Determining a business model for an open source mobile app with proprietary hosting.

• Flutter

  1,204 162,070 10.0 Dart

  Flutter makes it easy and fast to build beautiful apps for mobile and beyond

  

So i think this is your option: Put all the free time learning app development. I suggest using https://flutter.dev/

• quickstart-android

  337 8,734 7.9 Java

  Firebase Quickstart Samples for Android

  

Well. You can host it yourself. So you wont have any server costs. Apart from electeicity bill. And must be running at all times. Alternatively you can use Firebase https://firebase.google.com/ They have free spark plan that you can use to develop app and depending on how many users and usage you will have, might be free. Hovever If you think about it, Your buisness model must cover server costs. So you must be abe to afford it as users base is growing.

• InfluxDB

  www.influxdata.com featured

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

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