# Lief App — user reviews > 47 indexed App Store user reviews of Lief App by BrainBot, Inc.. - Source: https://appshunter.io/ios/app/lief-app/id1289075477/reviews - App overview in markdown: https://appshunter.io/ios/app/lief-app/id1289075477.md ## Newest reviews (11 of 47) ### 3/5 — Difficult to Connect *2025-05-20* I like the Lief device when it is working. However, most of the time there is connectivity problem. A friend also has the same problem with Lief. Customer support is not much help. ### 3/5 — Not reliable for the $$ *2025-03-02* When you pay over $230 for something you expect no problems. The self pacing doesn’t work 1/2 the time (the buzzing). The HR/HRV meter seems to work fine. ### 2/5 — Buggy app *2024-09-29* The device itself is great but the app is incredibly buggy and currently I am unable to open it at all. Defeats the purpose of spending all this money on the device ### 2/5 — Can you add button to turn off vibration? *2022-08-14, version 5.6* So annoying experience to have for heart beat rhythm ### 5/5 — gamechanger for my mental health. *2022-03-17* The Lief device and app experience has been wonderful for me. The real time HRV readings have helped me figure out when I’m feeling most triggered by stress. After using it regularly, I’ve reduced my stress, improved my productivity and mood, and feel calmer. ### 5/5 — Learning to self-regulate *2022-03-16* I’m a disabled combat veteran that has struggled with PTSD, anxiety, and depression. Wearing Lief every day for over a month has helped me learn to self-regulate and establish one of the most impactful well-being habits on my healing journey. Every time my body goes into a stress state, Lief invites me into a calming practice that synchronizes my breath with my heart. I'm learning to calm my system on demand. My spouse says I’m a much happier, balanced, and peaceful person as a result. I’m excited to see how much better I’ll feel after another few months of practice. I highly recommend Lief to anyone seeking support to upgrade their nervous system. **Developer response:** Hi yeshua_1984, thank you for sharing your experience with us. We are honored to hear that our program helped you to control and balance your emotional state. We're glad to be able to be part of your well-being journey. We look forward to helping you more! ### 5/5 — An excellent HRV and stress wearable *2022-03-12, version 5.3* This has been so helpful in reducing my stress by teaching me how to breathe properly. The coach was excellent as well. ### 5/5 — Love it *2022-01-12* Lief has been instrumental in helping keep the anxiety at bay, and teaching me how to properly breathe to calm the nervous system. **Developer response:** Hi S Cuddles, thank you for sharing your experience with our program. We do work incredibly hard and spend a lot of hours improving our program which we think will be of value to our community. Sharing yours keeps us going! ### 3/5 — Almost super awesome *2021-12-12* It is glitchy but it is also awesome. When it is working adequately I would have my phone to the side of me on my desk and would be able to see when it was going into orange or red and then breathe back to a blue state. ### 2/5 — App is glitchy *2021-11-03* It often takes multiple tries (opening and closing the app) for the app to connect to the Lief. It does not reliably download data from the Lief once connected. Finally, the app does not provide adequate breakdown of data in a format that is legible and useful. The bar graph at the top of the display is inadequate and hard to see. There is also no easy way to compare your data at certain times of day over time. There is also no way to add notes of what activity you were performing when your HRV dropped or rose (you can sort of track moods). I am not using a Lief Coach because the device was marketed as usable without one, but you are getting a less than basic experience if you’re just relying on the app. **Developer response:** Hi Hogsheads chagrined, Thank you for reporting this issue. We've been constantly improving our app to eliminate any glitches, crashing issues, or real-time data concerns, especially if it's feedback from our users. It will be our pleasure to provide you better app service if you can give us another chance. Customer support will always be there for you by contacting us at support@getlief.com. ### 3/5 — App crashing *2021-06-23, version 4.4* App no longer opening (or it opens on 10-20 tries$. Perhaps from latest iOS update? Hope it is fixed soon! ## Most critical reviews (10 lowest-rated) ### 1/5 — Unable to download the latest update on iOS 15 Pro *2025-08-25* Unable to download the latest update of the App. Tried deleting the app, restarted the phone multiple times and different networks with no success. ### 1/5 — Update broke the app on Day 2 *2025-08-24, version 8.1* I only got to use Lief for 1 day before version 8.1 bricked it. Now it’s stuck on the pulsing screen and won’t connect on either iPhone or Mac. Please fix ASAP — I’ll update this review once it works again. ### 1/5 — Annoying check in feature *2024-12-24* Of utmost importance with an app like this is convenience and usability. Every time you open the app it asks you to “check-in”. The AI help and regular support failed to help me turn off this feature. Really annoying. ### 1/5 — They have deactivated the cancel subscription button *2024-06-06* No way to cancel your subscription. The button doesn’t work. The only button in the entire app that doesn’t do anything when clicked. I’ve emailed support 3 times and just got charged $99 again. Criminal. ### 1/5 — Does not work as intended *2022-07-09, version 5.5* You need to have app opened in the background to work, which drains battery. Downtime vibration intensity can’t tell the difference between a 1 or 10. The intensity feels like a 10 no matter what level you set it to. ### 1/5 — Lief app is extremely basic *2022-06-08* This app is very basic especially when compared to competitors like aura rings app. and more importantly the subscription model used by lief is extremely overpriced for what you get which is basically a HRV monitor for 1200 USD a year that you can Never own. Either lower the subscription to 10 per month or sell the device for a few hunded dollars at max it’s not with any more than that. ### 1/5 — Super disappointed in this company *2021-12-15* There are no instructions and the data is so hard to see and/or understand. When I tried to get help, the company tried to sell me coaching. I needed customer service to explain the product. Super disappointed in this company. **Developer response:** Hi Melissa, We sincerely apologize for the experience you had with our program. We always make sure to provide all the self-starter pack materials needed, including manuals or instructions for users who don't need coaching. We also have our Help Center (https://intercom.help/getlief/en) on our website in case you missed the instructions on your package and on your email. We'd love to have another chance with you and we'd be happy to assist any time you need. ### 1/5 — Not a good update. *2021-09-14, version 5.0* Very unstable and not at all user-friendly. This app has completely spoilt my Lief experience. ### 1/5 — Terrible *2021-04-25, version 4.4* App just crashes, kills battery, and there is no customer support. None. ### 1/5 — App very unstable after recent updates *2021-03-04, version 4.3* App very unstable after recent updates ## Most praised reviews (10 highest-rated) ### 5/5 — Awesome HRV-B device *2025-02-27* This is the only wearable that’s taught me what to do to raise my HRV. The Downtime breathing has really helped me learn to regulate my nervous system and learn what my stressors are and how to work through them. **Developer response:** Hi Nicole, Thank you for sharing your feedback on our program, your experience with us is giving us more reason to keep helping more people. We hope to help more individuals like you in the future! ### 5/5 — Stress managed, thanks to Lief!! *2023-04-27* Lief is a great app that has helped me manage my stress levels. The app is easy to use and has a plenty of great features that’ve helped me track my stress levels, learning how to manage them. The interface is very intuitive and the app is very beginner-friendly. I love how the app provides personalized recommendations based on my stress levels and helps me find ways to relax and de-stress. I would definitely recommend Lief to anyone looking for a great stress management app. **Developer response:** Hi there, thank you for your great review of the Lief app! We're glad it has helped you manage stress and provided personalized recommendations for relaxation. Your recommendation means a lot to us, and we truly appreciate your support. If you have any further feedback or suggestions, please don't hesitate to reach out. We're here to support you on your stress management journey :) Thank you again for your positive review of Lief. Wishing you continued success and well-being :) ### 5/5 — First ever review for a app ever *2022-09-09* After a month of use this magical device. I have seen a huge increase in my daily battle with anxiety. One of the best decision I have ever made. Thank lief for making this life changing/saving device **Developer response:** Hello, thank you for sharing your experience with our program! We're glad to hear that we helped you with your anxiety. We do work incredibly hard and spend a lot of hours improving our program which we think will be of value to our community. Sharing yours keeps us going! ### 5/5 — Best HRV biofeedback wearable I’ve tried *2022-09-08* After my therapist encouraged me to use heart rate variability biofeedback to help with my anxiety, I started using Lief bc it’s the only HRV wearable that provides real time feedback and automatic doses based on when my HRV dips. Best decision I’ve made. I’m able to calm myself down more effectively whenever I need. Coach was great too. **Developer response:** Hello, Thank you for sharing your experience with using Lief, it is giving us more reason to keep helping people. We hope to help more individuals like you in the future! ### 5/5 — Really helps with my daily stress levels *2022-09-06* I’ve been using this app for a few months and it’s been instrumental in getting me through some really tough spots in my life where stress has been high. I love how passive the device is, I don’t have to remember to do a breathing exercise or stop what I’m doing, I just get pinged exactly when I need it. I could even be in a meeting and I can just do the breathing exercise passively since the device vibrates under my shirt. The app sometimes has some connectivity issues and is a little buggy, but I’ve been noticing it getting better, and it hasn’t gotten in the way of reducing my stress. **Developer response:** Hello, thank you for sharing your experience with us. We are glad to hear that our program helped you with your stressful times. We thrive to constantly improve and fix bugs that you have experienced and we're glad to hear that you noticed the changes. We're glad to be able to be part of your well-being journey. We look forward to helping more individuals! ### 5/5 — Mindful HRVB app *2022-09-02* I’m new to HRVB and I think the app is great for getting familiar with what increases and decreases my HRV. It’s simple, easy to use and is a great reminder to breathe throughout the day when your body moves more toward a flight/flight response. Been using for a couple months and my average HRV has increased since then and I have a much stronger mind body connection. It’s been a great tool for me. **Developer response:** Hi there, thank you for your kind words and for using our Lief program. Your feedback on how Lief is simple and easy to use is much appreciated and shared with the team as we take them seriously to improve our service better and help more individuals in the future! ### 5/5 — This device changed my life *2022-09-01* As a bio-hacker, I’ve used many wearables. I love bio-metrics data as a means to monitor my health. What set the Lief apart was not only the the accuracy + efficacy (due to the clinical nature of the wearable), but also the critical benefit of having bio-feedback assignments delivered in real-time. It’s a more pro-active way to manage stress, and in this day and age, who doesn’t need that? While I greatly appreciate understanding my metrics from moment to moment, I have experienced even more meaningful benefit in employing their down-time breathing assignments each day. It’s done wonders for my anxiety and overall general sense of wellness. **Developer response:** Hi there, thank you for your kind words and for using our Lief program. Your feedback on the benefits of using the Lief is much appreciated and shared with the team as we take them seriously to improve our service better and help more individuals in the future! ### 5/5 — Highly recommend *2022-08-29* I love Lief for tracking HRV data! Highly recommend for anyone looking for a self regulation tool **Developer response:** Hi there, thank you for your kind words and for using our Lief program. Your feedback is much appreciated and shared to the team as we take them seriously to improve our service better and help more individuals in the future! ### 5/5 — This is really really amazing *2022-05-26* I started wearing my Lief about 11 days ago and those were 11 of the least stressful days … like, ever. Ever. I’ve been following the body of work around heart rhythm variability for a long time - live in Northern California near the HQ of HeartMath, which developed the first HRV wearables. Lief takes this to a whole new level. Having something giving you real time feedback on your stress level and a way to manage that in the moment is just incredible. I have lived many years as a total stress monkey and now … I’m not! It’s like magic. **Developer response:** Hi SuneelR, thank you for your kind words and for using our Lief program. Your feedback is much appreciated and we take them seriously to improve our service better and help more individuals in the future! ### 5/5 — Super smart device for HRV *2022-03-23* Since becoming a Lief member, I’ve learned how to recognize my stress triggers and bring my body back to a state of calm. It’s hard to believe this little device can make such a difference, but it truly does! I recommend for anyone struggling with anxiety and looking to reduce stress. **Developer response:** Hi Nicole, Thank you for sharing your feedback on our program, your experience with us is giving us more reason to keep helping more people. We hope to help more individuals like you in the future! --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-25.*