Devo is described as ', delivers real-time operational and business value from analytics on streaming and historical data to operations, IT, security and business teams at the world’s largest organizations' and is an app in the Network & Admin category. There are more than 10 alternatives to Devo for a variety of platforms, including Online / Web-based, Linux, Mac, Windows and Self-Hosted solutions. The best alternative is elasticsearch, which is both free and Open Source. Other great apps like Devo are Graylog (Free, Open Source), Kibana (Paid), Logstash (Freemium, Open Source) and Splunk (Freemium).
Graylog is an open source syslog implementation that stores your logs in Elasticsearch. It consists of a server and web interface written in Java that accepts your syslog messages via TCP or UDP (or GELF messages) and stores it in the database.
Splunk is software that provides unique visibility across your entire IT infrastructure from one place in real time. Only Splunk enables you to search, report, monitor and analyze streaming and historical data from any source.
Loggly is a cloud-based log management service built on top of a powerful search engine. With Loggly, you can collect logs from your servers then quickly search them with an intuitive user interface. We make looking at logs fun again!