When comparing Logsniffer vs Sentry, the Slant community recommends Sentry for most people. In the question“What are the best log management, aggregation & monitoring tools?” Sentry is ranked 3rd while Logsniffer is ranked 26th. The most important reason people chose Sentry is:
It's what Sentry calls [Rollups](https://docs.sentry.io/learn/rollups/]. All individual issues rolled-up can still be drilled down. Also two issues can be **merged** manually.
Ranked in these QuestionsQuestion Ranking
Pro Monitoring and alerting
Scans logs in real-time using powerful search routines and publishes identified events to several channels. Storing events in an Elasticsearch index enables extensive analysis.
Pro UI first approach
Everything can be managed by the great UI: Configuring logs, start/stop alerts etc.
Pro Endless scrolling through logs – forward and backward
There is no need to adjust time filter ranges etc. to scroll up or down in the sequence of log messages.
Pro Lightweight on-premise app
All-in-one bundled web application, 30MB with a low memory footprint. Only Java is required.
Pro Real-time log tailing
Logs are accessed and tailed directly from files in real-time.
Pro Consolidates similar errors and makes resolution easy
It's what Sentry calls [Rollups](https://docs.sentry.io/learn/rollups/]. All individual issues rolled-up can still be drilled down. Also two issues can be merged manually.
Pro Email/Slack/GitHub/Hipchat integration
Newly discovered issues (i.e. one that isn't rolled-up under and existing one) can generate an instant notification via many means.
Pro Has an official Docker image
Sentry has an official Docker image which means it's likely going to be well reviewed and maintained for a while and it makes it easy to set up.
Pro Completely open source, with a hosted version available
Sentry is a completely open source tool. It's free to use if you want to run it on your own. If you want to avoid the overhead of running and maintaining another server, it also has a hosted version available at www.getsentry.com
Pro Source maps support
Has support for source maps.
Pro Can create projects and teams
A single Sentry server can be used for various teams/products.
Con Not really a logging solution
Sentry collects exceptions, it's not a solution for log aggregation.
Con Can't filter by browser versions
Sentry only filters by browser names and not by browser versions (for example: Firefox, instead of Firefox 27, Firefox 28 etc...)
Con No free cloud hosting
Unfortunately there is no free plan for cloud hosted solution. Only self-hosted solutions are free to use.