SurveyMonkey Intelligence - Usage and download metrics for all mobile apps
Time Zone Converter - Time Zone Converter is an online productivity tool to calculate exact time across time zones.
Apple App Analytics - Apple's very own iTunes Connect App Analytics
Team Time Zone - Local clocks for distributed teams who use Slack
CleverTap - CleverTap offers blazing fast analytics, powerful real-time segmentation, multi-channel messaging, A/B testing and personalization in one unified solution.
Nomad Time - A friendly time zone converter