Steuerbot is a German tax app that helps users complete their income tax returns through a simple chat interface. It’s ideal for employees, students, and retirees with straightforward tax cases. You answer easy questions, see your estimated refund, and can submit directly to ELSTER in about 20 minutes. Basic use is free; submitting costs around €39.99. Data is securely stored and GDPR-compliant.

Amazon.de is the German version of Amazon, one of the world’s largest online marketplaces. It offers a wide range of products—from electronics and books to clothing and household goods—with fast shipping, customer reviews, and various payment options. It also provides services like Amazon Prime, returns, and customer support in German.

Lebara is a British-founded MVNO (mobile virtual network operator) active in Germany since 2010. It offers affordable prepaid SIM cards using networks like Telefónica (O₂) and previously Vodafone/Telekom

Dr. Walter (DR‑WALTER GmbH) is a German insurance broker specializing in travel and international health coverage—especially for au pairs, students, expats, and long-term travelers. With over 60 years of experience (founded in 1959 by Dr. Siegfried Walter), the company offers tailored insurance plans via digital processes and personal support from their Neunkirchen‑Seelscheid office .