# Caffeine Clock

> Caffeine Clock (iPhone/iPad app by BEN LUKE SPINK.)

- Source: https://appshunter.io/ios/app/caffeine-clock/id6757563556 (this page in markdown: same URL + `.md`)
- Developer: [BEN LUKE SPINK](https://appshunter.io/developer/1867615562)
- Category: Health & Fitness
- Price: Free
- Age rating: 12+
- Requires: iOS 17.0 · 3 MB
- Languages: American English
- Released: 2026-01-14
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/caffeine-clock/id6757563556/reviews.md

## What is Caffeine Clock?

Stop guessing why you can't sleep. Caffeine Clock uses advanced half-life modeling to show you exactly how much caffeine is still in your system—long after your last cup.

Most people don't realize that up to 25% of their morning coffee is still active at bedtime. Caffeine Clock visualizes this hidden energy, helping you find your perfect "cutoff time" for better rest and consistent focus.

KEY FEATURES:

Real-Time Half-Life Graph See your active caffeine decline hour by hour. Know exactly when you'll be clear.

Smart Sleep Alerts Get notified if a late latte puts your sleep at risk. We calculate the impact based on your personal bedtime.

Personalized Metabolism Everyone processes caffeine differently. Customize your half-life sensitivity to match your body.

Focus vs. Jitter Zones Stay in the productive "Focus Zone" and avoid the anxiety-inducing "Wired Zone" with clear visual thresholds.

 Live Widgets Monitor your status right from your Home Screen and Lock Screen without opening the app.

WHY CAFFEINE CLOCK?

Free: No paywalls, no subscriptions.
Private: All data stays on your device. No accounts, no tracking.
Simple: Just tap to log. We handle the math.
Take control of your daily rhythm. Download Caffeine Clock today and sleep better tonight.


## Version history (last 3 releases)

### 1.2.0 — 2026-02-26

Full rebuild of the app in Swift

### 1.1.0 — 2026-02-04

What’s New in Version 1.1.0:
• Barcode Scanner — Quickly add drinks by scanning the barcode.
• Widget Fix — Resolved an issue where the widget wasn’t updating correctly.
Thanks for using Caffeine Clock! If you’re enjoying the app, we’d love a rating on the App Store.

### 1.0 — 2026-01-14

No release notes.

## More apps by BEN LUKE SPINK

- [Modded: AI Car Customization](https://appshunter.io/ios/app/modded-ai-car-customization/id6758806459)
- [ToiletFinder - Find a toilet](https://appshunter.io/ios/app/toiletfinder-find-a-toilet/id6759688067)

All apps by BEN LUKE SPINK: https://appshunter.io/developer/1867615562

## Related topics

[caffeine clock](https://appshunter.io/ios/topics/caffeine-clock)

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-19.*