# Blinkwell

> Blinkwell — Eye breaks that wait for your eyes to need them. On-device blink and posture care for your Mac.

Blinkwell is a quiet macOS menubar app that watches your blink rate and
posture in real time, on-device, and only nudges when your body actually
needs a break. Built by Triantafyllos (Rose) Samaras out of Athens.

## Key facts

- Runs entirely on-device using Apple's Vision framework.
- Camera frames are processed in memory and never written to disk.
- Camera frames are never sent over the network.
- Tracks blink rate, blink completeness, and posture.
- Blink rate normally drops by about half during screen use, which is
  the main cause of dry eye and Computer Vision Syndrome.

## Core pages

- [Home](https://blinkwell.app/): product overview and download.
- [About](https://blinkwell.app/about): why Blinkwell exists, told first-person.
- [Studio](https://blinkwell.app/studio): the founder and other ventures shipping
  from the same Athens studio (Reaudit, LeadFlow, 3D Plotter, Race In
  Form, My Greek Cousin, Samaras Foods, MacFart).
- [Pricing](https://blinkwell.app/pricing): free download, optional one-time Pro.
- [Contact](https://blinkwell.app/contact): email goes straight to the founder.

## Articles

- [How Blinkwell measures blink rate on a Mac, privately](https://blinkwell.app/blog/how-blinkwell-measures-blink-rate-privately) (markdown: https://blinkwell.app/api/content/founder-how-blinkwell-works/markdown): Blinkwell uses Apple's on-device Vision framework to track blink rate and posture in real time. Camera frames are processed in memory and never leave your Mac.
- [What changes about your eyes after 40 (and how it stacks with screen time)](https://blinkwell.app/blog/eye-changes-after-40-screen-time) (markdown: https://blinkwell.app/api/content/founder-eyes-after-40/markdown): Around 40 the lens stiffens (presbyopia), tear production drops, and pupils respond more slowly. Combined with daily screen use, the effect is sharp. Causes and fixes.
- [The 20-20-20 rule, what the science actually says (and why a timer isn't enough)](https://blinkwell.app/blog/20-20-20-rule-science) (markdown: https://blinkwell.app/api/content/founder-20-20-20-rule/markdown): The 2022 Aston University trial confirmed the 20-20-20 rule reduces digital eye strain and dry-eye symptoms while reminders are active. A breakdown of the evidence.
- [Why your eyes feel dry after a day at the screen: the blink rate problem nobody talks about](https://blinkwell.app/blog/why-eyes-feel-dry-screen-time) (markdown: https://blinkwell.app/api/content/founder-blink-rate-dry-eyes/markdown): Blink rate falls from 15 to 20 per minute to about half during screen use, dries the tear film, and produces Computer Vision Syndrome. Citable research and what actually helps.

## Sitemaps

- [XML sitemap](https://blinkwell.app/sitemap.xml)
- [LLM sitemap (with markdown alternates)](https://blinkwell.app/llm-sitemap.xml)
- [Full markdown bundle](https://blinkwell.app/llms-full.txt)