hDrop App vs Onda Endurance

hDrop is the first wearable sweat sensor designed to extract data from your sweat during exercise. Independently validated research shows that hDrop is the world’s most accurate wearable sweat sensor, helping athletes understand how much fluid and sodium they lose while training. Whether you are preparing for a marathon, triathlon, cycling event, or intense training session, hydration strategy matters. Generic hydration advice does not account for the fact that every athlete sweats differently. hDrop helps you personalize your hydration based on real physiological data. Measure What You Lose in Sweat hDrop continuously monitors your sweat during exercise and provides insights that help you understand your body's hydration demands. Track key metrics including: • Sweat Loss – Estimate how much fluid you lose during training • Sweat Sodium Loss – Understand electrolyte loss to guide sodium intake • Sweat Rate Trends – Learn how your hydration needs change with intensity and environment Build Your Personal Hydration Strategy Use your sweat data to create a hydration plan tailored to your physiology. With the hDrop app you can: • Analyze sweat loss across workouts • Understand sodium losses during exercise • Compare sessions in different weather conditions • Improve hydration planning for races and long training sessions Designed for Endurance Athletes hDrop is built for athletes who depend on hydration precision: • Triathlon • Marathon and running • Cycling • Trail and ultra endurance sports • Heat training and high-intensity workouts Scientifically Validated Technology hDrop technology has been independently validated by university research, demonstrating high accuracy in estimating sweat loss and sodium loss during exercise. The system was developed with a focus on translating laboratory sweat testing into a wearable field solution for athletes. Unlock Advanced Features with hDrop Lab The optional hDrop Lab membership provides deeper analysis tools, advanced hydration insights, and personalized hydration guidance based on your sweat profile. Hydrate smarter. Perform better. DISCLAIMER: hDrop is not intended to diagnose any health condition. hDrop is not a medical device. Please do not take any critical decisions based on hDrop's current data. Optional Add-On Terms: hDrop Lab is available as an optional add-on auto-renewable subscription. Payment will be charged to your Apple ID account at confirmation of purchase. The optional subscription automatically renews unless canceled at least 24 hours before the end of the current period. You can manage and cancel your subscription in your App Store account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://hdroptech.com/privacy-policy

Onda is where your training goes after it happens. It receives rides, runs, swims, and every workout in between from the devices you already own, turns them into something beautiful, and gives you a feed of real people to share them with. NO RECORDING, NO FRICTION Onda doesn't ask you to press start. Connect once and your activities flow in automatically: • Garmin and Suunto — automatic sync, including your activity history • Apple Health — workouts from Apple Watch and other apps • Zwift and anything else that emails FIT files — via your personal Onda inbox address • Direct .FIT file import from the Files app or the share sheet EVERY ACTIVITY, BEAUTIFULLY TOLD • Maps treated like the hero of the story • Pace, power, heart rate, cadence, elevation, laps, and splits • Power curves and best efforts, with personal records tracked automatically • Training load — fitness, fatigue, and form, so you know when to push and when to rest SHARE CARDS WORTH POSTING Turn any activity into a poster-grade card and post it to Instagram Stories or anywhere else. Your effort deserves better than a screenshot. A FEED THAT RESPECTS YOU • Chronological, always — no algorithm deciding what you see • Every notification comes from a real human: kudos, comments, follows, and personal records • No challenges, badges, streaks, or engagement traps CLUBS Bring your crew. Clubs get their own page, feed, and configurable leaderboards. ATHLETE TOOLKIT Race time predictor, FTP calculator, pace tools, and more — the utilities endurance athletes actually use. FREE, WITH NOTHING TO UNLOCK No subscription, no paywall, no ads. Your data belongs to you — Onda never sells it. Onda is built for cyclists, runners, triathletes, and swimmers who train with a GPS watch or bike computer — athletes who want their training to look as good as it felt. Health data: Onda can read workouts from Apple Health and, if you choose, save imported workouts back to Apple Health. You control these permissions at all times.