Burmese or Vietnamese?

I am thinking of learning one of these languages and they each seem equally difficult. Is there one that is better to learn than the other I.e. Study resources?

Vietnamese is spoken by more than double the amount of Burmese speakers - it's now up on Duolingo as well. There's quite a few phone apps on iOS for Viet, haven't seen any for Burmese. I imagine Android is the same.
You won't have to learn a completely new alphabet, but there are some pretty complex vowels. If you can cope with more tones then Vietnamese is the obvious choice

Are you sure Vietnamese is on duolingo? Last time I checked they only did European languages.

Any other Asian languages on there? Free ones?

It's in Beta mode but yes it's on there.
Russian's on there.
Hindi, Korean and Indonesian are hatching - they could take a while yet. Depends on how much spare time the course contributors have.

If you feel like learning Korean though, check out KoreanFromZero - the first book is free as a pdf on their site. They also have a few Japanese books out but none of these are free.
If you want to learn Mandarin and you have a smartphone, look up "HelloChinese" and "ChineseSkill". If you've not learnt many languages before, use ChineseSkill first. HelloChinese's pace goes far too quickly for beginners as my friends found out. Although you might be fine if you just keep repeating the the lessons until you have the swing of it.

Thanks. I downloaded duolingo and there's no Vietnamese but I am doing Russian!

Chinese skill also looks pretty decent.

Might not be available on the app, but it's definitely there on the website.
Ayee, ChineseSkill is pretty good. You can unlock everything after doing just a few lessons whereas with HelloChinese you have to unlock them one bye one.

Do you know of a similar app for Asian languages like Chinese Skill? Atm I am using Mondly, FluentU, Nemo, Babbel, Busuu, and Duolingo for various languages, but probably Chinese Skill is the best of all!

Shame there is no similar app for Korean or other Asian languages... Or is there?