HydrateAI vs Aurnia
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HydrateAI
This AI-powered app helps you optimize your hydration for improved energy, mood, and well-being. It provides personalized reminders, insightful analytics, and tailored goals to make tracking water intake and building healthy habits simple.
- AI-powered hydration tracking
- Personalized reminders
- Insightful analytics
- Tailored hydration goals
- Water intake tracking
- Habit building
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Supercharge your wellness with HydrateAI, the ultimate hydration tracker powered by advanced AI technology. Our app ensures you stay optimally hydrated, boosting your energy, improving your mood, and enhancing your overall well-being. With personalized reminders, insightful analytics, and tailored hydration goals, HydrateAI makes it easy to track your water intake and develop healthy habits. Experience the vitality, strength, and health that proper hydration can bring to your life. Download HydrateAI today and take the first step towards a healthier, happier you! Terms and conditions: https://www.geckostudios.ca/termsconditions
Aurnia
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Wake up understood. Aurnia reads last night's sleep and suggests what tonight should look like. AI sleep coach + smart alarm + recovery score + sleep stories — built for Apple Watch, works without one. No account needed: your sleep records stay on your iPhone. WHAT'S INCLUDED • Recovery Score (0–100) from your HRV, resting heart rate, sleep duration and efficiency, compared with your own 14-night baseline • A suggested bedtime for tonight • Sleep journal with mood and factor tags (caffeine, alcohol, late meal, exercise, screen time, stress, travel) • Factor correlations — see which habits cost you sleep • Sleep stories and ambient soundscapes • Apple Watch app AURNIA PRO • AI Morning Brief — one paragraph on what last night looked like and why. Requires an account and your permission to send a sleep summary to our AI provider, Anthropic. • Smart Alarm — a daily wake-up alert at the time you choose • The full sleep story library and CSV export PRIVACY Sleep analysis runs on your device. The cloud is used only for the AI Morning Brief, and only after you allow it. You can delete your data in the app at any time. Aurnia Pro is an auto-renewing monthly or annual subscription charged to your Apple ID. It renews unless cancelled at least 24 hours before the end of the period. Manage or cancel in Settings → [your name] → Subscriptions. Aurnia is a wellness companion. It does not diagnose, treat, or cure any sleep disorder. Privacy: https://ootssu.com/aurnia/privacy.html Terms: https://ootssu.com/aurnia/terms.html Support: https://ootssu.com/aurnia/support.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is ads: Aurnia at none against HydrateAI's shown. HydrateAI's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence, in-app purchases and device support 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. HydrateAI sells 1 in-app purchase, starting at $1.99 per month and Aurnia sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.
HydrateAI ships an update every 2 weeks, Aurnia weekly. The most recent releases landed on October 8, 2026 and October 28, 2026 respectively.
| Parameter | HydrateAI | Aurnia |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 weeks | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 26 MB | 20 MB |
| Age rating | 17+ | 4+ |
| Developer | Gecko Studios Ltd. | JIYULMOM |
In-app purchases
HydrateAI
- Hydrate+$1.991 Month
Aurnia
- Aurnia Pro Monthly$6.991 Month
- Aurnia Pro Annual7 Days trial$39.991 Year









