Comparison

HydroLite vs Hydra

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

HydroLite

Features
Read full description

HydroLite is the simplest way to track your water. Open the app. Tap a preset. That's it. No accounts, no nagging, no bloat. Features • One-tap water logging — 8, 12, 16, 20 oz or 250/500/750 mL/1 L • Calm daily progress ring with instant visual feedback • Undo your last log with a single tap • Interval reminders with quiet-hours support • Electrolyte & drink-type tracking (premium) • Custom one-tap presets (premium) • 3-day history (free) or 30-day history + trend chart (premium) • Clean light and dark mode, readable on small phones Privacy-first • No account, no sign-in • No cloud sync; anonymous, opt-out product analytics only — never your hydration data • Works fully offline Pricing • Free forever: logging, built-in presets, interval reminders with quiet hours, 3-day history • Premium Monthly — $1.99/month (auto-renewing) with a 7-day free trial: custom presets, electrolyte & drink-type tracking, 30-day history and trend chart • Premium Yearly — $14.99/year (auto-renewing) with a 7-day free trial: the same premium features, billed annually • Premium Lifetime — $6.99 (one-time): the same premium features, paid once, kept forever Yearly and monthly both start with a 7-day free trial; lifetime unlocks everything with a single purchase. Subscription details Payment will be charged to your Apple ID at confirmation of purchase. Subscriptions auto-renew unless canceled at least 24 hours before the end of the current period; renewal is charged within 24 hours of the period end. Manage subscriptions in your Apple ID Account Settings. Any unused portion of a free trial is forfeited when you purchase a subscription before the trial ends. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://has-deploy.github.io/hydrolite/privacy-policy.html HydroLite helps you track water intake. Hydration targets are general defaults that you control. Not medical advice.

About

Hydra

Features
Read full description

Hydra – Water Tracker is a free iPhone app for tracking your water intake, with drink reminders that pause once you reach your goal. It's the calm, honest water tracker, made by an independent developer. Log a glass in one tap — in the app, from a widget, from Control Center, from a reminder or with Siri — and see at a glance whether you're on pace for today. WHY HYDRA • One-tap logging: +250 ml / +500 ml, or any of 12 drinks • Home Screen and Lock Screen widgets with buttons to log instantly • Control Center and Action button control • Log straight from a reminder without opening the app • Reminders only during your active hours — and they stop once you reach your goal • Personal daily goal from weight, activity and climate, or set your own • Pace-aware status: Hydra compares your intake with the time of day • Edit or delete any entry • Apple Health: every drink is saved as water • Siri in 24 languages: "Log water in Hydra", "How much have I drunk in Hydra" • Transparent science: hydration factors based on the Beverage Hydration Index, with sources in the app • ml or oz; text scales with your iPhone's text size FREE, FOR REAL Logging, all drinks, reminders, widgets, 7-day history and Apple Health are free. PREMIUM • Smart reminders that count from your last drink • 30- and 90-day history with insights (peak time, drink mix, alcohol) • Linen and Slate themes PRIVACY No account. No ads. No tracking. Your data stays on your iPhone. Hydra is a wellness tool, not medical advice. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

HydroLite4 screens
Hydra4 screens

Verdict

The call

The clearest difference is iOS requirement: HydroLite at 16.0 against Hydra's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. HydroLite sells 3 in-app purchases, starting at $1.99 per month and Hydra sells 4 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

HydroLite ships an update every 5 days, Hydra every 4 days. Both last shipped on October 24, 2026.

Scorecard1 real difference Ā· 5 level
HydroLite versus Hydra: the parameters behind the verdict, then further details
ParameterHydroLiteHydra
PriceFreeFree
Update frequencyEvery 5 daysEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad — betteriPhone
Requires iOS16.0 — better18.0
Further details — not scored
Size3 MB10 MB
Age rating4+4+
Developeranthony mcmurtreyFilippos Kagkiouzls

In-app purchases

3 purchases

HydroLite

Subscriptions2
  • HydroLite Premium7 Days trial$1.991 Month
  • HydroLite Premium7 Days trial$14.991 Year
One-time1
  • HydroLite Lifetime Unlock$6.99
4 purchases

Hydra

Subscriptions3
  • Premium Weekly$2.997 Days
  • Premium Monthly$4.991 Month
  • Premium Annual7 Days trial$29.991 Year
One-time1
  • Premium Lifetime$49.99

Questions

Is HydroLite free?
HydroLite is free to download, with in-app purchases available.
Is Hydra free?
Hydra is free to download, with in-app purchases available.
Do HydroLite or Hydra have ads?
Neither HydroLite nor Hydra shows ads.
Which is updated more often, HydroLite or Hydra?
HydroLite ships an update every 5 days, and Hydra every 4 days. Most recently, HydroLite was updated on October 24, 2026 and Hydra on October 24, 2026.

Other comparisons