# S vs Caffeine Tracker

The clearest difference is in-app purchases: S at none against Caffeine Tracker's 3. S also leads on iOS requirement (9.0 vs 18.2). Caffeine Tracker's advantage is device support. On price there is nothing between them.

Both are free to download. Caffeine Tracker sells 3 in-app purchases, starting at $2.99 per 7 days. S asks for nothing beyond the download.

## The numbers

| Metric | S | Caffeine Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/caffeine-tracker-moonlatte/id6751758649/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 24 MB | 20 MB |
| Requires iOS | **9.0** | 18.2 |
| Devices | — | **iPhone, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [传凤 张](https://appshunter.io/developer/1504033117) | [Pawel Karniej](https://appshunter.io/developer/1693356080) |

## What reviewers say

### S

[App page](https://appshunter.io/ios/app/s-fit/id6462419833)

**In-app purchases:** none


### Caffeine Tracker

[App page](https://appshunter.io/ios/app/caffeine-tracker-moonlatte/id6751758649)

This app helps you track your caffeine intake and understand its impact on your sleep, focus, and energy levels. It features a comprehensive database of drinks, real-time half-life calculations, and personalized insights to help you manage your consumption.

**Highlights:** Instant caffeine logging for various drinks, Real-time caffeine half-life calculator, Sleep impact analysis, Apple Watch companion app, Caffeine reduction goals, Smart reminders, Widget support

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MoonLatte Weekly | $2.99 | per 7 days |
| Moon Latte Yearly | $9.99 | per year |
| Lifetime Premium Access | $19.99 | one-time |


## Frequently asked questions

### Is S free?

S is free to download, with no in-app purchases.

### Is Caffeine Tracker free?

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

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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.*