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