CleverTap - CleverTap offers blazing fast analytics, powerful real-time segmentation, multi-channel messaging, A/B testing and personalization in one unified solution.
ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.
Apple App Analytics - Apple's very own iTunes Connect App Analytics
Zapier - Connect the apps you use everyday to automate your work and be more productive. 1000+ apps and easy integrations - get started in minutes.
Callcounter.eu - Callcounter gathers API usage data and gives you insight in trends, slow parts and errors.
n8n.io - Free and open fair-code licensed node based Workflow Automation Tool. Easily automate tasks across different services.