We are planning to build an APP which can integrate other apps usage information with Streamr marketplace. The details including our motivation, plan and etc. are introduced in the following paragraphs.
Motivation
It is well known that Facebook collects and sells personal data without their permissions. Recently, Facebook released its “Study from Facebook” APP to collect other apps (installed in the same mobile phone) usage information only for itself. https://techcrunch.com/2019/06/11/study-from-facebook/ Such an app usage information would be quite valuable for many other companies. Therefore, we are very interested and excited about integrating app usage with Streamr marketplace to crowdsell these data to many other companies not just Facebook.
Plan
As the following figure shows, we want to build an APP named "Streamr Probe" to collect other app usage information with user permission. First, the "Streamr Probe" APP collects other app usage information including:
- All the apps installed on the phone;
- How much time a user spending on the apps;
- The apps activity names;
- The apps battery and mobile data usage;
- The mobile device info, including its country, network type;
The aforementioned information can be accessed by the Android api which can be found at:
https://developer.android.com/reference/android/app/usage/package-summary
After collecting the app usage information, the "Streamr Probe" APP uploads the collected information to the Streamr Marketplace alongside user cohort data. The cohort data includes:
- Anonymous rotating ID;
- Gender;
- Race;
- Age bracket (steps by 5 years);
- Region/Country;
Finally, the Streamr Marketplace crowdsells the uploaded data by running the Monoplasma. And every user can receive their portion of shared revenue in data $DATA directly on the wallet integrated in the "Streamr Probe" APP. They can later decide to transfer to another wallet whenever they wishes.

Background of developing
I (Gang) and my friend Ce developed the Fitbit app that integrated with Streamr. Other use-cases listed in the Streamr Marketplace (like personal Google fitness data) are also developed by us. We are good friends and graduate from the same university. Now I am a PhD student at Beijing Jiaotong Unversity, and Ce is working as a software engineer at Xiecheng company. Both of us are interested in this "Streamr Probe" APP and, hope that we can build it.