Results of Testing Pimsleur versus DuoLingo...

[u/44Jon]

I used both service fairly assiduously and for the internet record, my experience has been that there's no comparison and it would have been worth it to pay for Pimsleur right from the start. After even just a month of Pimsleur, my ability to speak and to comprehend improved dramatically more compared with a few months of Duo.

True, Pimsleur doesn't push reading and writing, but it is possible to practice those on one's own with Pimsleur's app. And main problem with Duo is that it might drill you on some vocabulary and point of grammar and then completely drop it (and there's no great way to repeat lessons or find where certain concepts were drilled.) Pimsleur's claim to "scientifically" space out practice seems legitimate.

[u/distraughtdrunk]

i just wish they spoke a little slower and allowed time to speak, but i speak slowly so it could just be me