Overview
There are many production tools that are used to simplify the development of Android apps by providing easy analytics, metrics and crash reporting. Here are a few of the best providers for each category.
Analytics
These are the best mobile analytics reporting tools:
Crash Reporting
These are the best crash reporting tools:
Feedback and Bug Reporting
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Instabug - In-App Feedback and Bug Reporting
OTA Builds
These are the best tools for distributing beta builds for your apps:
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BuddyBuild - Continuous integration, feedback reporting, and beta build distribution
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TestFairy - Complete Testflight Replacement
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Appaloosa.io - Simple and secure OTA app distribution 
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DeployGate - Painless OTA distribution for apps
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HockeyApp - Simple OTA app distributions
Push Messaging
These are the best services for easy push messaging:
A/B Testing
These are the best A/B testing services:
Device Testing
These are the best resources for testing your app across multiple real and emulated devices. 
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TestObject - New site for scheduled or manual black box testing of Android apps or mobile web sites. Allows testing on real devices.
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SauceLabs - Test native mobile apps on a variety of iOS & Android emulator configurations.
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Google Cloud Test Lab - Cloud Test Lab allows you to run  all of your tests across all physical devices, all at the same time.
Performance
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Monkop - Get detailed analysis about performance, security and functionality of your Android apps.