ScreenPin vs Caffeine Rhythm
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ScreenPin
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ScreenPin helps you keep important notes visible with Live Activities. Create a pin in seconds, choose from curated themes, and preview exactly how it will look before publishing. Your notes stay glanceable on the Lock Screen and Dynamic Island, so reminders and tasks are always in sight. - Pin notes to Live Activities instantly - See a real-time preview before publishing - Choose from elegant preset themes - Add photos for visual reminders - Manage pins easily with swipe actions and restore support Whether it’s a task, reminder, or quick memo, ScreenPin keeps what matters right where you can see it.
Caffeine Rhythm
Track your caffeine intake and understand its impact on your body. This app calculates your real-time caffeine levels and predicts when you'll be able to sleep, helping you optimize your daily consumption for better rest.
- Real-time caffeine decay tracking
- Personalized half-life calculation
- Sleep safety countdown
- Coffee shop menu integration
- Streak tracking and gamification
- Apple Watch app with complications
- Home Screen and Lock Screen widgets
- HealthKit integration
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Caffeine Rhythm is your personalized caffeine tracker for iPhone and Apple Watch. It uses your unique metabolism profile to calculate your real-time caffeine level and tell you exactly when you're safe to sleep. Whether you're optimizing your morning coffee routine or making sure that afternoon espresso won't keep you up, Caffeine Rhythm gives you the insights you need to make smarter caffeine choices every day. FEATURES: • Real-time caffeine decay tracking with personalized half-life • Sleep safety countdown — know when you're safe to sleep • Coffee shop menus — Starbucks, Dunkin', McCafé, Costa, Blue Bottle, Peet's, Dutch Bros • Streak tracking and gamification • Apple Watch app with complications • Home Screen and Lock Screen widgets • HealthKit integration — caffeine intake and sleep correlation • Live Activities and Dynamic Island • Smart weekly insights powered by AI SUBSCRIPTION INFORMATION: • Free trial available — try all premium features for 7 days before subscribing • Monthly plan: $2.99/month • Yearly plan: $19.99/year (best value) • Subscription automatically renews unless cancelled at least 24 hours before the end of the current period • Payment will be charged to your Apple ID account at the confirmation of purchase • You can manage and cancel your subscriptions by going to Settings > Apple ID > Subscriptions Privacy Policy: https://hatchingpoint.com/caffeinerhythm/privacypolicy Terms of Use: https://hatchingpoint.com/caffeinerhythm/terms
Screenshots
Verdict
The clearest difference is in-app purchases: ScreenPin at none against Caffeine Rhythm's 2. ScreenPin also leads on ads (none vs shown). Caffeine Rhythm's advantage is update cadence (every 3 weeks vs every 15 months) and device support (3 vs 1). On price and iOS requirement 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
Both are free to download. Caffeine Rhythm sells 2 in-app purchases, starting at $1.99 per month. ScreenPin asks for nothing beyond the download.
ScreenPin ships an update every 15 months, Caffeine Rhythm every 3 weeks. The most recent releases landed on October 30, 2026 and October 10, 2026 respectively.
| Parameter | ScreenPin | Caffeine Rhythm |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 15 months | Every 3 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone | iPhone, iPad, Apple Watch — better |
| Requires iOS | 17.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | 子鑫 陈 | Hatching Point LLC |
In-app purchases
ScreenPin
No in-app purchases
Caffeine Rhythm
- Monthly Premium7 Days trial$1.991 Month
- Yearly Premium7 Days trial$9.991 Year









