1. Home
  2. 💪 Health & Fitness
  3. iFORA O2
iFORA O2

iFORA O2

Sleep SpO2 HRV Breathe Balance

18 ratings
15 reviews
💪 Health & Fitness
Free
In-App Purchases

Details

  • Released
  • Updated
  • April 7, 2019
  • May 21, 2026

Features

Developer

Harry Sung
✨Promote your app ✨
iFORA O2 screenshot #1 for iPhone
iFORA O2 screenshot #2 for iPhone
iFORA O2 screenshot #3 for iPhone
iFORA O2 screenshot #4 for iPhone
iFORA O2 screenshot #5 for iPhone
🧾$1.99 - $9.99
In-App Purchase↘︎
⭐15
Reviews↘︎
📝3+ tags
Tags↘︎
🔄6+ apps
Alternatives↘︎
❓8 answered
FAQ↘︎
📦~ in 2 weeks
Updates frequency↘︎
🖼️Get Icon
Icons↘︎

About

Analyze sleep quality, heart rate variability, and practice guided breathing exercises. Get personalized recommendations and track your progress over time to improve sleep apnea and mind-body balance.

✓Sleep SpO2 and heart rate tracking
✓Sleep apnea risk screening
✓Heart rate variability (HRV) analysis
✓Guided breathing exercises
✓HRV biofeedback
✓Personalized recommendations
✓Exportable PDF reports
Show original description

What's New in iFORA O2

3.3.5

May 21, 2026

improve user experience

Subscription plans

HRV Monthly Membership

Unlimited HRV Analysis within 1 Month

$3.991 Month
How to cancel iFORA O2 subscription ⁉️
4

In-App Purchases

$2.99

1 License

1 license of whole night sleep SpO2 report

User reviews

Most RecentHighest RatedLowest Rated

Extra bonus for oximeter

Bought the app bundled oximeter for Covid-19 recommended by NY magazine. Although the meter+app bundle price is higher than typical pulse oximeter, the sleep & hrv features in the app didn’t make me regret
Bell1965Bell1965

Useful for Sleep apnea tracking

I found this app by recommendation in New York Magazine. I Originally only wanted to buy a oximeter for COVID-19, and surprised that app+oximeter could also test and monitor sleep apnea. Worthy!
Appmarket0531Appmarket0531

Worst design in connectivity

No Proper information .never shows search and connect Bluetooth option.
Time waste
PotRagPotRag

Response from developer

Hello. When the user register and start use the iFORA O2 app first time, the app will show guidance how to pair and connect bluetooth and jump to bluetooth pairing page directly. We are not sure your meaning of no proper information. If you still have bluetooth problem, we are happy to help you resolve it. You could contact the service email in the app

высокий пульс

Пульс выше 100 не отображается в sleep record.
Anatol61Anatol61

Domain problem still active

Upon trying to set up account (required to use app) it says iCloud.com is not a valid domain. Disappointed. Otherwise looked like a good app.
LF1775LF1775

Response from developer

Hi There were hundreds of users used icloud.com to register and use iFORA O2 app successfully in the past few months. We think there might be other issues when you typed register email. One of the common issue is user accidentally type "icloud.con" rather than "icloud.com". If you are still interested in iFORA O2 and having problems for registration, you could contact ifora_o2@foracare.com, we will be more than happy to help you resolve the issues.

See 10 more reviews

FAQ

What is iFORA O2 used for?

iFORA O2 is a health and fitness app designed to analyze sleep quality, heart rate variability (HRV), and provide guided breathing exercises. It helps users understand and improve issues related to sleep apnea and mind-body balance.

Does iFORA O2 have ads?

No, iFORA O2 does not contain advertisements. The app offers basic functions for free and provides advanced features through optional subscriptions.

What are the subscription costs for iFORA O2?

iFORA O2 offers three monthly subscription plans: $1.99/month for Breathing (HRV Biofeedback), $3.99/month for HRV analysis, and $9.99/month for Sleep SpO2 analysis.

How accurate is iFORA O2's sleep SpO2 analysis?

The app records SpO2 and heart rate readings at a sampling rate of 1 sample per second throughout the night. It provides detailed analysis reports including lowest, highest, and average SpO2, along with parameters like ODI3%, ODI4%, and CT90% to assess sleep apnea severity.

Can I share my iFORA O2 reports with my doctor?

Yes, iFORA O2 can generate analysis reports in PDF format, which can be sent to your registered email address. This allows for easy sharing of your sleep and HRV data.

What breathing exercises are available in iFORA O2?

iFORA O2 supports 7 types of breathing exercise frequencies, ranging from 4.5 to 7.5 BPM. It provides visual guidance and biofeedback to help users find the most suitable frequency for their practice.

What devices is iFORA O2 compatible with?

iFORA O2 is compatible with iPhones and iPods. It integrates with FORA Bluetooth Pulse Oximeters for data collection.

How often is iFORA O2 updated?

The latest version of iFORA O2 is 3.3.4, and it was last updated on March 23, 2026. This indicates a relatively recent update, suggesting ongoing development and support.