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Features

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About

This app coaches you through personalized isometric strength training workouts using a portable device. It measures your strength, tracks progress, and provides detailed stats to help you identify weaknesses and prevent injury. Achieve a full-body workout in minutes, anywhere, anytime.

Personalized isometric workouts
Strength measurement
Progress tracking
Workout of the day
Muscle group stats
Exercise streak tracking
Apple HealthKit integration
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What's New in Activ5

1.12.8

May 8, 2026

- Bug fixes and performance improvements

User reviews

App no longer pairs with device

They let the early adopters down by not maintaining the app. On a phone running iOS 26.5, device cannot be found in Bluetooth. Nor can you pair it in the app: the LED light on the exercise device alternatively flashes green, then blue, with an error message of “cannot connect. Try again later”.

Great!

A great app for a wonderful exercise machine. Isometric exercises are so important, and being able to measure your strength progress with this tool is fantastic.

Love the device, hate this app

Seems to allow no flexibility for choice of exercises besides its presets. Isn’t there a Freeform option?

Potentially great, but flawed execution

Really wanted to give this a 5* review, but every time I try to get back to using it I get frustrated.

The first issue is hardware… why is it not rechargable, or at least designed to easily replace the battery? The awkward and fragile clips to get to the battery feel like they’re going to break every time I replace it (which is every time I dig it out of the drawer and think maybe I’ll try again)

Second, and the reason it ends up back in the drawer, is the app. It’s iPhone and ‘portrait’ only. No landscape on an iPad, which really isn’t a huge ask for a device that’s really designed to use landscape and that’s how the folios, cases, and even the stand that comes with the device encourage you to use it that way (the iPad falls off if I do put it in portrait orientation!). I gave this feedback when I bought the device - 3, maybe 4, years ago now, support said it was coming “real soon” … guess their idea of soon and mine isn’t the same.

Fix the software, and I’d consider it a 4 star device (the battery situation is going to cost it the final star).

Right now, once again, the device is sitting on my desk, open, waiting for a battery … that I’m probably not going to bother putting in because the landscape issue means I know I’ll use it for a week, never get into the habit, and back in the drawer it’ll go
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Feature needed

Would love if there was a way to test my strength in different movements and see how they progess over time without being in a workout.

Developer apps

FAQ

What does the Activ5 app do?

The Activ5 app coaches you through personalized isometric strength training workouts using a portable device. It measures your strength, tracks your progress over time, and provides detailed statistics on muscle groups to help you identify weaknesses and prevent injuries. It offers a convenient way to get a full-body workout in minutes, anywhere.

What are the key features of the Activ5 app?

Key features include a workout of the day, professionally designed personalized workouts, automatically adjusted effort levels based on your strength, detailed stats on muscle groups and symmetry, exercise streak tracking, and integration with Apple HealthKit. The app focuses on isometric exercises for effective strength building.

How much does the Activ5 app cost?

Based on the provided information, the Activ5 app is free to use. There are no mentions of in-app purchases or subscription fees for the application itself. The core functionality of the app is available without cost.

What kind of workouts does Activ5 offer?

Activ5 specializes in isometric exercises, which involve contracting muscles without changing their length. This method allows for a full-body workout in a short amount of time. The app provides personalized routines and adjusts effort levels to suit your current strength, making it suitable for various fitness levels.

Is Activ5 compatible with other health apps?

Yes, the Activ5 app integrates with Apple HealthKit. This integration allows you to sync your workout data and progress with your overall health metrics tracked within the Apple Health ecosystem, providing a more comprehensive view of your fitness journey.