There’s no hint in the description of the apps, their screens, the terms and conditions, or the privacy policies. On Google Play these apps are getting very high scores in user reviews, but these unnaturally high scores seem to come from cheating.
In these apps, users need to pay a service fee to chat.
We have not confirmed that the collected phone numbers and other information are being used for fraudulent or other malicious purposes.
But users of these apps should be aware that their private information is being sent to such companies in the adult-dating business.
The site is popular with young women, and is free to use — but for men, it requires a monthly fee of 2,500 yen.
By looking at your Facebook social graph, Match Alarm recommends a new person for you every morning at 8am.
Users receive a small amount of free credit to start using the service, and this credit is soon exhausted.
Then users are prompted to buy new credits via Google Wallet to continue chatting.Figure 5: Adult-dating services operated by the developers of these apps.Users of Android devices should always be careful about potential information leaks caused by apps.At this point, the service makes attractive offer to give more free credits if users will give a high review score (4 or 5) to the app on Google Play.App-ratings manipulation by offering incentives to users is strictly prohibited by Google Play Developer Program Policies.By liking each other’s profile, two people can start exchanging messages on the app.