Impulse journal · Your trading rules · A moment to pause
Record the trades you made on impulse—and the urges you resisted. Check your rules before placing an order, and take a break when you feel rushed.
Android · Free to download · Contains ads and in-app purchases
Knowing a rule. Following it.
Before you place an order, revisit the rules you set for yourself.
Your rules, at the moment they matterWhen you feel rushed
After a loss, or when an unplanned trade looks tempting.
Open the break screen. Breathe at your own pace, then return to your rules.
In the app: gentle music, a kind word, and a slowly moving circle.
A little room before your next decision.
Tap to hear the same music used in the app.
Your impulse journal
What made you rush? What were you feeling?
Write down the moments your profit and loss cannot explain.
Choose whether you traded on impulse or resisted the urge.
Recovering a loss, fear of missing a move, impatience, anxiety. Select what fits, then add any details you want to remember.
Open a date to read, edit, or delete your entries.
Found a rule you want to follow next time? Add it to your own rules in a sentence.
Start Principle Keeper on Google Play
A RULE FOR THIS MOMENT
Choose a trading situation. Read, hear, or copy a concrete example rule.
Put it into practice
A pre-market routine built on your own trading rules: review your plan, check your criteria, and review your rules before you place an order.
Feeling pulled to win back a loss? Step away from the order screen, read your own rules, and record what happened in your impulse journal.
Work on trading discipline one action at a time. Use your trading journal review to choose a rule for the next moment you feel rushed.
AFTER YOU WRITE
AI analysis
Analyze up to 20, 30 or 50 recent entries to review recurring triggers and emotions. Each analysis is a separate purchase, with a detailed PDF report included. Entries are sent to OpenAI only with your consent.
Premium Pass
Premium Pass is a subscription that removes ads. AI analysis is sold separately. Check local prices and manage your subscription in Google Play.
Account and backup
Your rules and journal stay on your device, even without an account. Sign in with Google in Settings to back up or restore manually. Backups are not automatic. Restoring replaces your device’s rules, journal and reports with the backup.
Your trading rules, when you need them
Android · Principle Keeper