Life & fun · September 24, 2026
Stimly
Real-time caffeine metabolism curve and bedtime estimate
Stimly launched on September 24, 2026 with 60 votes, #602 of 8,095 launches that month and more than 95% of that year's launches.
What it does
Stimly models estimated caffeine levels over time. Inputs: drink logs, body profile, and a short calibration quiz. The system renders a live clearance curve, distinguishes slow sipping from fast intake, tracks tolerance trends, and shows estimated caffeine remaining at bedtime.
Stimly draws your personal caffeine curve. Log a coffee and see when you
Log a coffee. See when you'll be sharpest, when the crash hits, and how late is too late. Stop guessing your cutoffs. Learn how caffeine metabolism varies by beverage, how to pair L-theanine for calm focus, and how to gently reset your tolerance over 14 days. Backed by 12 published sleep and metabolism studies. No spam. One confirmation email with your PDF link. Unsubscribe anytime. Weight, age, and how coffee actually hits you. That tunes the curve to your body. From your favorites, our database, or a barcode scan. A cold brew sipped over two hours behaves differently than a quick espresso. See when you're at your sharpest, when the crash starts, and how much caffeine will still be around…from stimly.app
Does a similar job
all alternatives →- IVInteractive: Visualizing Caffeine Halflives and Bedtime2020 · observablehq.com · ▲5
Caffeine – Minimum viable back end for prototyping2021 · github.com · ▲206A basic REST service for JSON data - enough for prototyping and MVPs! - rehacktive/caffeine
Caffeine Curfew iOS AppJan 2026 · apps.apple.com · ▲106Track caffeine intake, hydration, and master your sleep
Caffeine Clock – A beautiful and accurate caffeine tracker app2025 · caffeineclock.app · ▲14Hi guys! I would love to show you Caffeine Clock 2.0, a tracker I made that shows you your caffeine levels now and in the future, helping you have undisrupted sleep by timing your caffeine better. A bit of context - as a guy who drinks a lot of caffeine, I wanted to make a good caffeine tracking app for a long time, since nothing I found at the time was sufficient. I wanted to make an app that would be easy to use, show you exactly when you’d have enough caffeine to not have your sleep disrupted, and could add all the drinks I usually drink, for free. After several iterations, I am now…
More life & fun this month
the category →
A free city-building game in your browser. You are the mayor. You know what the city needs. Now get it past the zoning board, the neighbors, the appeals court and the next election.
Life & fun · 1d ago · permit.petercai.com
- IV
Life & fun · 13d ago · tanzaniaeducationproject.org
Turn a phone, tablet or TV into a sign. Type a message and it fills the screen: welcome signs, timers, Wi-Fi passwords and more. No app, no account, free.
Life & fun · 14d ago · bigwords.page
Play a free virtual guitar online with your keyboard or by touch. Slow songs down and see every chord, string and strum. Acoustic, classic, electric and bass.
Life & fun · 8d ago · guitoro.com
Carrier settings from iPhone, Pixel and Galaxy firmware, decoded and compared: APNs, VoLTE, 5G and Wi-Fi Calling per carrier, and what each build changed.
Life & fun · 12d ago · carrierexplode.com
Life & fun · 22d ago · space.bl2.net
Source: Product Hunt launch ↗
Launched alongside, September 2026
the whole month →
E-ink bird frame for Raspberry Pi - real-time bird detection by audio, fully local AI, rendered as real, hand-cut 1800s bird illustrations. - arnegiacomo/fugleramme
AI · Sep 2026 · github.com
- WI
Special relativity simulator in which light crawls along at a human speed, so Lorentz contraction, aberration and Doppler shift happen at walking pace.
Life & fun · Sep 2026 · rivendell.dmitrybrant.com
Start coding agents, control sessions, review PRs. Anywhere.
Dev tools · Sep 2026 · kilo.ai
