Propeller 12+

Take Control of Asthma or COPD

Reciprocal Labs

    • 4.7 • 1.1K Ratings
    • Free



Propeller can help you to follow your treatment plan and take control of your asthma.

Propeller is a digital health tool that has been used by over 100,000 people worldwide. The Propeller sensor discreetly attaches to your asthma inhaler, gathers information about your medication use and sends that information to the Propeller app. The app builds your profile and provides personalised support to help you follow your doctor-recommended treatment plan.

Have a complete record
The Propeller sensor and app automatically record when you use your medication.

Never forget a dose
Medication reminders can include chiming sensors, push notifications and in-app reminders.

Reports at your fingertips
Monthly summaries of inhaler use are accessible in the Propeller app and by email, and they can be easily shared with your doctor.

Start each day with confidence
A daily Asthma Outlook plus air quality and weather forecasts are generated based on your location.

Discover your triggers
You can keep a record of when and where you use your reliever inhaler to help learn what may be causing your flare-ups.

Find a lost inhaler
You can use the Find My Inhaler feature of the Propeller app to 'ring' a misplaced inhaler.

View all your health data in one place
Propeller can use HealthKit to export your inhaler usage data into the Health app and to read activity data.

What’s New

Version 7.10.0

This update includes bug fixes and performance improvements. Get the latest version and breathe easier with Propeller.

Ratings and Reviews

4.7 out of 5
1.1K Ratings

1.1K Ratings

t.rose13 ,

Must download for asthma

Hi all! I was diagnosed with asthma since I was a toddler. I’ve struggled all my life to monitor, control, find triggers, etc. I’ve used inhalers all my life nearly everyday. Although my asthma has improved significantly, I still find this app and inhaler device to be extremely helpful. I love that I can keep track of my symptoms and triggers. I not only get a weekly report but I can always be informed when seeing a doctor. This is very important because I am sure just like many others who suffer from asthma, we are not 100% sure how we are actually doing. Additionally, the best part (for me at least lol) is that I can beep for my inhalers because of the device. I cannot count how many times I’ve misplaced my inhalers and also needing to use them in that exact moment. This service is wonderful and has brought me to tears because there are people out there making such beautiful technology for those in need. Thank you to everyone at Propeller!

Developer Response ,

Thank you so much for your feedback, and we're so glad Propeller has been helpful for you! Our team would love to use your review in a patient testimonial. If this is alright with you, please let our team know at, we look forward to hearing from you. Breathe well!

EricaCane ,

Wow, this has been a lifesaver product!

I never write reviews, but this app was SO GOOD I had to share my experience with everyone. This is a super sleek, well-executed health tracker to help people with asthma. I was recently diagnosed with asthma about a week ago. I struggled with the symptoms for multiple years. I finally got the correct diagnosis but I never could pinpoint what was causing the issues. While looking for air quality apps, I saw this app and thought I would give it a try. I saw I could get a free tracker to go with my rescue inhaler. It was super quick shipping and FREE 🥳 I’ve used it with the app over the past week and within a few days I had tons of data on symptoms and usage— I finally now know my triggers. As an Engineer, I was happy to see this app does *truly does* trending and analysis. You can access cool reports on usage and reliable forecasts. App Devs, you’re really contributing to making lives of people better. ❤️ Thank you and well done.

Developer Response ,

Hi Erica, thank you for your feedback! We're so glad to hear that our program is helpful for you. Please don't hesitate to reach out to us if you have any questions, we're always happy to help! Breathe well!

Hamburger27894 ,

The app, the idea, and execution, are FLAWLESS.

First and foremost, I truly believe Propeller was sent from above. I recently had my life-long father figure pass away due to uncontrolled COPD. I feel like this app was advertised to me on Instagram for a reason.
I scrolled by the ad ,and immediately went back to it. I checked it out, and saw that I might be eligible for free sensors... which I was.

At this point I had no idea what it was. I saw the app had about 14 reviews though, which I thought was a sign of an unfortunate launch. Man was I wrong. Right off the bat I was blown away by the app’s functionality and how polished it was. It’s feature complete. It’s smooth. It gives important insight.

For those of us who are bound to corticosteroids for the rest of our lives, Propeller is a godsend. I can’t say it enough. The sensors have alarms and remind you daily when to use your maintenance inhalers. You get a notification on your phone as well. I can barely

I can’t say it enough. This app and the inhaler sensors have my asthma under control better than ever.

Imagine that there are millions of apps out there that have no purpose besides collecting money through micro transactions and advertisement.


Thank you so much. If you guys need a testimony for a commercial, I’m your guy.

Developer Response ,

Hi there, thank you so much for your feedback! We're glad to hear you find the Propeller program valuable. We would love to speak with you about a testimonial! Please send us an email at and we'll get everything set up. Breathe well!

App Privacy

The developer, Reciprocal Labs, 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 Linked to You

The following data may be collected and linked to your identity:

  • Health & Fitness
  • Location
  • Contact Info
  • User Content
  • Identifiers
  • Usage Data

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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