HIIT Flow - Monster Muscles
Simple HIIT - no subscription
$2.99 · Designed for iPad. Not verified for macOS.
Simple. Fast. Effective. No ads, no fees, no BS. Monster Muscle HIIT gets you moving instantly - just open and go.
Sick of bloated workout apps with endless onboarding and surprise fees? Me too. That’s why I made this. Just a simple HIIT workout app with no onboarding, basic customization, and effective exercises.
Monster Muscle HIIT is a no-nonsense workout app designed to get you moving immediately. No accounts, no tracking, no subscriptions, no annoying intros. Just a quick HIIT session that fits into your workout, or anytime you need a fast, effective burn.
Why I Made This:
Every HIIT app I tried had a 30-minute-long onboarding process where you enter your life's story only to be hit with a subscription fee at the end of it all. There's nothing more annoying than sitting in the gym trying to find an app that works, going through a whole questionnaire, and then being hit with a paywall before you can even see your workout. Even after all the questioning and fees, the workouts were always the same cookie-cutter sets. So I built this app out of pure frustration.
What You Get:
-Instant access to a customizable HIIT timer
-Zero onboarding; just open and start. What you see in the preview is exactly what you get.
-No subscriptions. No ads. No fluff.
-One-time $2.99 purchase. That’s the only fee you'll ever pay.
I’m not trying to make a profit. I’m not collecting your data. I just wanted a simple HIIT tool that respected my time, and maybe yours too if you choose to download it.
The developer, Emmalina Calcaterra, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Emmalina Calcaterra
- Size
- 29.3 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 14.0 or later.
- iPhone
Requires iOS 14.0 or later. - iPad
Requires iPadOS 14.0 or later. - iPod touch
Requires iOS 14.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- Copyright
- © 2025 Emmy Calcaterra
