WordMate Lite
Short answers so you can get back to today's five words.
Open the app, choose the language you want to learn and one life topic, then walk the five word trail. The closing screen lists the exact five words you just learned. In settings you can set a daily goal of 5, 10, 15 or 20 words, and any word you save is grouped by topic and level for later review.
Open WordMate Lite, go to settings and unlock everything with a single purchase. To bring back a purchase made earlier with the same Apple Account, choose restore purchase. Restoring never charges you again.
Pronunciation uses the system voices installed on your iPhone or iPad. Check the ring switch and the volume, then pick a voice for that language in settings. If no voice is offered, add one under Settings, Accessibility, Spoken Content, Voices, then reopen the app.