You're probably confused where DataDog and Scout overlap. You're not alone! They've each offered similar products since their inception, and come on, they both have dogs in their logos!
Here's a timeline to clear things up:
- Both Scout (2009) and DataDog (2010) started around the same time and focused on system-level monitoring (server resource usage, custom metrics via StatsD, etc).
- In late 2015, Scout launched a dedicated Application Performance Management (APM) product. DataDog launched their own flavor of APM nine months later.
- In the summer of 2017, Scout's original server monitoring product was acquired by Pingdom, becoming Pingdom Server Monitor. Scout now focuses on application monitoring.
DataDog offers both infrastructure and application monitoring. Scout offers a focused APM product, so their offerings overlap on application monitoring.