SelfAssay vs Bike Dynamics

SelfAssay is a research workspace for people who self-experiment with supplements, peptides, and nootropics. Look up the evidence, then find out with your own data whether your stack is actually working for you. IMPORTANT SelfAssay is decision support for your own research. It is not medical advice and does not diagnose, treat, cure, or prevent any disease. It does not sell, source, or recommend any compound, and it does not encourage the acquisition or use of any substance, including prescription or research compounds. Always consult a qualified clinician and follow the laws where you live. LOOK UP ANY COMPOUND Search a growing index of 500+ compounds. Each dossier shows an effectiveness grade by purpose (sleep, focus, recovery, fat loss, and more) and a separate safety grade, both computed from thousands of classified first-hand community reports. See the most-reported effects and side-effects, cited studies and clinical trials, and clinical biomarker directions. When there is not enough first-hand data yet, you see a dash. We never guess. TRACK YOUR OWN STACK Log the compounds you take with dose and schedule, run daily check-ins for energy, focus, mood, and sleep, and set up simple n-of-1 experiments. Connect Apple Health to layer your sleep, HRV, and resting heart rate onto the days you took a compound versus the days you did not. The correlation is computed entirely on your device. MORE TOOLS - Companion: an AI assistant for compound questions, grounded in the dossier data so it refuses rather than fabricates. - Pre-Flight: surfaces interaction and safety considerations reported in the community and the literature for a planned stack, as information to review with a qualified clinician. - Decoder: organizes the values from your own lab report for your reference and lines them up against your stack. It does not diagnose or interpret your results. - Protocols: save and revisit structured protocols. PRIVATE BY DESIGN Your vault is encrypted at rest. Apple Health data stays on your device and is never sent to our servers. There is no third-party analytics and no tracking. Export or permanently delete your account and data anytime from the app. FREE TO USE Core research and tracking are free to use. Companion, Pre-Flight, and Decoder have free limits, and advanced use is part of SelfAssay Pro. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://selfassay.com/privacy Support: hi@selfassay.com

Bike Dynamics turns your Apple Watch into a sensor for mountain biking. Mount it securely to your handlebar, start a ride and turn raw motion, GPS and bike data into a detailed picture of what happened on the trail. Track jumps, corners, speed changes, control moments and repeated trail sections. Replay your ride on a synchronized map and timeline, compare runs and build a personal performance archive over time. RIDE ANALYSIS • Replay your full ride with map, speed and event timeline • Detect jumps, corners and control moments • Track airtime, jump distance and takeoff speed • Review speed changes and slowdown zones • See ride summaries and standout moments TRAIL INTELLIGENCE Bike Dynamics can recognize repeated trail sections across your rides. Compare matched runs, see your fastest time and understand how consistently the same features were detected. RECORDS Build a personal archive across your rides, including: • Jump distance • Airtime • Takeoff speed • Drop and trajectory metrics • Backwheel and control metrics • Ride and trail performance APPLE WATCH RECORDING For the highest recording quality, mount your Apple Watch rigidly to the handlebar. Bike Dynamics uses high-frequency motion data together with GPS and, when available, compatible bike telemetry. Supported setups include: • Apple Watch + bike telemetry • Apple Watch only • iPhone-only recording with reduced precision Compatible bike data depends on the hardware and available Bluetooth services. AI COACH Discuss a ride directly with Coach. Bike Dynamics can use your ride data as context to help you reflect on technique, confidence, consistency and possible next steps. Coach uses supported Apple Intelligence models on compatible devices. Your rides remain the basis of the conversation. HONEST DATA Bike Dynamics distinguishes between measured, calculated and estimated values. Metrics are only shown when the available sensor data supports them. EXPORT You can directly export your rides to strava. Only two clicks required. Bike Dynamics is built for riders who want more than a GPS track, from downhill and enduro sessions to jump lines, repeated trails and everyday progression.