spf.today vs NerveQ

spf.today helps you build the sunscreen habit—without the nagging. Track applications, get smart reapply reminders, and protect your skin with effortless SPF logging. Log sunscreen in seconds Track directly from your Lock Screen or Apple Watch using Live Activities. No need to open the app. Smart reapply reminders Get notified when it’s time to reapply, based on your SPF level and timing. Subtle, silent, and always on time. See your progress Build streaks, view history, and stay consistent. It’s sunscreen tracking you’ll actually stick with. Made for real life Whether you’re at the beach, out for a walk, or just working by a window—spf.today fits into your day without getting in the way. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/view/daylight-privacy-policy

NerveQ is a personal sensation wellness self-check tool for awareness purposes only. It is not a medical device and does not provide medical diagnosis, treatment, or advice. Results are for personal reference — consult a healthcare professional for medical concerns. NerveQ helps you understand your sensory wellness patterns through science-based self-checks using Heart Rate Variability (HRV) analysis, vibration perception threshold (VPT) testing, and balance assessment. KEY FEATURES: - PPG-based HRV measurement using your phone's rear camera and flashlight - VPT (Vibration Perception Threshold) self-check via device haptics - Romberg balance assessment via gyroscope - Personalized sensory wellness score combining multiple data points - Progress tracking to monitor your wellness over time - Educational resources about nerve health and wellness HOW IT WORKS: 1. Place your fingertip over the rear camera with the flashlight on for HRV measurement 2. Complete the VPT self-check using device vibration patterns 3. Perform the balance assessment guided by on-screen instructions 4. Receive a combined sensory wellness score 5. Track your results over time to identify patterns SCIENCE-BASED APPROACH: - VPT: Vibration perception threshold via device haptics for sensory awareness - Romberg balance test: Gyroscope-based balance pattern measurement - HRV analysis: RMSSD method based on published research All measurements are processed entirely on your device. No health data is transmitted to external servers. This app is a personal wellness self-check tool for awareness purposes only. It is not a medical device and does not provide medical diagnosis, treatment, or advice. Results are for personal reference — consult a healthcare professional for medical concerns.