Pulse Monitor: No Subs Apps

Pulse Monitor is a transparent, science-minded app for pulse, HRV, breathing, and recovery tracking using only your iPhone sensors.

Built for people who want useful physiology trends without hype:

• Free app
• No subscriptions
• No ads
• No account
• No health-data collection
• No cloud dependency for measurements

PULSE & HRV (camera PPG) From fingertip camera signal, Pulse Monitor estimates:

• Pulse (BPM)
• AVNN, CVNN
• RMSSD, SDNN, SDSD
• NN20, pNN20, pNN50
• TRP (irregularity index), SampEn, Shannon Entropy
• SD1/SD2 ratio, Poincare area
• HF, LF, VLF, Total Power, LF/HF
• Baevsky Stress Index

BREATHING (motion sensors) From phone motion on the abdomen, Pulse Monitor estimates:

• Respiratory rate
• Mean breath interval
• Breath-interval SD
• Breath RMSSD
• Breathing CV
• Breathing amplitude CV

GUIDED TESTS Pulse tests:

• Squat CRF Test (Ruffier-Dickson, Ruffier, HRR1, load reaction, recovery index, VO2max abs/rel)
• Active Stand Test (delta HR, stand ratio, stand slope)
• Deep Breathing 6/min Test (E:I ratio, I-E difference, RMSSD)

Breathing tests:

• RR Recovery Test (recovery time, delta RR)
• Paced Breathing 6/min Test (error to target, compliance, breathing quality)

BREATHING PROTOCOLS

• Guided breathing protocols with stage timers and safety information.
• Clean protocol names in the main list, with detailed purpose and safety notes inside each protocol screen.

QUALITY-FIRST MEASUREMENT LOGIC

• Strict contact and motion checks
• Early quality gate + continuous quality validation
• Automatic rejection of unreliable sessions (instead of misleading numbers)
• Clear localized error messages when signal quality is insufficient

TRACKING, HISTORY, SHARING

• Measurement history with tags
• Detailed report cards for pulse, breathing, and tests
• Shareable result cards
• Bilingual interface (English / Russian)

PRIVACY BY DESIGN Your measurements are processed on-device. Pulse Monitor does not require registration, does not include ads or tracking SDKs, and does not sell your data.

IMPORTANT Pulse Monitor is not a certified medical device and does not provide diagnosis or treatment decisions.

Pulse Monitor does NOT measure (and does not claim to measure):

• Blood pressure
• Blood glucose
• Medical-grade SpO2
• Lung volume
• ECG intervals (PR/QRS/QT)
• Cardiac output