Coffee It - Track Caffeine in Simplest Way

Privacy Policy

This Privacy Policy explains how Coffee It handles data when you use the app. Coffee It is designed to keep personal coffee, caffeine, health, membership, and AI analysis data on your device unless you choose to share or export it.

What Personal Data will I collect and use?

Coffee It may store the following information locally on your device:

Coffee and drink history that you enter in the app.
Custom drinks, cup sizes, favorites, app settings, selected app icon, and related preferences.
Cached statistics derived from your local Coffee It history and authorized Apple Health data.
Membership entitlement state needed to show paid/free access in the app.

Coffee It does not upload your coffee history or Apple Health data to a Coffee It server.

Apple Health and HealthKit

If you grant Apple Health permission, Coffee It may read selected health data to power statistics and insights:

Sleep analysis.
Heart rate.
Resting heart rate.
Dietary caffeine.
Dietary water.
Heart rate variability (SDNN).
Blood pressure systolic and diastolic.
Walking heart rate average.

Coffee It may write dietary caffeine and dietary water samples to Apple Health when you save supported records and allow Health access.

Apple Health data is used on device to calculate statistics, health correlations, and AI Insights. Coffee It does not upload Apple Health data to a Coffee It server.

You can manage or revoke Coffee It Health permissions at any time in the Apple Health app or iOS Settings.

AI analysis, Apple Intelligence, and Foundation Models

Coffee It may include local AI-powered analysis and caffeine recognition features. When supported by the device and iOS version, Coffee It may use Apple's on-device Foundation Models / Apple Intelligence framework. When that framework is unavailable or fails, Coffee It uses local deterministic or rule-based analysis instead.

AI analysis uses local Coffee It records, authorized Apple Health-derived statistics, and app-local context to generate insights. Coffee It does not send your health records, drink history, or AI prompts to a Coffee It server for AI processing.

Membership, StoreKit, and subscriptions

Coffee It Membership is managed through Apple's StoreKit and App Store subscription system. The app uses StoreKit to load subscription products, start purchases, restore purchases, and check verified entitlement status.

Payment information is handled by Apple. Coffee It does not receive or store your full payment card details.

Coffee It currently uses these membership product identifiers:

coffeeit.premium.monthly
coffeeit.premium.annual

Terms of Use for Coffee It subscriptions are provided through Apple's standard Licensed Application End User License Agreement:

https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Diagnostics and exports

Coffee It includes diagnostic tools that may be used to troubleshoot AI Insights, statistics, Health data integration, and cache behavior. If you explicitly create or export a diagnostic package, the exported files may include:

Coffee It caffeine records and derived statistics for the selected period.
Apple Health-derived summaries or fixture data from authorized Health samples.
AI prompt or input summaries, rule-engine traces, model/engine status, cache status, and diagnostic logs.
Local environment metadata needed to debug the issue.

Diagnostic files are generated locally on your device. They are not sent to the developer unless you choose to share them.

Cookies:

Coffee It does not use cookies in the app.

Tracking and third-party services

Coffee It does not use third-party advertising or tracking SDKs.

Coffee It may open external links that you choose to tap, such as the privacy policy, support/contact links, App Store subscription management, open-source project pages, or developer contact links. Those external websites or Apple services are governed by their own privacy practices.

Data use, retention, and deletion

Coffee It history, preferences, caches, diagnostics, and custom data are stored locally on your device. You may delete app data by deleting the app or using app/iOS features that remove the relevant records. Apple Health records written by Coffee It can be managed in the Apple Health app.

Enforcement

I regularly review my compliance with this Policy. Please feel free to direct any questions or concerns regarding this Policy or my treatment of Personal Data by contacting me through my website.

Changes of Privacy Policy

Coffee It may change from time to time. As a result, at times it may be necessary for me to make changes to this Privacy Policy. Accordingly, I reserve the right to update or modify this Privacy Policy at any time and from time to time without prior notice. Please review this policy periodically, and especially before you provide any Personal Data. This Privacy Policy was last updated on the date indicated above. Your continued use of Coffee It after any changes or revisions to this Privacy Policy shall indicate your agreement with the terms of such revised Privacy Policy.

Contacting

If you have any additional questions or concerns about this Policy or information practices, please feel free to contact me at any time at from my website or app.

Caffeine Data Sources

up-to-dated caffeine data sources list.

Other than these sources, I also advice from Caffeine Informer, a website that have plenty data, to make sure my data was correct and enough.

Order in alphabet by brand name.

Bernachon Bottle / 贝纳颂

Greater or equal to 200mg for each 1kg amount
From the coffee bottle.

Coca-Cola / 可口可乐

Official website
Local market

Dr Pepper

3rd party
Official website

FamilyMart / 全家

Research & 调研第三方网站

发布在个人印象笔记：

KFC / 肯德基

Research & 调研第三方网站

发布在个人印象笔记：

McDonald's / 麦当劳

Official website
Local restaurant

Monster / 怪兽

Official website
Local market

Nespresso Capsule

Official website

ps. The official doesn't conclude every specific type, but give me the range of a big type, so I take the average from the range.

Nescafe Bottle / 雀巢

Greater or equal to 200mg for each 1kg amount
From the coffee bottle.

Pepsi / 百事

Official website
Local market

Soylent Bottle

From official wesite.

Starbucks / 星巴克

Official website
iOS APP for US & China

Saturnbird Super Instant Coffee / 三顿半

From official customer service. Not 100% accurate. A approximate amount.