HydraIQ vs むくみ予報
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HydraIQ
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Track every glass and build a daily hydration habit. HydraIQ adapts your daily goal to your weight and activity, sends gentle reminders, and visualises your streak. Most hydration apps just tally glasses. HydraIQ predicts when your body is heading toward dehydration and nudges you before thirst kicks in. Powered by live weather, your Apple Watch heart-rate signals, and your daily patterns. • SMART DAILY TARGET — Recalculated live from your weight, temperature, humidity and activity. No static 2-litre rule. • PREDICTIVE ALERTS — HydraIQ spots the gap between when you drank last and what your body needs, and nudges you with a friendly notification a few minutes BEFORE you'd feel thirsty. • APPLE WATCH COMPLICATION — Watch face complication with your live hydration state (Well Hydrated / Drink Soon / Hydrate Now) and percent of daily target. Log a drink straight from your wrist. • CLEAN DAILY DASHBOARD — At a glance: your target, what's been logged, and how you're trending through the day. • WEATHER-AWARE GOALS — Hot day? Humid? HydraIQ raises your target automatically so you don't fall behind. • DRINK TYPES THAT MATTER — Water, sports drinks, and coffee are tracked separately. Coffee counts at 70% hydration because caffeine is mildly diuretic. • FULL HISTORY — See your hydration trend over days, weeks and months. HYDRAIQ PRO HydraIQ Pro unlocks the predictive brain: • Predictive hydration alerts that learn your habits • Apple Watch complication on all watch faces • Weather-aware dynamic goals • Unlimited history and trends • Skin-type aware recommendations Subscribe: Monthly £1.99 or Annual £14.99 (best value — saves over 37%). Payment is charged to your Apple ID on confirmation of purchase. Subscription auto-renews unless cancelled at least 24 hours before the end of the current period. Manage or cancel in Settings > Apple ID > Subscriptions. Terms of Use: https://maddisys.co.uk/terms Privacy Policy: https://maddisys.co.uk/privacy HydraIQ does not sell your data. Health data is stored on your device.
むくみ予報
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Tap what happened today. See tomorrow morning come into focus. Puffiness Forecast turns a few taps about your day into a plain-language outlook for how puffy tomorrow morning is likely to feel - shown the way a weather forecast is, not as a verdict. - Logging that ends in taps. A bowl of ramen is three taps: pick the dish, the amount, and how much broth you drank. No keyboard. Frequent items are one tap from Recents. - Words before numbers. Lower / Usual / Somewhat higher / Higher, with an honest range and a confidence level, plus at most three factors that explain it. - One tap in the morning. None / Slight / Strong / Very strong. No streaks, no failure states. - Tuned to you. After enough mornings, the app learns on-device which factors line up with your mornings. Nothing about that learning leaves this device. - Apple Watch and widgets. Raise your wrist for tomorrow's outlook, log the usual things in one tap, and offline entries arrive once you reconnect. - Stays on your device. No account. Health data is never used for advertising and never sold. Location is used only to fetch weather, and no precise location history is kept. --- This forecast is a reference estimate based on what you log. It does not measure body fluid or sodium and does not identify medical conditions. For sudden severe swelling, one-sided swelling, pain or redness, trouble breathing, or symptoms lasting several days, please contact a clinician rather than relying on the forecast.
Screenshots
Verdict
The clearest difference is ads: むくみ予報 at none against HydraIQ's shown. HydraIQ's advantage is update cadence (every 5 days vs every 5 weeks). On price, in-app purchases, device support 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. HydraIQ sells 2 in-app purchases, starting at $1.99 per month and むくみ予報 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
HydraIQ ships an update every 5 days, むくみ予報 every 5 weeks. The most recent releases landed on October 6, 2026 and October 11, 2026 respectively.
| Parameter | HydraIQ | むくみ予報 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days — better | Every 5 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 10 MB | 6 MB |
| Age rating | 12+ | 12+ |
| Developer | Maddisys Limited | kazunari aoki |
In-app purchases
HydraIQ
- HydraIQ Pro Monthly$1.991 Month
- HydraIQ Pro Annual7 Days trial$14.991 Year
むくみ予報
- Puffiness Forecast Pro$9.99









