Comparison

Glug vs NutriScience AI

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

Head to head
About

Glug

This app uses a virtual pet fish to motivate you to drink water. Your fish's survival depends on you meeting your daily hydration goals, with consequences for missing them. Unlock decorations and expand your fish's world as you stay hydrated.

Highlights
  • Virtual pet fish survival mechanic
  • Personalized daily water goals
  • Log water intake to fill tank
  • Unlockable tank decorations
  • Push notifications with consequences
  • Widgets for tracking
Features
Read full description

Meet your fish. Your fish needs you to drink water. Glug is a hydration tracker with a virtual fish that lives or dies based on how much you drink. When you hit your water goal, the tank fills and your fish thrives — happy, glowing, swimming laps. Miss a day? Watch them gasp. Miss two? They're belly-up. Three? Skeleton. This isn't a step counter. It's a consequence. Here's how it works: • Set your goal — Glug calculates a personalized daily target from your weight, age, activity level, climate, and what else you drink. • Drink water, fill the tank — log each drink and watch the water level rise. Every oz counts. Your fish is watching. • Unlock their world — keep your streak alive to unlock decorations: rocks, plants, a castle, a treasure chest, a sunken ship, and a companion fish. The more you drink, the richer the tank. Your fish has six health states: thriving, happy, worried, gasping, belly-up, and skeleton. The push notifications don't pull punches. Expect: "YOUR FISH IS GASPING", "POV: you killed [name]", and "fish is currently flopping. log something." You set their name. That makes it worse. Glug Pro unlocks the app — the tank, the fish, decorations, widgets, and every future update. $4.99/month · $19.99/year with a 7-day free trial · $29.99 lifetime, one time. Download Glug. Your fish is counting on you. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://glug-privacy.pages.dev

About

NutriScience AI

Features
Read full description

Discover how your body responds to food, exercise, sleep, and stress with NutriScience-AI — a complete metabolic health platform powered by intelligent insights and personalized coaching. Track your habits, understand your body, and make smarter health decisions with real-time data and AI-driven recommendations. Key Features: - Track nutrition, activity, sleep, and stress - AI-powered insights - Personalised recommendations - Clean and intuitive UI Subscription Details: - Weekly Plan: $0.99/week - Monthly Plan: $2.99/month - Yearly Plan: $29.99/year Payment will be charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless cancelled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage or cancel your subscription anytime in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Glug4 screens
NutriScience AI4 screens

Verdict

The call

The clearest difference is update cadence: NutriScience AI at every 3 days against Glug's every 6 weeks. On price, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Glug sells 3 in-app purchases, starting at $4.99 per month and NutriScience AI sells 3 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Glug ships an update every 6 weeks, NutriScience AI every 3 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard1 real difference · 9 level
Glug versus NutriScience AI: the parameters behind the verdict, then further details
ParameterGlugNutriScience AI
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 6 weeksEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhoneiPhone
Requires iOS17.0 — better17.6
Further details — not scored
Size22 MB20 MB
Age rating12+17+
DeveloperTHOMAS JOHN GIRGASHAditya Rai

In-app purchases

3 purchases

Glug

Subscriptions2
  • Glug Pro$4.991 Month
  • Glug Pro7 Days trial$19.991 Year
One-time1
  • Glug Pro - Lifetime$29.99
3 purchases

NutriScience AI

Subscriptions3
  • NutriScience AI Weekly$0.997 Days
  • NutriScience AI Monthly$2.991 Month
  • NutriScience AI Annual$29.991 Year

Questions

Is Glug free?
Glug is free to download, with in-app purchases available.
Is NutriScience AI free?
NutriScience AI is free to download, with in-app purchases available.
Do Glug or NutriScience AI have ads?
Neither Glug nor NutriScience AI shows ads.
Which is updated more often, Glug or NutriScience AI?
Glug ships an update every 6 weeks, and NutriScience AI every 3 days. Most recently, Glug was updated on October 25, 2026 and NutriScience AI on October 24, 2026.

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