Plank Challenge: Core Workout
Plank Challenge: Core Workout is made and published by Bo Kalvslund. AppBrain is an independent app data site and isn't affiliated with Bo Kalvslund. The app name, icon, screenshots and description belong to Bo Kalvslund and are shown as published on the App Store.
AppBrain's verdict
EstablishedLoved by users- Rating on App Store
- 4.72
- 471 ratings
- Last updated
- September 29, 2026
- Size
- 17.2 MB
Users love it: 4.7 stars from 471 ratings.
User feedback
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Store listing
By Bo Kalvslund, from the App Store
Description by Bo Kalvslund Written by the developer, not by AppBrain. Click to read.
Plank Challenge is a proven, progressive program that takes you from beginner to a 4-minute plank, step by step.
HOW IT WORKS
- Train 4 days, rest 3 – your muscles get time to recover and grow stronger
- Progressive plan designed to prevent injury
- Clear daily instructions and progress tracking
- Bonus: build from 1 to 100 push-ups at your own pace
WHY PLANKS?
Planks strengthen your abs, back and arms at the same time. They're one of the most effective bodyweight exercises for core stability and overall strength.
FEATURES
- 5-week structured program
- Push-up challenge from 1 to 100
- Progress tracking
- Apple Music integration – your music resumes automatically after each workout
- Simple, distraction-free design
FOR BEGINNERS AND RETURNERS
Whether you're brand new or getting back into shape, the program meets you where you are.
PRO
- Ad-free
- 4 premium themes
- Trophy Room
- Advanced statistics
- Lifetime access – pay once
Join 127,000+ people who have built a stronger core with Plank Challenge. Download now and see what you're capable of.
Safety and technology
Found in the app by AppBrain- Price
- Free
- App size
- 17.2 MB
- Content rating
- Everyone
Technologies used by Plank Challenge: Core Workout
Releases
Updates seen on the App Store- Version
- 5.4
- Launched
- February 2016
No changelog data
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Rankings
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About the app and developer
About Plank Challenge: Core Workout
Plank Challenge: Core Workout is a health & fitness app developed by Bo Kalvslund.
What is the rating of Plank Challenge: Core Workout?
Plank Challenge: Core Workout is rated 4.72 out of 5 stars, based on 470 ratings.
Is Plank Challenge: Core Workout free?
Plank Challenge: Core Workout is free. The app size is 17.15 MB. The latest version available is 5.4. The last update was on September 29, 2026.
What are the requirements for Plank Challenge: Core Workout?
The app has a content rating of Everyone. The app has been available on the App Store since February 2016.
Developer information for Bo Kalvslund
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Frequently asked questions about Plank Challenge: Core Workout
Is Plank Challenge: Core Workout free?
Yes. Plank Challenge: Core Workout is free on the App Store.
Is Plank Challenge: Core Workout still available?
Yes. Plank Challenge: Core Workout is on the App Store, and the last update we saw was on September 29, 2026.
How large is Plank Challenge: Core Workout?
Plank Challenge: Core Workout is 17.15 MB.
Is Plank Challenge: Core Workout suitable for children?
App Store rates the content of Plank Challenge: Core Workout as suitable for everyone.
How do people rate Plank Challenge: Core Workout?
Plank Challenge: Core Workout scores 4.72 out of 5 stars, from 471 ratings on the App Store.
Who made Plank Challenge: Core Workout?
Plank Challenge: Core Workout was developed by Bo Kalvslund. It is listed in the health & fitness category on the App Store.
What are the best alternatives to Plank Challenge: Core Workout?
People looking at Plank Challenge: Core Workout also look at these health & fitness apps: The 30 Day Plank Challenge, 30 Days Plank, 30 day - plank challenges, At Home Plank Workouts, 5 Min Super Plank Workout.