# Caffeine App vs Skipper

The clearest difference is price: Caffeine App at Free against Skipper's $1.99. Caffeine App also leads on ratings volume (340 vs 8) and update cadence (monthly vs every 2 months). Skipper's advantage is in-app purchases (none vs 1) and rating (5.0 vs 4.6). On ads and iOS requirement there is nothing between them.

Caffeine App is free to download; Skipper costs $1.99 up front. Caffeine App sells 1 one-off in-app purchase. Skipper asks for nothing beyond the download.

Skipper holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Caffeine App has 340 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 74% of Caffeine App's written reviews are positive against 100% of Skipper's.

Caffeine App ships an update monthly, Skipper every 2 months. The most recent releases landed on September 29, 2026 and June 26, 2026 respectively.

## The numbers

| Metric | Caffeine App | Skipper |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [4.6 (340 ratings)](https://appshunter.io/ios/app/caffeine-app-daily-tracker/id1045959983/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/skipper-flashback-journal/id6736599558/reviews)** |
| Number of ratings | **340** | 8 |
| Positive reviews | 73.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | — | **#195** |
| Size | 17 MB | 7 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, Apple Watch, Vision Pro** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Oleg Mueller](https://appshunter.io/developer/367875607) | [Katherine Apone](https://appshunter.io/developer/1772585895) |

## What reviewers say

### Caffeine App

[App page](https://appshunter.io/ios/app/caffeine-app-daily-tracker/id1045959983)

Track your caffeine intake from various beverages and monitor your hydration levels. Visualize your caffeine curve over 24 hours and receive notifications for your optimal sleep time. Integrates with Apple Health and Apple Watch for seamless logging and data syncing.

**Highlights:** Log caffeine from coffee, tea, and energy drinks, Visualize 24-hour caffeine curve, Calculate optimal sleep time, Track daily water intake, Apple Watch logging and complications, Apple Health integration, iCloud sync

**Features:** Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro | $4.99 | one-time |

**What reviewers like**

- 👍 Easy to use and intuitive interface
- 🎯 Accurate caffeine tracking and decay calculations
- ⏰ Helpful sleep readiness predictions
- 🏥 Apple Health integration for long-term tracking
- ⌚ Apple Watch support with quick logging

**What reviewers complain about**

- ⚠️ Recent performance degradation from new features
- 📊 Graphs become too small with multiple charts enabled
- ⏳ Long graphics update delays affecting responsiveness
- 🐛 Sleep ready time shows current time instead of prediction
- 🌍 Limited beverage library for non-German markets

**Reported bugs**

- Sleep ready time displays current time instead of predicted sleep time
- Cannot rename custom amounts until after adding them
- Newly added custom amounts appear at bottom of list
- Health app data from third-party apps not syncing
- All presets missing in some versions

**Requested features**

- Toggle option to disable bar chart visualization
- Taller graph display area with scrolling capability
- Personalization based on body weight and metabolism
- Ounce-based measurement options for drinks
- Multi-day and historical trend analysis


### Skipper

[App page](https://appshunter.io/ios/app/skipper-flashback-journal/id6736599558)

**Currently charting:** #195 Top Paid · Health & Fitness (US App Store)

This app allows you to send messages to your future self, which are delivered as notifications days later. It's designed to help with self-reflection, emotional processing, and personal motivation. The app prioritizes user privacy with no data collection.

**Highlights:** Send messages to future self, Timed notification delivery, Emotional and thought exploration, Personal motivation tool, Privacy-focused, no data collection

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Caffeine App free?

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

### Is Skipper free?

Skipper costs $1.99, with no in-app purchases.

### Which has better reviews, Caffeine App or Skipper?

Skipper is rated higher. Caffeine App averages 4.6 out of 5 from 340 ratings, while Skipper averages 5.0 from 8 ratings.

### Do Caffeine App or Skipper have ads?

Neither Caffeine App nor Skipper shows ads.

### Which is updated more often, Caffeine App or Skipper?

Caffeine App ships an update monthly, and Skipper every 2 months. Most recently, Caffeine App was updated on September 29, 2026 and Skipper on June 26, 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.*