Life & fun · alternatives · 2026
24 alternatives to Stimly
Real-time caffeine metabolism curve and bedtime estimate
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1IV
2020 · observablehq.com · its alternatives →
- 2
- 3
A basic REST service for JSON data - enough for prototyping and MVPs! - rehacktive/caffeine
2021 · github.com · its alternatives →
- 4
- 5
Track caffeine intake, hydration, and master your sleep
Jan 2026 · apps.apple.com · its alternatives →
- 6
Clarity▲238The world's first caffeine timing app for peak performance.
Dec 2025 · apps.apple.com · its alternatives →
- 7
- 8
Hi 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…
2025 · caffeineclock.app · its alternatives →
- 9
- 10
Know your caffeine level and when you'll be ready to sleep
Jun 2026 · apps.apple.com · its alternatives →
- 11
A caffeine tracker with attitude and no accountability
2025 · apps.apple.com · its alternatives →
- 12
A smart desk lamp that boosts your focus and wellbeing.
2016 · launch.heavn.io · its alternatives →
- 13
UP Coffee▲82via Jawbone Labs: understand how caffeine affects your sleep
2014 · jawbone.com · its alternatives →
- 14
Track your caffeine intake on your AppleWatch
2023 · apps.apple.com · its alternatives →
- 15
- 16MA
2015 · mtechstudy.com · its alternatives →
- 17
A new way to track time and analyse productivity
2016 · savemytime.co · its alternatives →
- 18
Free sleep tools: 34 instant calculators covering sleep debt, cycles, caffeine, naps, and jet lag — all free, no signup required.
2013 · sleepdebtcalc.com · its alternatives →
- 19
- 20
Calculate how long caffeine stays in your system
2025 · caffeinehalflife.com · its alternatives →
- 21
Practical tools we can use to track and improve our biology
2016 · thequantifiedbody.net · its alternatives →
- 22
- 23
- 24
Brew Your Best Sleep: AI & Coffee
2025 · apps.apple.com · its alternatives →
Also compare
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →