When comparing Bilingua vs idyoma, the Slant community recommends Bilingua for most people. In the question“What are the best language exchange apps for Android?” Bilingua is ranked 2nd while idyoma is ranked 5th.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Looks really nice
Pro Effective
Pro Efficient
You're not just chatting with native speakers, you get to practice with their bot as well. There's also a vocabulary list that lets you store words from your chats--really helps with learning the language more.
Pro Find people near you
The local search emphasis means you can find people to meet with in real life.
Pro Clean design
It looks and feels modern and clean.
Pro Swiping cards
Some people may like the Tinder-esque swiping system, but it's good they don't do matching.
Pro Group chats
You can make group chats out of people you've spoken to in the past to arrange a group exchange.
Pro Responsive users
So far most people on the app seem to be responsive and friendly.
Pro In-message translation
When you don't understand a word while messaging with someone you can tap to see a translation.
Pro Very visual
Users can upload multiple photos so you have a better idea of who you're meeting.