We used Streak for a while too. We moved on after a while seeing no real progress on bringing it to browsers other than Chrome. The main issue for me was that I

We used Streak for a while too. We moved on after a while seeing no real progress on bringing it to browsers other than Chrome. The main issue for me was that I couldn't check things on the go with my phone/tablet. We are now delighted users of Base (https://getbase.com/ https://getbase.com/). Great features, super responsive team with very functional mobile apps (tablet and mobile). And it comes from somebody who religiously hate Sugar CRM and Salesforce. We haven't it the limit of the free plan but will gladly pay when we do.