CLARITY

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Last updated: March 2026

At a Glance

App Name Clarity: Caffeine & Focus
Category Health & Fitness - Caffeine Tracker (iPhone)
One-liner Clarity shows you how caffeine actually behaves in your body, so you can use it deliberately instead of blindly.
Core insight Timing matters more than quantity. Most energy, sleep, and focus problems linked to caffeine are caused by when you drink it, not how much.
Founder Joe Griffin, solo founder, designer, and developer. Built in the UK.
Platform iOS (iPhone)
App Store View on the App Store
Website clarity-app.io
Contact joe@clarity-app.io

The Problem Clarity Solves

Caffeine is the most widely consumed psychoactive substance on earth, yet almost nobody understands how it actually works in their body.

Most people experience:

  • Chronic fatigue despite "enough" sleep
  • Energy spikes followed by crashes
  • Poor sleep quality that compounds day after day
  • Heavy reliance on caffeine without knowing why, timing life around where the coffee is

The hidden issue is not caffeine itself. It is unaware caffeine timing and dose. Caffeine has a half-life of 5 to 6 hours for most people. It stays active long after the perceived boost fades, quietly interfering with sleep, recovery, and next-day energy. Most people never see this feedback loop.

Clarity makes that invisible loop visible.

What Clarity Does

  • Tracks caffeine in real time and shows how much is still active in your system at any moment
  • Models half-life decay so you can see exactly how much caffeine remains at bedtime
  • Aligns intake to goals including focus, physical performance, sleep and recovery, or general wellbeing
  • Learns from your data and spots patterns between caffeine timing and outcomes over time

Clarity does not tell you what to do. It shows you what is happening and lets you decide.

What Clarity Is Not

  • Not a quit-caffeine or detox app
  • Not a habit-shaming tool
  • Not medical or diagnostic
  • Not a generic wellness tracker

Clarity is pro-caffeine and pro-awareness. The goal is control, not restriction.

The Narrative: The Caffeine Reset

Clarity's core story is called The Caffeine Reset. The idea is simple: you do not need to drink less caffeine. You need to understand it. When you can see what caffeine is doing in your body, behaviour starts to shift naturally. No willpower required. Just awareness.

Key Talking Points

  1. "Everyone drinks caffeine. Almost nobody knows what it is doing inside them 6 hours later."
  2. "That 3pm coffee? Half of it is still in your system at 11pm. You fall asleep, but your deep sleep is compromised. You wake up tired. So you reach for more caffeine. It is a loop nobody sees."
  3. "Timing matters more than quantity. A small shift in when you drink, not how much, can change your sleep, your focus, and your energy."
  4. "Clarity shows you a live picture of caffeine in your body. Like a fuel gauge, but for stimulation. You log what you drink, and Clarity shows you the consequences in real time."
  5. "It is for anyone who drinks caffeine and cares about performing well, whether that is at a desk, in the gym, or just sleeping properly."
  6. "We are not anti-caffeine. We are pro-awareness. Use it deliberately instead of blindly. We are building a list of verified products, spotlighting brands that know their caffeine content. A1 Physique, Arctic Coffee, and Contact Coffee are already represented in the app with verified product entries."

Founder Bio - Joe Griffin

Joe Griffin is a solo founder, designer, and iOS developer based in the UK. He built Clarity from the ground up across product, design, engineering, and marketing, driven by a personal interest in how caffeine timing affects physical and cognitive performance.

His background is in software development, with a focus on building intentional, user-first products.

For interview requests, promo codes, or additional assets, contact Joe Griffin at joe@clarity-app.io.