Spelling is important! How are popular apps misspelled?

Duolingo and Babbel are two of the most popular apps. It's easy to misspell their names. How often do people do it?
Every month millions of language learners look up Duolingo and Babbel on Google. What are popular ways to misspell those apps?

Misspells per month:

Duolingo:
Doulingo - 79,000
Duo Lingo - 35,000
Dulingo - 26,000
Dualingo - 17,000
Dolingo - 9,900
Duoling - 7,700
Duoligo - 2,800
Duelingo - 2,700

Babbel:
Babel - 45,000
Babble - 34,000
Bable - 5,200
Babbl - 700

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