Comparison

Liver Buddy vs Prism

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

Head to head
About

Liver Buddy

This app helps you build healthier drinking habits through gamified tracking. Visualize your alcohol consumption's impact on a virtual liver avatar, earn achievements, and receive weekly summaries to stay motivated and accountable.

Highlights
  • Gamified liver avatar visualization
  • Effortless one-tap drink logging
  • Engaging calendar view for patterns
  • Motivational feedback and achievements
  • Weekly progress summaries
  • Two calculation modes (simple/advanced)
Features
Read full description

LiverBuddy is the gamified alcohol tracking app designed for people who want to build healthier drinking habits without boring spreadsheets or guilt-driven trackers. Instead of numbers alone, you’ll meet your very own Liver Buddy — an avatar that reacts to your drinking patterns. As you log drinks, your liver changes mood and appearance, helping you visualize the impact of your choices in real time. Why choose LiverBuddy? Effortless logging: One-tap drink tracking button. Engaging calendar view: See streaks, dry days, and patterns over weeks or months. Motivational feedback: Your liver evolves through funny, relatable states — from perfectly healthy to hungover mess. Weekly summaries: Compare your progress with your personal goals and get insights to stay on track. Achievements & streaks: Celebrate your wins, from your first alcohol-free weekend to a full dry month. Two calculation modes, your choice. LiverBuddy lets you choose how your consumption is analyzed: - Simple mode gives you a quick, easy estimate based on the average of your recent drinks. - Advanced mode uses accurate calculations based on real data and scientific references. Sources and explanations are available directly inside the app, so you always know how results are built. Whether you’re aiming to cut back, try a dry month, or simply understand your drinking better, LiverBuddy keeps you motivated, accountable, and entertained. It’s not about judgment. It’s about awareness — and making healthier habits stick. --- I created LiverBuddy to be more conscious of my liver state after having some hard times drinking. --- This app is just for fun and should never replace medical advices. --- *All features described above require a subscription* Terms of Service: https://www.getliverbuddy.app/terms Privacy Policy: https://www.getliverbuddy.app/privacy

About

Prism

Features
Read full description

Prism is an elegant utility that transforms your daily sunlight exposure into a journey of discovery. By syncing seamlessly with your Apple Watch, Prism helps you balance your light intake and well-being effortlessly. Key Features 1 Seamless Apple Watch Integration. Automatically syncs Time in Daylight using Apple Watch ambient light sensors for a hands-free tracking experience. 2 Dynamic iPhone Widgets. Stay connected with beautiful Home Screen and Lock Screen widgets that show your progress at a glance. 3 Spirit Evolution. Your sunlight data nourishes unique Spirits. Unlock various visual forms as they evolve based on your daily activity. 4 Environmental Insights. View real-time local UV Index and sunset data to plan your outdoor day safely. 5 Secure HealthKit Sync. Prism integrates deeply with the Apple Health app to store and visualize your light exposure data securely. Disclaimer. All data is for informational purposes only. Please consult a professional before making health decisions. information about the auto-renewable nature of the Premium Subscription: Subscription period: 1 month. Price: $1.99 per month (or local equivalent). Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. Terms of Use (EULA): [https://superficial-restaurant-956.notion.site/Privacy-Policy-2f3f52245d5580b1ae9ac299a0408cff?source=copy_link]. Privacy Policy: [https://superficial-restaurant-956.notion.site/Terms-of-Use-EULA-2f3f52245d558073aa26f42eb6149f80?source=copy_link].

Screenshots

Liver Buddy4 screens
Prism4 screens

Verdict

The call

The clearest difference is iOS requirement: Liver Buddy at 16.4 against Prism's 26.0. On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Liver Buddy sells 3 in-app purchases, starting at $2.99 per month and Prism sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Liver Buddy ships an update every 2 weeks, Prism every 11 days. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

Scorecard1 real difference · 8 level
Liver Buddy versus Prism: the parameters behind the verdict, then further details
ParameterLiver BuddyPrism
PriceFreeFree
Rating2.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 2 weeksEvery 11 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationSubscription—
DevicesiPhone, iPadiPhone, iPad, Apple Watch — better
Requires iOS16.4 — better26.0
Further details — not scored
Size92 MB3 MB
Age rating17+4+
DeveloperMaxence DUHOUX剑炜 陈

In-app purchases

3 purchases

Liver Buddy

Subscriptions2
  • Unlimited (1 month)3 Days trial$2.991 Month
  • Unlimited (1 year)7 Days trial$19.991 Year
One-time1
  • One time payment$24.99
1 purchases

Prism

Subscriptions1
  • Prism Premium (Monthly)1 Month trial$1.991 Month

Questions

Is Liver Buddy free?
Liver Buddy is free to download, with in-app purchases available.
Is Prism free?
Prism is free to download, with in-app purchases available.
Do Liver Buddy or Prism have ads?
Neither Liver Buddy nor Prism shows ads.
Which is updated more often, Liver Buddy or Prism?
Liver Buddy ships an update every 2 weeks, and Prism every 11 days. Most recently, Liver Buddy was updated on October 30, 2026 and Prism on October 28, 2026.

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