Capture
Record the situation, options, reasoning, expected outcome, and confidence.
ReasonTrace · iPhone & iPad · JonnyLab
Remember why you decided.
A private decision journal that captures your reasoning, helps you commit with clarity, and brings you back to compare expectations with real outcomes.
Preparing for App Store releasePrivacy Policy
English & Korean · No account · Local-first
ReasonTraceReview scheduled
Decision
Confidence
72%
Review
In 30 days
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Decision Echo
Voice context, kept with the decision
Turn decisions into a learning loop
Commit
Confirm a durable snapshot of what you knew and why you chose it.
Review
Return on a reminder date and compare the actual outcome with your expectation.
Learn
Search your timeline and find patterns across reviewed decisions.
Voice context
Decision Echo
When typing gets in the way, record a short voice note and create a transcript. Recording and speech permissions are requested only when you use this feature. Apple’s speech service may process audio for transcription; JonnyLab does not upload it to JonnyLab servers.
Built around your control
✓Decisions and reviews stored locally
✓App Lock and privacy cover
✓Review reminders with generic notification text
✓JSON and Markdown export
✓Delete individual records or all app data
✓No ads or advertising tracking
AI Reflection is not enabled in the current production configuration. The core decision journal works without it.
Capture the reasoning. Review the outcome.