Check this out! OpenTelemetry SDKs for iOS and Android, by Embrace.
Let’s connect the frontend and backend telemetry in the same places, and
allow frontend teams to build observability into their everyday engineering practices with the same level of rigor their peers building services or managing infrastructure do.
Read more, including links to the open-source SDK repos: https://embrace.io/blog/why-embrace-opentelemetry-mobile/
