1. Cortana:
Initially developed for Windows phone, Cortana is now available on Android devices. The app was developed by Microsoft and it is one of the most popular personal assistant artificial intelligence apps.

2. Google Allo:
Google Allo is a messaging app that allows users to perform action on their Android phones via their voice. It can also be used as a voice to text app on Android devices.
3. Hound:
Hound is an artificial intelligent Android app that works in a similar way to Google Voice Search. You can activate Hound without needing to tap the screen, all you need do is say “Ok Hound”.

4. ELSA:
For those who wish to improve their English speaking skills, then hire Android app developer to help you develop an app like ELSA. ELSA (English Language Speech Assistant) is one of the most popular artificial intelligence Android apps for learning the English language.

5. Robin:
This is yet another voice assistant artificial intelligence app for Android users. It can help assist users to compose text messages without the need for actual typing. It can also help in getting GPS navigation as well as set remainder for any work you have to do. Robin can be used to get traffic status, Twitter news, weather forecast, or to even find a parking place.

6. Recent News:
Recent News is an artificial intelligence news aggregation app used on Android devices. It algorithm works by studying users reading habits. Using your reading habit, past behavior and interest, the app will keep users updated on latest articles, news, and other relevant stuff. It helps users to stay informed and updated on subjects they find interesting.