Apps like iFORA O2

Here are some great alternatives to iFORA O2 by ForaCare :
EMAY Bluetooth Pulse Oximeter
EMAY Bluetooth Pulse Oximeter
★3.6
Garmin Sleep Advanced
Garmin Sleep Advanced
★3.6
Pulse Oximeter - Beat & Oxygen
Pulse Oximeter - Beat & Oxygen
★3.7
Bp Doctor Plus
Bp Doctor Plus
★4.5
Ultrahuman
Ultrahuman
★4.4
FITTR HART: Smart Ring
FITTR HART: Smart Ring
★3.5
Vitals Tracker – BP & Health
Vitals Tracker – BP & Health
★3.5
Heart Rate Analyzer
Heart Rate Analyzer
★4.0
Sleep Viatom O2Ring Advanced
Sleep Viatom O2Ring Advanced
★3.9
MIR SMART ONE
MIR SMART ONE
★3.8
Zl02d Smartwatch Guide App
Zl02d Smartwatch Guide App
★4.5
Titan Smart 2
Titan Smart 2
★3.7
Titan Smart World
Titan Smart World
★3.9
MIR SPIROBANK
MIR SPIROBANK
★3.5
BloodPressure DB – BP Tracker
BloodPressure DB – BP Tracker
★3.4
OHealth
OHealth
★4.1