Daily retrospective commitment tracker
You write the rules. Once a day, you mark whether you kept them.
It doesn't nag you, notify you, or track anything while you live the day. You look back at yesterday and answer honestly. That's the whole loop.
- Kept
- Broken — run resets
- Not scheduled
- Not yet reviewed
The loop
Three things happen, and nothing else does.
Write the rules
Your commitments, in your own words. Each one runs every day, or only on the days you choose.
Look back at yesterday
Mark each rule kept or broken. Nothing was measured while you lived the day. You are the only source.
Leave one note
140 characters on how the day felt. Not a journal — a margin note you'll actually reread.
Strict by design
Most habit apps forgive a missed day. This one doesn't.
A kept run counts consecutive scheduled days. Miss a day you were due, and the run goes to zero. No freezes, no repairs, no grace period, no second chances bought with points.
That is what the name means. A streak that forgives you isn't measuring anything.
Today stays blank until you log it. It isn't counted as missed — it just hasn't been reviewed yet.
In the app
Enough to be honest with yourself, and no more.
Rules and schedules
A rule runs every day, or only on the days you pick — exercise on Tuesday, Thursday, Saturday. Each rule tracks its own current streak, best streak, and adherence percentage.
History-aware schedules
Once a rule has been logged, its schedule locks going forward. Change it and the change applies from today on — past streaks are never retroactively rewritten. Titles stay editable, so typos are fixable. The maths stays honest.
Calendar
Every day at a glance: kept, broken, or incomplete. Filter to a single rule to see how you've held one specific commitment over time.
Insights
Per-rule kept rates over the last 30 days and all time. Weekly kept-rate bars. An app-wide chart of what fraction of your rules you kept each day, with a weekly average drawn over it.
Archive
Retire a rule and it keeps its history. Reveal archived rules whenever you want to look back.
Local-first
The app works entirely without an account. Your rules and your days live on your device.
Sync
An optional account will carry your history between devices — a manual upload or download, your choice of direction, never a silent merge.
Being built · not in the app yet
Deliberately absent
What a quiet app leaves out.
- No notifications. It never nags.
- No live tracking. Nothing runs in the background.
- No points, badges, or levels.
- No streak freezes or repairs.
- No feed, no friends, no leaderboard.
- No advertising — Systems Atlas Project doesn't do advertising, on principle.
On the name
pierce,
carry through
penetrate
thoroughly
貫徹 — resolve carried through to the end. The whole word means not stopping until it's done.
The Japanese naming isn't decoration. English lacks single unclaimed words for these compressed ideas. Japanese has them.
In development
Kantetsu isn't out yet.
The app is built. Sync between devices is still being finished. When it reaches the App Store, it will be here.
iOS · iPadOS · macOS