About
German learners can read "einundzwanzig" on paper and know it means 21, but freeze when a cashier or train announcement says it at speed. The reverse-order spoken form (literally "one-and-twenty") breaks the left-to-right mental model that English speakers rely on. The only fix is repeated focused listening.
Zahlhaus is built for exactly that drill. A native German speaker reads a number, date, time, price, phone number, or short conversation aloud. You type what you hear and get scored instantly. Six test types cover the formats that actually trip learners up, including halb and Viertel forms for time, zwo for 2 on phone calls, and comma-as-decimal in prices. You can replay, or set zero replays for hard mode.
Free forever for cardinal numbers from 1 to 100,000,000. Pro unlocks dates, time, money, phone, and 12 conversation topics with a one-time payment, no subscription. Useful for general learners, exam prep (Goethe-Zertifikat, telc, ÖSD, TestDaF), and anyone moving to a German-speaking country.