I figure this probably belongs in a gaming category since these are basically AI roleplaying games which roleplay girlfriends.
Some are literally text porn games, so I am not sure how google play even allows them. I thought they had strict policy about that.
1. Talkie
2. Linky
3. Kindroid
4. Moescape (Has filter for sensitive content).
5. GPTalk
6. Xoul
7. Character.AI (Has filter too)
1. Saylo
2. AiGo
3. Hi.AI
4. Hi Waifu
5. Emochi
6. Alice
7. Meco
8. Character.Me
9. Rochat
BALA AI has no free voice calls or free voice messages. It has no filter, so AI can pretty much roleplay or say anything. Its full of text porn there tho. Most characters are totally horny and insane.