Klim
You can design your DB and change it when you need it without a PC.
For now support SQLite, MySQL, PostgreSQL. I will add others in the future.
For creating SQL code just tap one button and use SQL in your database.
If you want to show scheme somebody, just exports in a picture and sends it.
It is a free application and you don’t necessary to pay, only if you want to support this project.
Without ads.
Available on Google Play Store for Android
