HydroDay vs Hearapy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HydroDay
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HydroDay : A Minimal, Private Hydration Tracker This is a simple yet precise hydration tracking app designed to help you understand your daily drinking habits No accounts, no cloud, no tracking — all data stays securely on your device Stay hydrated, build healthy habits, and see your progress across days, weeks, and months. - Beautiful & Effortless Tracking - Quick input for instant logging - Intuitive icons for different cup sizes Clean daily dashboard that updates automatically Weekly & Monthly Insights - Visual summaries that reveal your hydration patterns - Goal vs. actual tracking for each day - Tap into any date to view detailed logs Edit & Delete Anytime - Fix incorrect entries in one tap - Easily adjust past records Privacy You Can Trust - All data is stored only on your device - Works fully offline - Your hydration journey is yours alone
Hearapy
This app uses scientifically researched 100Hz vestibular stimulation via AirPods to prevent motion sickness. A single 60-second session synchronizes conflicting sensory signals, reducing nausea and restoring comfortable travel.
- 100Hz pure sine wave vestibular stimulation
- Optimized for AirPods Pro and Max
- 60-second focused sessions
- Intuitive neumorphic interface
- Taptic Engine haptic feedback
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60 seconds. No pills. No patches. Hearapy's 100Hz tone works through your AirPods to stop motion sickness before it starts. Hearapy delivers a scientifically-backed 100Hz pure sine wave through your AirPods to stimulate the otolith organs in your inner ear — calibrating your balance signals and relieving motion sickness before it takes hold. Based on advanced research in vestibular stimulation, a single 60-second session applied before or at the start of travel provides lasting relief HOW IT WORKS Motion sickness occurs when your eyes and inner ear send conflicting signals to your brain. Hearapy's 100Hz vestibular stimulation helps synchronize these signals, reducing the disorientation that causes nausea. FEATURES • Pure 100Hz sine wave generated in real-time — no pre-recorded audio files • Optimized for AirPods Pro and AirPods Max with Active Noise Cancellation • 60-second focused session with live countdown • Calm, neumorphic interface designed for users who already feel unwell • Taptic Engine micro-vibrations synchronized with the audio wave WHEN TO USE IT Put on your AirPods, open Hearapy, and run a session before you board — or at the first sign of discomfort. One minute is all it takes. SAFETY NOTICE Hearapy is not a medical device or treatment. Consult a doctor before use if you have a history of epilepsy, severe inner ear disorders, or active vertigo attacks. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://hearapy.carrd.co/#privacy
Screenshots
Verdict
The clearest difference is in-app purchases: HydroDay at none against Hearapy's 2. Hearapy's advantage is ads (none vs shown) and device support (3 vs 1). On price and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Hearapy sells 2 in-app purchases, starting at $1.99 per month. HydroDay asks for nothing beyond the download.
| Parameter | HydroDay | Hearapy |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | — | Weekly |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad, Apple Watch — better |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 37 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Geonung Cheong | Osman Tufekci |
In-app purchases
HydroDay
No in-app purchases
Hearapy
- Hearapy Monthly$1.991 Month
- Lifetime$7.99









