# Caffeine Half Life vs Caffy

The clearest difference is update cadence: Caffeine Half Life at every 5 days against Caffy's every 2 weeks. Caffeine Half Life also leads on device support (3 vs 1). Caffy's advantage is iOS requirement (18.6 vs 26.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Caffeine Half Life sells 1 in-app purchase, starting at $1.99 per month and Caffy sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Caffeine Half Life ships an update every 5 days, Caffy every 2 weeks. The most recent releases landed on October 25, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Caffeine Half Life | Caffy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/caffy-caffeine-tracker/id6763036774/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 weeks |
| Monetization | — | Freemium |
| Size | 13 MB | 27 MB |
| Requires iOS | 26.0 | **18.6** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 12+ | 12+ |
| Developer | [Adrian Nowak](https://appshunter.io/developer/1888522412) | [Irfan Behic TIRPANCI](https://appshunter.io/developer/1895131748) |

## What reviewers say

### Caffeine Half Life

[App page](https://appshunter.io/ios/app/caffeine-half-life/id6761268609)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | per month |


### Caffy

[App page](https://appshunter.io/ios/app/caffy-caffeine-tracker/id6763036774)

Track your caffeine intake and understand its impact on your sleep and productivity. This app uses science-backed models to provide personalized insights into your caffeine levels and when you'll be ready for sleep.

**Highlights:** Real-time caffeine decay curve, Personalized sleep readiness score, Focus window for productivity peaks, AI weekly analysis of caffeine patterns, Caffeine detox programs, Live home screen widgets

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Caffy Premium | $2.99 | per 7 days |
| Caffy Premium | $6.99 | per month |
| Caffy Premium | $29.99 | per year |


## Frequently asked questions

### Is Caffeine Half Life free?

Caffeine Half Life is free to download, with in-app purchases available.

### Is Caffy free?

Caffy is free to download, with in-app purchases available.

### Do Caffeine Half Life or Caffy have ads?

Neither Caffeine Half Life nor Caffy shows ads.

### Which is updated more often, Caffeine Half Life or Caffy?

Caffeine Half Life ships an update every 5 days, and Caffy every 2 weeks. Most recently, Caffeine Half Life was updated on October 25, 2026 and Caffy on October 23, 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.*