Post Black Belt: BJJ Journal

Build Your Own Jiu-Jitsu Widgets

An overview of new widget features to keep your jiu-jitsu routine close: D-day settings, a monthly dot calendar, and home/lock screen widget options.

Published Feb 27, 2026en-US
Build Your Own Jiu-Jitsu Widgets

Lately, I have often thought it would be great to check how consistently I am training without even opening the app. In this update, I prepared widget features that let you quickly check your jiu-jitsu routine from the home and lock screens. In this post, I will briefly introduce the newly added features.


1. What You Can Configure in Widgets

D-day settings

My Own Jiu-Jitsu D-Day Settings

Belt promotions in jiu-jitsu are meaningful enough that people often say they take at least three months. In the D-day widget, you can choose dates that matter to you and check them with your belt on your home and lock screens.

  • The day you started jiu-jitsu
  • Your most recent promotion date
  • Your target belt/stripe promotion goal

This Month's Training Calendar

I made it possible to check recent training records with a simple dot-pattern calendar. Just by looking at how the dots fill in, you can quickly tell whether it was a rest week or a week where you stayed on your routine.


2. Widget Types

Home Screen

Home screen widget settings

On the home screen, you can choose either a simple D-day widget or a widget that includes this month's training calendar, depending on your goal. Now you can check and celebrate your own jiu-jitsu milestones every day.

Lock Screen

Lock screen widget settings

I also prepared two widget types for the lock screen. I added transparent background widgets for the lock screen on Android as well, and you can check detailed setup instructions in the in-app widget guide.


Wrap-up

This update focuses less on flashy features and more on helping you continue your daily training more consistently. Post Black Belt will keep improving in a direction that reduces the burden of logging while helping build a sustainable routine. If you experience any inconvenience or have widget ideas you want added, feedback is always welcome.

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Post Black Belt: BJJ Journal

Post Black Belt is the ultimate BJJ log and training journal for Brazilian Jiu-Jitsu athletes. Whether you train once a week or daily, this BJJ diary helps you systematically track techniques, analyze patterns, and accelerate your martial arts journey with AI-powered recommendations. Join 6,000+ practitioners using the smartest BJJ app to reach black belt faster. Start your BJJ training log today and never forget a technique again!