Firefly: Workout Habit Trainer

Firefly: Workout Habit Trainer

Form Coach & Fitness Planner

124 ratings
12 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • October 10, 2023
  • July 11, 2026

Features

Firefly: Workout Habit Trainer video #1 for iPhone
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Firefly: Workout Habit Trainer screenshot #9 for iPhone
Firefly: Workout Habit Trainer screenshot #10 for iPhone
Firefly: Workout Habit Trainer screenshot #11 for iPhone
iphone
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About

This app uses your phone's camera to provide real-time form feedback for workouts and stretches. It offers personalized guidance, tracks progress, and helps build consistent fitness habits without extra hardware or scheduling.

Real-time form feedback
Mobility accommodations
3D movement replays
Personal accountability tracking
7-day workout framework
Customizable routines
Gamified workouts with badges
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What's New in Firefly

4.6.35

July 11, 2026

- Bug fixes and enhancements

Subscription plans

12 Month

12 Month Subscription

$119.991 Year
7 Days trial
Price Updates
July 16, 2026$119.99
May 9, 2026$99.99
April 17, 2026$89.99
April 13, 2025$79.99
July 12, 2024$19.99
How to cancel Firefly subscription ⁉️
28

In-App Purchases

$299.99

Lifetime Premium

Receive your lifetime premium membership

User reviews

Amazing app

Finally I found a right AI fitness trainer works for me

Response from developer

Thank you! Please feel free to give us constructive feedback as we want to learn more! We're on a journey to help people reach their fitness goals in a more affordable way. Appreciate your support and hope to help more people like yourself! As always, please be safe during your workouts! Contact us at anytime at: fireflyapp.customer@gmail.com.

Frustrating

The AI camera function is not that accurate. I have to do 100 squats, lunges, or whatever else to get 15 good reps. It took 45 min because apparently I wasn’t doing the lunges correctly. Even when I adjust the coach setting it’s difficult to get through a workout. Extremely annoying and frustrating.
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Response from developer

*Update: We released an update that increases your volume at the start of the workout so you know about the verbal feedback feature in the beginning. Hope this helps! Hi Snacks86! Thank you for this honest review. 100 reps and 45 minutes is a LOT of effort, and we really appreciate your insane effort. We'll do better on our part to make the instant verbal feedback feature clearer so you don't have to realize the mistakes after so many attempts. Having to constantly adjust the coach setting mid workout has to be very annoying. While we do want to accommodate different mobility levels to help everyone, it shouldn't be that frequent. Please feel free to send us more of these so we can continue to learn and make the app better for everyone. (fireflyapp.customer@gmail.com). As we continue to adapt, we hope to provide you with a much better experience next time. Thank you! :-)

The gesture demo and detection could be improved

Thanks the developers for this app. It makes me feel being accompanied and instructed when doing exercises at home. First, we want good looking coaches, both in face and body, use AI to create some please. Second, the gesture detection is too harsh. For example, I cannot keep my legs straight up immobile when doing toe touch. Can we have the choice to set the difficulty level, like easy, normal, strict?

I will come back with a 5 star if the improvements hit me soon.
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Response from developer

We're really happy to hear that! Yes, we want to film with trainers for the videos to make it look nicer! For now, we want to provide proper demonstrations, but it's a bit difficult for AI to capture the micro movements properly. At least with our current skillset. I'm glad you mentioned it! Yes, you can tap the screen during your workout and then click the orange gear icon. From there, you can adjust how strictly the AI coach grades you. (Feel free to view the tutorial for a better visual explanation. Profile tab -> App Demo Video). We understand that everyone has different levels of mobility for different exercises so please set it to what you feel comfortable. :-) As always please be safe when exercising and hope you see results in the coming month! To extend this conversation, feel free to shoot us an email: fireflyapp.customer@gmail.com. Thank you!

Premium Not Free

This app was posted in App Advice for a free premium. As well in the App Store it says premium free until August 10th.
Premium is showing an annual fee

Response from developer

Hello! Yes, sorry about that. During the App Advice campaign, the free lifetime premium access appeared after you dismissed the initial paywall. Consider trying out the free trial for unlimited access! (You can cancel it right after if you want) If you do get the chance to try it out, feel free to send your suggestions or issues at: fireflyapp.customer@gmail.com.

App gone free

It was advertised to be free for a year but downloaded it and it wasn’t “free” at all

Response from developer

Hello! That is unfortunate. Our free lifetime access during the App Advice campaign appeared after you dismissed the first paywall between Aug 8th - 10th. We're sorry that it didn't appear for you and hope you would consider trying out the free trial for unlimited access! If you have any more suggestions or issues, feel free to email us: fireflyapp.customer@gmail.com

Developer apps

FAQ

What does Firefly: Workout Habit Trainer do?

Firefly uses your phone's camera to provide real-time feedback on your workout form and posture. It helps you build good fitness habits by correcting your movements with verbal and visual cues, ensuring you perform exercises correctly and safely.

What are the key features of this fitness app?

Key features include real-time form feedback on every rep, adjustable mobility accommodations for personalized grading, 3D stick-figure replays to review and improve form, personal accountability by counting only correct reps, and a 7-day workout framework to build lifelong habits.

How much does Firefly: Workout Habit Trainer cost?

The app is free to download and use, offering in-app purchases for additional features or content. Specific pricing for premium features or subscription models is not detailed in the provided description.

What kind of workouts can I do with this app?

The app provides a 7-day workout framework and a library of trained poses and movements. It's designed for various exercises and stretches, adapting feedback to your form to drive progress and help you build consistent workout habits.

Is this app suitable for beginners or advanced users?

The app is designed to help individuals build good workout habits and make the most of their workouts. Its mobility accommodations allow users to adjust how strictly the AI coach grades their form, making it adaptable for different fitness levels.