PRIMARY BUILD
Three-Column Notebook · GPT Edition
SHA-256
E4C2CCD06CB62D06F588BAF4956FEB0337F74EA45C4481142744ABDA2BF1573AProject · Android
Three-Column Notebook
A bilingual, offline notebook for structured three-column records.
The app turns the three-column technique described by David D. Burns into a private Android notebook. Records stay on the device; no account or cloud service is required.
Product details
Three-column records
Capture an automatic thought, identify cognitive distortions, and write a rational response.
Local-first data
Records remain on the Android device and can be imported or exported by the user.
Bilingual interface
Complete English and Simplified Chinese interfaces.
Notebook search
Search both notebooks and highlight matching text in results.
Android downloads
The GPT edition is the current compact build. The Claude edition is an earlier, independently implemented version retained for comparison.
Download APK
ALTERNATIVE BUILD
The Three Column Method · Claude Edition
SHA-256
25BB3F5E2419D622E5711BFCC3B11A83D6051AD770D81DDD64B5F21AF47187D5Android may ask you to allow installation from your browser or file manager. Verify the SHA-256 checksum before installing.