# GDC Tools Manager

> The shared GDC World account: register once, sign in to every GDC World app an administrator activates for you, and manage your household.

GDC Tools Manager is a web app by GDC World. It runs in the browser. One GDC account, created here, signs you in to every GDC World app. Tools store their data per household, so a family shares one set of data.

- [User guide](https://docs.gdc-world.net/tools-manager/): every screen explained, English and German
- [Getting started](https://docs.gdc-world.net/tools-manager/getting-started/): account, e-mail confirmation, approval, household
- [User guide as Markdown](https://docs.gdc-world.net/llms.txt): index of every guide page
- [Create a GDC account](https://manager.gdc-world.net/register)
- [GDC World](https://www.gdc-world.net/llms.txt): all GDC World apps

## Apps you sign in to with a GDC account

- [Cat’s Health](https://www.gdc-world.net/tools/cats-health/)
- [The Recipe Book](https://www.gdc-world.net/tools/recipe-book/)
- [Travel Planner](https://www.gdc-world.net/tools/travel-planner/)
- [Season Planner](https://www.gdc-world.net/tools/season-planner/)