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43 reviews
Content rating
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About this app

iFORA O2 App is a total solution help you analyze and improve sleep, stress, and mindbody related problems.
The App integrates with FORA Bluetooth Pulse Oximeter and Intelligent Cloud Analysis System to provide three main features: 1. Sleep SpO2 analysis, 2. HRV analysis, 3. Resonance Breath (HRV Biofeedback).

1. Sleep SpO2 analysis
1-1. records the whole night of SpO2 and heart rate readings with sampling rate of 1 sample per second.

1-2. provides analysis report with SpO2/heart rate trend chart and the following parameters related to sleep apnea:
(1) lowest SpO2, (2) highest SpO2, (3) average SpO2, (4) ODI3%, (5) ODI4%, (6) CT90%, (7) overall Sleep SpO2 classification ...etc.
The report (pdf format) could be sent to user registered email address
1-3. provide history Sleep SpO2 report for check

Sleep SpO2 analysis help test the severity of oxygen saturation deficiency. It could be used for not only risk screening but also for treatment improvement tracking (e.g. CPAP, breath exercise, pillow).

1-4. analysis and recommendation
personalized analysis and recommendation based on multi-night test results and questionnaire

1-5. sleep note
possible apnea improvement solutions in sleep note (e.g. CPAP, nasal breath, side sleep, pillow) - help user find suitable solution

2. HRV (Heart rate variability) analysis
2-1. provides heart rate variability analysis (Autonomic Nervous System Analysis) with 5 parameter:
- SDNN (overall Autonomic Nervous System index)
- LF (Sympathetic Nervous Combo index)
- HF (Parasympathetic Nervous index)
- LF/HF (Balance index)
- heart rate
2-2. provides classification of overall HRV score and individual suggested range for each parameter
2-3. provides knowledge of possible Causes, Risks and Notice for HRV scores outside suggested range
(e.g. sleep disorder, stress level, no inner balance...etc.)

3. Resonance Breath (HRV biofeedback)
3-1. provides visual Guidance for breathing exercise and biofeedback of user’s condition
3-2. supports 7 types of breathing exercise frequency: 4.5, 5, 5.5, 6, 6.5, 7, 7.5 BPM. User could scan and test the most suitable frequency for him to exercise
3-3. support 'Resonance' and 'Coherence' parameter to help user scan and test the most suitable breathing frequency for him
‘Coherence’: synchronization of user’s breathing with App guidance;
‘Resonance’: body resonance degree with exercise breath frequency

Sleep SpO2 and HRV Analysis help analyze the causes of sleep, stress and mindbody problems, and also help scan the risk for potential diseases. Resonance Breath help you reduce stress, achieve inner balance, and improve sleep quality and health.


iFORA O2 provide free basic function and three advanced function that need subscription.
feature summary link:

Subscription pricing and terms:
iFORA O2 offers an auto-renewing monthly subscription with the below pricing
$9.99/month for Sleep SpO2
$3.99/month for HRV
$1.99/month for Breathing (HRV Biofeedback).

Terms of service:
Privacy policy:


The iFORA O2 App needs to pair with the FORA Bluetooth Pulse Oximeter to work.
Product information for the oximeter can be accessed at the FORA Online Store at
Just search “SpO2” on the right side of the page.

FORA homepage: https://foracare.com
Updated on
Mar 9, 2023

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 and Health and fitness
Data is encrypted in transit
Data can’t be deleted
43 reviews
Christine Traxler
November 29, 2020
Mostly happy with it but I often have to uninstall and reinstall because the timer is off and slows dramatically. They need to fix this glitch. Updated: I have to uninstall and install nightly to get the timer to work. Contacted them three times and no response.
5 people found this review helpful
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A Google user
February 5, 2020
I bought this oximeter app bundle for my dad. He complained uncomfortable first, but found some tricks to wear the meter during sleep. The App is easy to use and helpful for him to care his sleep apnea. One attractive feature for me is the app allow me to remote check his result on my phone.
14 people found this review helpful
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February 3, 2020
Thank you for using our solution. We are sorry for the uncomfortableness complaint. We think doing sleep test with oximeter at home is more comfortable and convenient than doing test at sleep center. However, we understand our meter is not as comfortable as ring or wristband type oximeter. That’s a choice and tradeoff between accuracy and comfort.
A Google user
February 5, 2020
The bundle price of spo2 meter and app is a little pricy. I wouldn't buy it if it wasn't recommended by my doctor. After one week experience, I think wearing meter in sleep is a little uncomfortable; however, the analysis reports and sleep notes in the app are professional and help my family test and improve sleep apnea. Worthy!
15 people found this review helpful
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February 5, 2020
Our product is at similar price as other oximeter products focusing on sleep analysis. Besides sleep analysis, we also support HRV and Breath extra features. We are sorry for the uncomfortableness. We understand our meter isn't as comfortable as ring or wristband type. Since SpO2 measured from finger tip is more accurate, we sacrifice some comfort.

What's new

Bug fixes and performance improvements