Hydropal vs Apex Trace
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hydropal
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Stay hydrated without the guesswork. Hydropal is your personal hydration assistant that adapts to your lifestyle and keeps you on track. If you're not tracking your hydration, it's impossible to know if you're drinking enough. And most tracking apps aren't much better: they make you guess how much you've had and give you the same goal whether you hit the gym, had a few beers, or spent the day in the sun. Hydropal is different. Instead of making you estimate, it does all the thinking for you. It calculates your intake based on your real containers, adjusts your goal based on what you do every day, and sends you timely reminders only when you're falling behind. It's hydration tracking that finally makes sense. KEY FEATURES • Adaptive daily goals • Smart reminders • Container-based tracking • Huge catalog of presets • Custom drinks and containers • Personal units • Motivating streaks • Apple Health integration • Powerful even without Pro ADAPTIVE DAILY GOALS Your hydration needs aren't the same every day, so your goal shouldn't be either. Hydropal calculates a personalized target based on your body, and adjusts it throughout the day based on what you're actually doing. • Activity tracking: Your goal increases based on calories burned, pulled directly from Apple Health, working seamlessly with your iPhone and Apple Watch. • Alcohol tracking: A hangover is mostly dehydration. Alcohol draws water out of your body, and it's easy to forget to replenish it. Hydropal adjusts your daily goal whenever you drink alcohol, so you can thank yourself tomorrow! • Caffeine tracking: Caffeine can displace water in your body. Hydropal estimates your caffeine tolerance and calculates how much more water you need to balance it out. • Climate and time outdoors: Hydropal adjusts your goal based on temperature and how much time you spend outside. SMART REMINDERS Most hydration apps remind you on a fixed schedule, whether you need it or not. Hydropal is smarter: it only reminds you when you're actually falling behind. • Daily hydration curve: Hydropal maps out your ideal hydration throughout the day based on your sleep schedule. This ensures you're drinking steadily and won't have too much water in your system before bed. • Fully customizable: Choose how many and which types of reminders you want to receive. Hydropal adapts to how much (or how little) you want to be reminded. CONTAINER-BASED TRACKING Stop estimating how much you drank. Hydropal keeps track of your real-world containers, including mugs, glasses and your personal bottle. Match the liquid level on screen to what's in your container, and Hydropal calculates exactly how much you drank based on the shape and volume. Hydropal remembers each container’s fill level throughout the day, so you can switch between them freely without losing track. With over 40+ containers and 80+ drinks, plus the ability to create your own, you'll always find your glass half-full. HYDROPAL PRO Hydropal is powerful out of the box: track unlimited drinks and containers, connect to Apple Health for adaptive goals, receive smart reminders, and even edit yesterday's entries in case you forgot to log something. Hydropal Pro unlocks deeper customization and total control: • Create your own custom drinks and containers. • Track casual drinks with personal units like sips and gulps (perfect for drinking from the tap). • Sync water, caffeine, and alcohol data with Apple Health for a complete picture of your wellness. Download Hydropal to start your journey toward better health and consistent hydration today.
Apex Trace
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Your Fitbit data, beautifully visualized — and entirely on your phone. Apex Trace turns the health data you already track into a dark, animated dashboard worth opening every morning. It reads your data through the Google Health API and renders it as ring gauges, real hypnograms, activity heatmaps, and long-term trends. No flat charts. No monthly bill. PRIVATE BY DESIGN — NOT BY PROMISE Most health apps ask you to trust their servers. Apex Trace doesn't have any. • No backend. Your health data never leaves your device — there's nowhere for it to go. • No account, no tracking, no ads. Nothing to sign up for, nothing following you around. • Limited Use. Apex Trace's use of Google data follows the Google API Services User Data Policy, including the Limited Use requirements: your data powers only the features you see — never advertising, never sold, never used to train AI. • Optional crash reports are off by default, and never contain health data. Disconnect anytime and Apex Trace revokes its access and wipes every cached byte from your device. WHAT YOU GET • Today — your whole day at a glance, with animated ring gauges and an at-a-glance readiness estimate computed from your own data. • Sleep — a real hypnogram showing stages, timing, and how last night compares to your baseline. Finally readable. • Fitness — activity heatmaps and heart-rate zones that show effort and consistency over time, not just a single number. • Trends — long-term patterns across your metrics, so you can spot what's actually changing week over week and month over month. PAY ONCE. $6.99. No subscription. No in-app purchases. No ads. Buy it, own it. Get premium-style daily estimates without the premium-style monthly bill. TRY IT BEFORE YOU CONNECT Apex Trace ships with a full sample mode, so you can explore the entire dashboard with example data before you buy or connect anything. WHAT YOU'LL NEED (companion app) Apex Trace reads your data through the Google Health API, so it needs: • The Google Health app installed, and • A connected account syncing into it (a Fitbit account is the most common source). Apex Trace does not connect to Fitbit directly, and there's no account to create with us. A NOTE ON THE NUMBERS Apex Trace's readiness, sleep, and cardio-load figures are its own estimates, computed on your device to help you spot patterns. They are not medical advice, and not any other product's official scores. Fitbit and Google Health are trademarks of Google LLC. Apex Trace is an independent app and is not affiliated with, endorsed by, or sponsored by Google LLC.
Screenshots
Verdict
The clearest difference is update cadence: Hydropal at every 3 days against Apex Trace's every 9 days. Apex Trace's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 18.2). On price, ads and in-app purchases 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. Hydropal sells 2 in-app purchases, starting at $2.99 per month and Apex Trace sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
Hydropal ships an update every 3 days, Apex Trace every 9 days. The most recent releases landed on October 24, 2026 and October 14, 2026 respectively.
| Parameter | Hydropal | Apex Trace |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 days — better | Every 9 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 18.2 | 14.0 — better |
| Further details — not scored | ||
| Size | 32 MB | 27 MB |
| Age rating | 4+ | 17+ |
| Developer | FRANCESCO COMPAGNONI | Matteo Ferraroni |
In-app purchases
Hydropal
- Monthly3 Days trial$2.991 Month
- Annual3 Days trial$24.991 Year
Apex Trace
- Supporter$2.991 Month
- Supporter+$9.991 Month
- Supporter Pro$19.991 Month
- Unlock the sync with Google Health$6.99









