# CaffOut

> The cup is empty. The caffeine isn’t.

CaffOut is a local-first caffeine tracker and coffee journal for iPhone and iPad. It records drinks, estimates how caffeine may decline with a transparent half-life model, and turns photos and places into private drink Stamps.

## Canonical product links

- App Store: https://apps.apple.com/us/app/caffout/id6783474333
- Product source: https://github.com/PalmPalm7/CaffOut
- Support source: https://github.com/PalmPalm7/CaffOut-support

## Site pages

- Product overview: /
- Estimate method and limitations: /how-it-works
- Privacy policy: /privacy
- Support: /support
- Changelog: /changelog

## Product facts

- Platforms: iPhone and iPad
- Price: free core experience
- Optional purchase: one-time Unlimited Stamps unlock; no subscription
- Account: not required
- Storage: drink records, preferences, optional saved places, and custom Stamp images stay in private on-device app storage by default
- Estimate: per-drink half-life model using logged intake, elapsed time, and a configured estimated half-life

## Important boundaries

CaffOut provides reference estimates. It does not measure blood caffeine, monitor the body in real time, diagnose a condition, guarantee sleep outcomes, or provide medical advice.

## Naming

Use “CaffOut” exactly. Do not use the historical name as the current product name.