Caffeine App vs Simple Caffeine
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Caffeine App
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.
- 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
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How much caffeine is still in your body? When can you fall asleep? Are you drinking enough water? Caffeine App gives you the answers — at a glance. Caffeine Tracking • Log every coffee, tea, espresso, energy drink, or mate • Scrollable 24-hour timeline shows your caffeine curve • See how much caffeine is currently in your system • Create custom drinks with individual caffeine amounts Optimal Sleep Time • Caffeine App calculates when you're ready to sleep • Get notified when your sleep time is reached • Set your personal caffeine limit and desired sleep time Water Tracking • Track your daily water intake with personalized goals • Customizable reminders to stay hydrated • Beautiful charts for caffeine and water consumption Apple Watch • Log caffeine and water right from your wrist • Daily charts for caffeine and water • Complication shows your optimal sleep time More Features • Apple Health integration — caffeine and water entries stay in sync • iCloud sync across all your devices • Dynamic Type for optimal readability • URL scheme support
Simple Caffeine
Easily track your caffeine intake with a simple interface. This app saves your caffeine consumption data directly to Apple Health, requiring access to your health data.
- Simple caffeine logging
- Apple Health integration
- Track intake history
- Minimalist design
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カフェイン摂取量が気になるが、あまり細かく摂取量を記録できない方に、シンプルな操作で記録できるようにするアプリです。 iPhone のヘルスケアにカフェイン摂取量を保存するのでヘルスケアへのアクセスが必要になります。
Screenshots
Verdict
The clearest difference is price: Caffeine App at Free against Simple Caffeine's $0.99. Caffeine App also leads on update cadence (monthly vs every 8 months). Simple Caffeine's advantage is in-app purchases (none vs 1) and iOS requirement (12.0 vs 18.0). On review sentiment, ads and device support 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
Caffeine App is free to download; Simple Caffeine costs $0.99 up front. Caffeine App sells 1 one-off in-app purchase. Simple Caffeine asks for nothing beyond the download.
Caffeine App ships an update monthly, Simple Caffeine every 8 months. The most recent releases landed on August 28, 2026 and September 13, 2026 respectively.
| Parameter | Caffeine App | Simple Caffeine |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.6 (340 ratings) — better | — |
| Positive reviews | 73.7% of reviews | 75.0% of reviews — better |
| Number of ratings | 340 — better | — |
| Update frequency | Monthly — better | Every 8 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, Apple Watch, Vision Pro | iPhone, iPod, Apple Watch |
| Requires iOS | 18.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 17 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Oleg Mueller | feb19 |
Customer experience
Caffeine App
Simple Caffeine
Bugs and requests
Caffeine App
Reported bugs
10 issues- 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
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- HealthKit integration broken in certain versions
- Shift work time differential not processed correctly
- Outdated caffeine data for Dunkin Donuts beverages
- Graphics update delays causing app unresponsiveness
- Watch app loading issues on initial launch
Requested features
20 requests- 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
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- Siri Shortcuts integration for automated logging
- Today widget for quick access
- Mood and energy level tracking
- More granular unit adjustments (fractions of shots)
- Expanded beverage library (Monster Java, Sheetz coffee, K-cups, etc.)
- Custom coffee group creation without preset requirements
- Apple Watch complications showing current caffeine levels
- Watch app graph visualization
- Headache threshold level tracking
- Future-looking graph projections
- Water consumption tracking integration
- Ability to rename custom amounts before adding
- Custom amounts appearing at top of list instead of bottom
- Shift work schedule support
- Average daily caffeine statistics
Simple Caffeine
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Caffeine App
- Unlock Pro$4.99
Simple Caffeine
No in-app purchases
Questions
Is Caffeine App free?
Is Simple Caffeine free?
Do Caffeine App or Simple Caffeine have ads?
Which is updated more often, Caffeine App or Simple Caffeine?
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