the Bosu ball, ensuring your entire foot is stable. Your left foot should remain on the floor, hip-width apart from your right foot.
3
Inhale and slowly lower into a lunge, bending both knees to approximately 90 degrees. Keep your torso upright and core engaged.
4
Exhale, powerfully drive through your right foot on the Bosu ball, extending your right leg and simultaneously bringing your left knee explosively towards your chest.
5
Control the descent as you return your left foot to the starting position on the floor, immediately transitioning into the next lunge. Complete all reps on one side before switching.

Tips

Focus on Stability First: Prioritize maintaining balance on the Bosu ball before adding speed or height to the knee drive; a stable foundation prevents injury.
Engage Your Core: Actively brace your abdominal muscles throughout the movement to help stabilize your torso and improve overall balance.
Controlled Descent: Control the eccentric (lowering) phase of the lunge to build strength and improve stability, rather than just dropping down.
Arm Drive: Use your arms to assist the high knee drive, swinging the opposite arm forward as the knee comes up, similar to sprinting mechanics.

Common Mistakes

×Losing Balance: Many people rush the movement and lose balance; focus on a slower, controlled descent and a stable push-off to maintain equilibrium.
×Knee Caving In: Allowing the knee of the standing leg to cave inward (valgus collapse) can strain the joint; actively push your knee outwards, tracking over your second toe.
×Leaning Too Far Forward: Excessive forward lean during the lunge puts undue stress on the lower back; keep your chest upright and engage your core to maintain a neutral spine.

Variations

Compound

Single Leg Stand on Bosu Ball

Improve balance, proprioception, and lower body stability with the Single Leg Stand on Bosu Ball.

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 High Knee Lunge on Bosu Ball in your workouts

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

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