# Liver Buddy vs Prism

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.

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.

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.

## The numbers

| Metric | Liver Buddy | Prism |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (2 ratings)](https://appshunter.io/ios/app/liver-buddy-alcohol-tracker/id6749027968/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 11 days** |
| Monetization | Subscription | — |
| Size | 92 MB | 3 MB |
| Requires iOS | **16.4** | 26.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 17+ | 4+ |
| Developer | [Maxence DUHOUX](https://appshunter.io/developer/1613993908) | [剑炜 陈](https://appshunter.io/developer/1868267178) |

## What reviewers say

### Liver Buddy

[App page](https://appshunter.io/ios/app/liver-buddy-alcohol-tracker/id6749027968)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited (1 month) | $2.99 | per month |
| Unlimited (1 year) | $19.99 | per year |
| One time payment | $24.99 | one-time |


### Prism

[App page](https://appshunter.io/ios/app/prism-sunlight-tracker/id6758259341)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Prism Premium (Monthly) | $1.99 | per month |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*