StatCounter - StatCounter is a simple but powerful real-time web analytics service that helps you track, analyse and understand your visitors so you can make good decisions to become more successful online.

Twitter Polls - Polls embedded in tweets

Histats - Start tracking your visitors in 1 minute!

Simple Poll - The easiest way to create polls in Slack

Matomo - Matomo is an open-source web analytics platform

Curious Polls - Answer a question once a day for the chance to win £100/$100