3.2
32 reviews
1K+
Downloads
Content rating
Everyone
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About this app

Lief is a discreet biosensing patch that measures your heart and breath. Lief teaches you to control your body's natural stress response through gentle, safe biofeedback exercises. Reduce triggered responses and keep mindful and in control throughout your day.
Updated on
Aug 29, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, Health and fitness and 4 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

3.2
32 reviews
Sammy Lincroft
January 28, 2023
Good device but terrible software. No way to connect to any other applications. No way to see your hrv or hr graphed over time with values. No way to see hrv graphs longer than a day at a time. No way to see hr graphs at all. No way to see trends longer than 1 month. Also stickers are rediculously overpriced. The $20 for 15 is completely misleading when there is a $35 shipping fee that is attached even if you try to bulk order.
2 people found this review helpful
Did you find this helpful?
Lief Therapeutics
February 1, 2023
Hi Sammy, thank you for your feedback. We deeply respect your advice. Rest assured that we are constantly trying to improve our services to provide a better experience. We appreciate it if you could send us an email at support@getlief.com to further assist you.
Andrea
September 17, 2021
The Lief and the app are absolutely amazing, such a great product. I'm having a small issue with the app not showing my progress but that might be because I just started again after not using it for a long while. Hopefully it can be fixed but either way 5 stars because this is such a cool device & I think they've done an amazing job with it :)
2 people found this review helpful
Did you find this helpful?
Lief Therapeutics
March 17, 2022
Thank you for your kind feedback. We are aware of this problem and are currently working on solving it. Please update your app to the latest version when you see an option.
James Patton
September 20, 2023
Never really experienced any benefit from the app. I suspect it's helpful for dealing with the modern life rat race, but it proved wholly unhelpful in the face of actual traumatic life events, by which I mean significant Holmes-Rahe LCUs. Unfortunately, the subscription model means they keep charging you if the trauma means you forget about their app that doesn't help you. To their credit, they stopped charging me after getting roughly $1100 for no results and a completely failed relationship.
Did you find this helpful?
Lief Therapeutics
September 29, 2023
Hi James, we're truly sorry if our app didn't meet your expectations during a challenging time. We strive to offer continuous support, but we understand everyone's needs are unique. We take your feedback seriously and are here to help. Please reach out to us at support@getlief.com to discuss your concerns.

What’s new

Bug Fixes and Improvement

App support

About the developer
Zenso, Inc.
support@getlief.com
2703 7th St Ste 301 Berkeley, CA 94710 United States
+1 415-938-6202