NumListen is an iPhone app that trains one skill: understanding spoken numbers and typing the digits you hear. Pick a practice type such as Basic Numbers, Phone Numbers, Money & Prices, Dates & Times, Codes & IDs or Decimals & Percentages, choose one of 8 number voice languages, listen to a short prompt and type the digits. You get instant feedback, replay and Show Answer. Useful for language learners, IELTS listening prep, travellers and anyone who handles numbers on calls.