# Kof - Caffeine/Coffee Tracker — Keeping track of coffee!

> Keeping track of coffee! (iPhone/iPad app by Wessel de Haas.)

- Source: https://appshunter.io/ios/app/kof-caffeinecoffee-tracker/id6759225766 (this page in markdown: same URL + `.md`)
- Developer: [Wessel de Haas](https://appshunter.io/developer/1877531553)
- Category: Health & Fitness, Food & Drink
- Price: Free with in-app purchases
- Age rating: 9+
- Requires: iOS 18.6 · 23 MB
- Languages: English
- Released: 2026-02-18
- Data updated: 2026-08-21
- User reviews in markdown: https://appshunter.io/ios/app/kof-caffeinecoffee-tracker/id6759225766/reviews.md

## What is Kof?

Kof tracks your coffee and shows your caffeine level decaying in real time — so you always know exactly when to have your last cup.
No accounts. No subscriptions. No tracking. Just your coffee, your data, and a clear picture of what's in your system.

ONE-TAP LOGGING
Log a coffee with a single tap. Long-press to pick from espresso, doppio, filter, or your own custom drink types.

REAL-TIME CAFFEINE CURVES
See your caffeine level right now using a two-phase model: 30-minute absorption followed by exponential half-life decay. Visualise your levels across 2-hour, 24-hour, and 7-day windows.

SLEEP CUTOFF WARNINGS
Kof calculates exactly when to have your last coffee so you drop below your personal sleep threshold by bedtime — factoring in your current level, drink size, and metabolism.

STATS & HEATMAPS
Weekly bar charts, 30-day averages, monthly heatmaps, volume tracking, and an all-time total. Share your stats as a card.
kof PRO — ONE-TIME PURCHASE
Unlock custom drink types, adjustable caffeine half-life, personal daily limit, bedtime settings, CSV history
export, and shareable stats cards. Pay once — no subscription.

100% PRIVATE BY DESIGN
All data stays on your device. No accounts, no cloud, no analytics, no tracking of any kind. Free to download. Start tracking in seconds. Synchronises with your Apple Health data. Data is fully exportable using CSV files.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Kof Pro | $3.99 | one-time |



## Version history (last 3 releases)

### 2.0.1 — 2026-03-30

-Option to synchronise your Caffeine consumption with Apple Health

### 1.1.3 — 2026-03-06

made adjustments to improve experience on ipad

### 1.0 — 2026-02-18

No release notes.

## More apps by Wessel de Haas

- [drinkYs - BAC & Drink Tracker](https://appshunter.io/ios/app/drinkys-bac-and-drink-tracker/id6759519762)
- [GeetarGeorge](https://appshunter.io/ios/app/geetargeorge/id6759810337)
- [BinBeats](https://appshunter.io/ios/app/binbeats/id6760207894)

All apps by Wessel de Haas: https://appshunter.io/developer/1877531553

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*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 2026-08-21.*