Lief App

BrainBot, Inc. · iOS

Lief App

Explore the ad evidence, study the storefront, and build your next acquisition hypothesis.

Paid-ad activity not yet verified
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01 / Creative research

Turn the unknowns into a research plan.

01

Check the acquisition promise

Read the store headline, screenshots and description. What problem is the app promising to solve?

Study the storefront ↗
02

Look for ad evidence

Explore apps with direct store-link matches. Compare their hooks and formats without assuming the same approach works here.

Browse observed advertisers ↗
03

Separate demand from paid growth

Store rankings and revenue estimates describe market context. They do not establish ad spend, conversions or ROAS.

Review the market context ↗

02 / Storefront & product

Where the click lands.

Study the product story and store experience behind the acquisition funnel.

Screenshots

Lief App screenshot 1Lief App screenshot 2Lief App screenshot 3Lief App screenshot 4Lief App screenshot 5Lief App screenshot 6Lief App screenshot 7Lief App screenshot 8

03 / Market context

The business behind the app.

Keep revenue, downloads and store rankings separate from advertising performance.

How Much Does Lief App Make?

Monthly Revenue
$1.0K
Annualized estimate
$12.0K
Per Download
$1.00

Platform Performance

🍎iOS
Revenue
$1.0K
Downloads
1.0K

Rating Distribution

N/A
☆☆☆☆☆
0 reviews
No rating data available

Top Countries

🇺🇸 US🇩🇰 DK🇬🇧 GB
Reviews (3)▼
★★★★★Dued7119/6/2022
Really helps with my daily stress levels

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.

★★☆☆☆Hogsheads chagrined11/3/2021
App is glitchy

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.

★★★★★saintfrancisca8/22/2020
Simple, sustainable, powerful

I’ve been suffering from anxiety and stress for most of my adult life. When I first read about HRV biofeedback training I was a bit skeptical it could actually make a difference. However, I’d been noticing that I was always holding my breath at work and wanting to sigh. So I figured I’d give Lief a try to see if it could help me regulate my breathing better. Fast forward a few months and I have to say I’m pleasantly surprised. I am much more aware of my triggers for stress, and I find myself turning to my breath often as a way to calm down. Even when I’m not wearing my Lief, I do the breathing exercise to help take the edge off. I think the Lief is a good tool to have for a few months while you learn about your baseline HRV and learn how to do the biofeedback exercise, but can eventually do it on your own.

Version History (65)▼
14.48/3/2026
14.37/14/2026
14.27/5/2026
14.16/8/2026
13.15/2/2026
12.12/25/2026
11.12/24/2026
10.12/23/2026
9.28/25/2025
8.18/24/2025
Available In (115 Countries)▼
🇺🇸 United States🇦🇺 Australia🇨🇦 Canada🇨🇳 China🇫🇷 France🇩🇪 Germany🇬🇧 United Kingdom🇮🇹 Italy🇯🇵 Japan🇰🇷 South Korea🇷🇺 Russia🇩🇿 DZ🇦🇴 AO🇦🇷 Argentina🇦🇹 Austria🇦🇿 AZ🇧🇧 BB🇧🇾 BY🇧🇪 Belgium🇧🇲 BM🇧🇷 Brazil🇧🇬 Bulgaria🇨🇱 Chile🇨🇴 Colombia🇨🇷 CR🇭🇷 Croatia🇨🇿 Czech Republic🇩🇰 Denmark🇩🇴 DO🇪🇨 EC🇪🇬 Egypt🇸🇻 SV🇫🇮 Finland🇬🇭 GH🇬🇷 Greece🇬🇹 GT🇭🇰 Hong Kong🇭🇺 Hungary🇮🇳 India🇮🇩 Indonesia🇮🇪 Ireland🇮🇱 Israel🇰🇿 KZ🇰🇪 Kenya🇰🇼 KW🇱🇧 LB🇱🇹 Lithuania🇱🇺 LU🇲🇴 MO🇲🇬 MG🇲🇾 Malaysia🇲🇽 Mexico🇳🇱 Netherlands🇳🇿 New Zealand🇳🇬 Nigeria🇳🇴 Norway🇴🇲 OM🇵🇰 Pakistan🇵🇦 PA🇵🇪 Peru🇵🇭 Philippines🇵🇱 Poland🇵🇹 Portugal🇶🇦 QA🇷🇴 Romania🇸🇦 Saudi Arabia🇸🇬 Singapore🇸🇰 Slovakia🇸🇮 Slovenia🇿🇦 South Africa🇪🇸 Spain🇱🇰 LK🇸🇪 Sweden🇨🇭 Switzerland🇹🇼 Taiwan🇹🇭 Thailand🇹🇳 TN🇹🇷 Turkey🇺🇦 Ukraine🇦🇪 UAE🇺🇾 UY🇺🇿 UZ🇻🇪 VE🇻🇳 Vietnam🇧🇴 BO🇰🇭 KH🇪🇪 Estonia🇱🇻 Latvia🇳🇮 NI🇵🇾 PY🇦🇫 AF🇬🇪 GE🇮🇶 IQ🇱🇾 LY🇲🇦 MA🇲🇿 MZ🇲🇲 MM🇾🇪 YE🇧🇭 BH🇨🇾 CY🇲🇹 MT🇷🇸 RS🇧🇯 BJ🇧🇫 BF🇨🇲 CM🇨🇬 CG🇨🇮 CI🇯🇴 JO🇱🇦 LA🇲🇱 ML🇸🇳 SN🇹🇿 TZ🇺🇬 UG🇿🇲 ZM🇿🇼 ZW
Supported Languages (1)▼
English
App Details▼

Lief is a discreet, clinically-accurate smart-patch that measures your heart rate and heart rate variability. It trains you to control your body’s nat...

iOS App ID
1289075477
Content Rating
4+
Min OS
13.0
Size
79.5 MB
Publisher
BrainBot, Inc.