# BULO

> Smart breathing training assistant for lung health measurement and exercise. (iPhone/iPad app by BREATHINGS Co., Ltd..)

- Source: https://appshunter.io/ios/app/bulo/id1509793638 (this page in markdown: same URL + `.md`)
- Developer: [BREATHINGS Co., Ltd.](https://appshunter.io/developer/1509793637)
- Category: Health & Fitness, Lifestyle
- Price: Free
- Rating: 2.00/5 from 5 App Store ratings · 7 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 55 MB
- Languages: English, Korean
- Released: 2020-09-23
- Data updated: 2026-07-03
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/bulo/id1509793638/reviews.md

## What is BULO?

Smart Breathing Training Assistant!

Measure & Exercise for your lungs

## Key features

- Breathing exercise guidance
- Lung measurement
- Respiratory training
- Health tracking

## Recent user reviews (7 of 7)

All indexed reviews: https://appshunter.io/ios/app/bulo/id1509793638/reviews.md

### 2/5 — So close

*2022-03-25, version 1.5.9*

So close to being great. App is buggy and, more importantly, doesn’t connect to save your data to Apple Health. I’d pay so much for accurate digital respiratory testing that connects to apple health.

### 5/5 — 오늘 처음 받아서 쓰고있는데 bulo v2앱도 있네요

*2022-01-24, version 1.5.9*

V2를 쓰면 되는건가용??

### 5/5 — 잘 사용하고 있습니다^^

*2021-12-23, version 1.5.5*

폐근력 운동용으로 잘 사용하고 있습니다!
다만 운동 횟수 측정에 오류가 있는 듯합니다.
연습을 20번 밖에 안했는데 갑자기 몇 백번이 올라가있는 상황이 자주 발생합니다. 그래서 실제 훈련횟수와 측정된 횟수의 차이가 커서 약간 불편합니 ㅠㅠ 꼭 수정 부탁드립니다! 감사합니다~!

### 2/5 — Buggy

*2021-10-12, version 1.4.17*

Device is great, but app needs more work. Can’t easily see graphs, no idea what a good portion of the data means. App crashes every time I try to view my history. I’ve deleted and reinstalled and still have the same issue.

### 4/5 — Not Perfect but Functional

*2021-02-27, version 1.4.9*

No Apple ID issue from my end (as one reviewer reported). All the exercises are easy to follow. My only complaint is the absence of long-term programs that track results. Otherwise, great.

### 1/5 — Unable to get it to work

*2020-10-09, version 1.0.1*

Can not use Apple to sign on and had to use email. What are they doing with the info? Need better explanation and opt out. Also fix the Apple sign on. 
Lastly, it does not recognize the device on iPhone 7s. Please fix as it is useless right now.

### 1/5 — No Sign in With Apple

*2020-10-05, version 1.0.1*

Google and Facebook work, but Apple, while provided as an option, doesn’t work. This app collects potentially protected health information, so I want a strong privacy option. 

Please fix and I will gladly change my review.

## Frequently asked questions about BULO

### What is BULO?

BULO is a smart breathing training assistant designed to help users measure and exercise for their lungs. It provides guided breathing exercises to improve respiratory health.

### Is BULO free to download?

Yes, BULO is available for free on the App Store. There are no upfront costs to download and begin using its core features.

### What devices does BULO support?

BULO is compatible with iPhone and iPod devices. It is designed for iOS users looking to enhance their lung function.

### How often is BULO updated?

The latest version of BULO is 1.5.9, released on December 29, 2021. Updates typically focus on improving performance and adding new features.

### What is the age rating for BULO?

BULO has an age rating of 4+, making it suitable for a wide range of users. This indicates it contains no mature content.

### What are the main benefits of using BULO?

BULO helps users improve their lung health through guided breathing exercises and measurement tools. It aims to enhance respiratory function and overall wellness.

### Does BULO have ads?

No, BULO does not contain advertisements. As a free application, it provides an ad-free experience for its users.

### What is the user rating for BULO?

BULO has a current rating of 2.0 stars based on 5 ratings. This suggests that user satisfaction may be mixed.

## Version history (last 5 releases)

### 1.5.9 — 2021-12-29

• Fixed duplicate saving of exercise results.

### 1.5.5 — 2021-12-15

• Fixed the bug that the level of battery is not visible

### 1.5.1 — 2021-12-09

• Fixed the connection problem.

### 1.4.20 — 2021-10-22

. Fixed the bug that the history screen was not working.

### 1.4.17 — 2021-07-19

• Bug fixes

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## More apps by BREATHINGS Co., Ltd.

- [BULO 2.0](https://appshunter.io/ios/app/bulo-20/id1603428779)

All apps by BREATHINGS Co., Ltd.: https://appshunter.io/developer/1509793637

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*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 2026-07-03.*