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Crek

Your habit tracker.

A free habit tracker that runs in the browser, with your to-dos and notes beside your habits. Use it on your own, or share one list with your family, partner or friends.

Role
Solo: design, build, launch
When
June 2026 – now
Stack
Next.js 16, Cloudflare Workers, MongoDB, Better Auth, Groq Whisper, Gemini, Resend, PostHog, Three.js, Expo
Links
01

One tap at a time

Every habit and to-do due today sits on one page, yours and your groups’. A habit is either a single tick or a goal, like 8 glasses of water, that fills a tap at a time. Forgot to tick? Fill the day in later.

Crek’s Today page: Drink water, Read 20 pages and Meditate, each with its last three days.
02

Do it together

A group shares one list. Each item is for anyone, for one person, or for everyone, so “who’s taking the bins out?” is answered on screen. Groups keep a leaderboard, too.

A Crek group: Bins out for @maya, Water the plants for anyone, Walk after dinner for everyone.
03

Say it, and the to-do writes itself

Speak a to-do and Whisper on Groq writes the words down. While you read them back, Gemini turns them into to-dos and habits, checked against a Zod schema, so they’re usually ready by the time you press Continue. A photo or a screenshot works the same way.

~300 msfor Whisper on Groq to write down what you said.

Crek’s voice capture showing what it heard: “Book the vet for Friday”.
04

A streak for every habit

Every day, on the weekdays you choose, or once a month. Only reaching a habit’s goal counts toward its streak, and a day that’s only part done shows lighter.

A Crek habit calendar for October: an 11-day streak on Read 20 pages.
05

Reminders that don’t nag

One daily email, sent by a Cron on Cloudflare Workers at the time each person picks, in their own time zone. It lists only what is still open, and goes out in batches through Resend so each run fits the free tier’s CPU limit.

06

Minigames for a short break

Five quick 3D games, Stack, Glance, Recall, Orbit and Core, built with Three.js and played in the browser with nothing to download.

Crek’s minigames page with Orbit selected.
07

Built to be found

Crek is aimed at one search: “habit tracker”. A free tracker works without signing up, next to a printable, a Google Sheets template and guides. Each page targets its own search phrase, with structured data and a fast first paint.

Crek’s free habit tracker page, usable without an account.
08

What it isn’t

  • Paid. There is no paid tier and no cap on habits.
  • A game. It began as a to-do list with XP and levels; I took them out. Streaks and calendars are the product.
  • Another app to install. It runs in any browser and installs like an app; a React Native (Expo) app adds iOS widgets and native alarms.