Second Brain

Second Brain · Last updated September 23, 2026

Second Brain is a voice and text journal app for iOS and Android. Capture thoughts throughout the day, and let the app automatically extract to-dos and calendar events, and keep a searchable history of your entries.

Features

Get the app

Second Brain is currently available on Android via Google Play. Sign in with your Google account to sync your journal and tasks across devices and, with permission, add new events to your primary Google Calendar.

Legal

Privacy Policy · Terms of Service

Contact

Questions or feedback? Contact us at adriancheok@gmail.com.