Check! is a simple, focused habit tracker built around one idea: every day
you care about, tap a topic once to check it off. That's it. No mood
sliders, no feature bloat — just a fast, satisfying way to track what
matters and watch it add up, day after day.

Whether you're running every morning, writing a book, learning a language,
logging commits, or building any habit worth keeping, Check! gives you a
clean, visual way to see your progress grow.

WHY CHECK!

One tap a day. Every topic you track is a single push per day. That limit
is the point — it keeps the data honest and the habit real.

Set your own goals. Default to a 300-day goal per topic, or change it to
whatever fits: a 30-day sprint, a year-long habit, or an open-ended streak.

Miss a day? Add it back. Real life happens. Retroactive entry lets you
fill in any missed day up to 30 days in the past — no guilt, no broken
streaks over a forgotten tap.

See your progress. Every topic has a 30-day history chart and a progress
bar toward your goal. A daily stats view shows your overall consistency
across all topics at a glance.

Stay organized. Tag topics, filter by active or finished, and reorder
them with drag-and-drop so what matters most stays on top.

FEATURES

- Daily check-off for each topic — simple, fast, focused
- Customizable goals (default: 300 pushes)
- 30-day visual history chart per topic
- Retroactive entry up to 30 days back
- Finish topics when you're done, or start a new iteration to keep going
- Continue pushing past your goal if you want to keep the streak alive
- Tag-based filtering and multi-select organization
- Manual drag-and-drop sorting (long-press to activate on mobile)
- Daily stats dashboard across all topics
- Full push history per topic
- Export everything to CSV — topics and push history
- Sign in with Google or email and password
- Link multiple sign-in methods to one account
- Bilingual interface: English and Polish
- Guided tutorial for first-time users
- Works across web and mobile — same account, same data, everywhere

WHO IT'S FOR

Anyone building a habit, chasing a goal, or trying to stay consistent.

- Writers tracking daily word counts
- Runners logging runs
- Language learners logging study days
- Developers logging commits or focus blocks
- Readers logging pages or chapters
- Musicians logging practice sessions
- Anyone who wants to see "I showed up again today" add up over months

HOW IT WORKS

1. Create a topic — anything you want to track
2. Set a goal, or keep the default
3. Each day you do the thing, open Check! and tap push
4. Watch your streak, history, and progress grow
5. Mark a topic finished when done, or start a fresh iteration

No gamification gimmicks. No social pressure. No pushy notifications.
Just a clean, honest record of the days you showed up.

START TODAY

The best time to start tracking a habit was yesterday. The second best
4. Watch your streak, history, and progress grow
5. Mark a topic finished when done, or start a fresh iteration

No gamification gimmicks. No social pressure. No pushy notifications.
Just a clean, honest record of the days you showed up.

YOUR DATA IS YOURS

Check! syncs your topics, goals, and history securely through Firebase,
so the same account works on web and mobile. Export everything to CSV any
time — you're never locked in. Delete your account from Settings and your
topics, history, and stats go with it.

START TODAY

The best time to start tracking a habit was yesterday. The second best
time is today. Open Check!, create your first topic, and make the first
check.

Check! — build habits, one daily check at a time.