Thanks for sharing your questions here.
If you are indeed using SQL lite, the easiest solution may be
Cloud SQL given its SQL compatibility. This is essential a managed MySQL database service. The costs would depend on the resources required for this Cloud SQL instance. The pricing can be found
here.
Depending on your read/write needs and the structure of your data, you may also want to consider
Cloud Datastore. The Datastore has
Geographical point type that may be applicable to you. The pricing page can be found
here.
To provide more specific recommendations, we would need more information about the needs of your application. For instance:
- What are your data models like?
- What kind of read/write volume do you expect?
- What is your budget?
- Do you intend to have a server-side application to handle these storage reads and writes or issue requests or REST calls directly to the storage medium (Cloud SQL, Cloud Datastore)?
Hope this helps.