Onaw allowed Facebook to monitor the time people spend and the mobile / WiFi data they use per app, as well as websites they visit. It also showed the social network of their country and their device's model. The program gathered the data that convinced the social network to buy WhatsApp, one of the largest instant messaging services in Asia. As you can tell, it's a big loss when it comes to market research, especially since the company is not just killing the Android app ̵
"Market research helps companies build better products for people. We are shifting our focus to reward-based market research, which means we're going to end the Onaw program."  The company recently faced heightened scrutiny after a TechCrunch report revealed that it used code from Onavo to power a new application called "Facebook Research," which paid users for access to their data. While the application informed participants that their activities would be monitored in exchange for gift cards, it prompted them to install a corporate certificate. Seeing as Apple only allows developers to use that certificate for corporate apps, Facebook Research has clearly violated the App Store guidelines. As a result, Cupertino has banned Facebook's corporate certificate and broke all of its internal applications.
Based on the spokesperson's statement, Facebook is still planning to pay for information going forward. The company will just have to find a way to do this without violating any platform's guidelines.