I work for a security company that specializes in developing biometric applications. I'm looking for recommendations for a third party communication API that can send push notifications to clients. The notification would be flagged as an alert, containing an image. Clients can then confirm or deny the alert. This client input gets returned to our servers where we process the update.
Ultimately, a service that can notify a message and provide a response.
I am looking for either:
A fully custom-built solution that needs to be configured for every location.
A centralized server that we can control, looking for a third-party solution that would facilitate the communication between our server and client devices.
The application would need to be white labeled.