I do like how the data is presented in the details page. In exploding topics you have to leave the site to see the same on gtrends.
Yes, we both find rising trends but we differ in so many ways.
First and foremost, we give our users the ability to monitor a keyword/topic over time. As a user, you can receive daily, weekly and monthly email alerts.
Secondly, you can search a keyword/topic in any country and what you search stays private to you so that you can build your own private library of trends.
Thirdly, each trend has so many related topics that we find by querying Google, Amazon, YouTube, etc that you can dive into.
And finally, we have a beta feature where the tool forecasts how a trend will likely perform in the next 6 months.
You do require an account to search because I'd like to understand who is searching and protect me a little bit better against bots. Also, searching has a much higher computing cost for me under the hood.
Hope it explains why I did it this way. Thanks for the comment!