Web application for tracking weight optimized for touch device

Every morning I weight myself. For tracking this data I want to add my weight to a database using my smartphone.

To solve this problem a web app build with Python would be nice.

My solution is weight-app (fork it on github ) using Flask, Jinja, SQLAlchemy and bootstrap.

The weight can be inserted by pressing only two buttons. Additionally there is a textfield for editing values not present as buttons.