Duolingo Data:
Zulu from English 20 units (2024-May-20):
97 levels ㅤ 338 lessons ㅤ NO Stories
wordsLearned=628 ㅤ 20 Different Lessons

Section 1 (20 units)

ㅤㅤ Trophy

[OPTIONAL] Personalized Practice (3 units)
Duolingo offers this section in some accounts

Daily Refresh (1 unit)

Each lesson or 🏆 has challenges, to get the Legendary trophy

Each Unit has Levels and Chests, and each Level has Lessons.
Each Lesson has from 2 to 18 exercises (usually 15)
Each 🏆 has from 2 to 18 exercises (usually 15)
Each Challenge has from 2 to 18 exercises (usually 15)

Edited by Mat!/Ozone, 2024-May-28.