Everyone shoud do the text return. On average people get 1000 euros back. There are several ways to apply for tax return. For exampe though Elster, the free program of the tax authorities, but beginners have a hard time using it. And unlike the purchase programs, it offers no recommendations for taxation.
For most citizens, it is worth buying a software to prepare the tax return. Recommended programs regularly cost between 15 and 35 euros.
There are commercial desktop programs that you have to install on your computer every year, and online software that runs in your browser. There are also apps that allow you to create a tax return on a smartphone or tablet.
Find more information on online tools for tax return here.