There are a handful of apps out there that allow you to try to use Gmail as a standalone program on the desktop, and we fully agree with their vision of trying to take Gmail out of the browser so you can use it as a desktop app. But while this was their aim, our motivation to build Kiwi for Gmail grew as a direct result of our frustration with both a user experience and level of technical quality that we felt was ultimately lacking.
Technically, by far most of the difference between our app and these is due to the fact that under the hood, our app isn't based on as a single-site browser implementation like theirs are. Much of the very hard work we've done over the past 2 years has been to take a completely different approach, which is uniquely suited to turning Gmail into a high-fidelity desktop application.
In terms of features, there is much that is different as well. We have a uniquely streamlined, intuitive, and graceful UI, we have important-only notifications, entirely unique multiple accounts implementation, actual Drive attachment support, and desktop integration is either more robust or entirely unique to our app compared to these others, we let you use the app as a default email client, and there are many details beyond these. In the best of these other apps, using basic Gmail features like Hangouts or Google+ will cause instability in the app or make it crash. Few have a thoughtful separation between the app itself and the browser either.
We know some people have sworn by these apps for many years. We understand that -- for a long time they were the only way to get Gmail out of the browser and use it like it should be -- as a desktop application. We agree with their goal. We just wanted to pour our hearts and souls into making that experience as dependable and detailed as humanly possible, which has been a burning passion of ours for more than a year now. We think you'll love what we've built.