Another group mateember agreed with him and said ”Duo tries to include too many aspects of language aspects: listening, writing and speaking.

But we gothave good alternatives for each of the aspects.” ¶
I disagreed with them because it shoulneed not be perfect.

"should not be perfect" would imply being perfect would be bad.
"need not be perfect" just says being perfect isn't required

Duo is a game - yes and ithat’s a perk.

And it’s pretty simple for me to spend just 15 minutes a day foron a game.

Other aspects of language isare important - listening to podcasts or movies is a base of understanding and improvement.

"aspects" is plural, so "is" should be "are"

But iI believe that the gamification and repetitiveness of mobile apps is important .

A friend of mine said, “Duo can’t teach you a language, it’s just a game whichthat shows you a pictures and words”.

Another group matepeer agreed with him and said, ”Duo tries to include too many language aspects: listening, writing, and speaking.

Duo is a game - yes andand yes it’s a perk.

Other aspects of language isare important - listening to podcasts or movies is a base of understanding and improvement.

But iI believe that the gamification and repetitiveness of mobile apps is important .

At least it works with my ADHD brain.

A friend of mine said, “Duo can’t teach you a language, i. It’s just a game whichthat shows you a picture and words”.”

Relative pronouns are difficult even for lifelong English speakers. I believe we use “which” when we’ve already mentioned multiple things and we want to discern between them.

Another group mate agreed with him and said, ”Duo tries to include too many language aspects: listening, writing and speaking.

But we gothave good alternatives for each of the aspects.” ¶
I disagreed with them because it should notDuolingo does not have to be perfect.

Duo is a game -, yes, and ithat’s a perk.

And it’s pretty simple game that is easy for me to spend just 15 minutes a day for a gameon.

Some English speakers will say it’s bad to end a sentence with a preposition, like I do here, but most English speakers don’t care!

Other aspects of language isare important -: listening to podcasts or movies iscan be a base of understanding and improvement.

But iI believe that the gamification and repetitivenesson of mobile apps is important .

The word “repetitiveness” has connotations of boredom or annoyance.

At least it works withDuolingo works for me and my ADHD brain, at least.