For all of its hype about freeing gmail from the browser, all this app appears to be at heart is a rebranded copy of chrome.
the command line doesn’t lie - comparing Kiwi and an example google chrome process from the command line :
501 18107 18102 4004 0 31 0 2655612 12536 - S 0 ?? 0:00.09 /Applications/Kiwi for Gmail Lite.app/Contents/Frameworks/Kiwi for Gmail Lite Helper.app/Contents/MacOS/Kiwi for Gmail Lite Helper --type=gpu-process --channel=18102.0.746882857 --no-sandbox --lang=en-US --user-agent=Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_3) AppleWebKit/600.6.3 (KHTML, like Gecko) Version/8.0.6 Safari/600.6.3 --supports-dual-gpus=false --gpu-driver-bug-workarounds=13,24,29,40,41,45,52,58 --gpu-vendor-id=0x10de --gpu-device-id=0x06e4 --gpu-driver-vendor --gpu-driver-version --lang=en-US --user-agent=Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_3) AppleWebKit/600.6.3 (KHTML, like Gecko) Version/8.0.6 Safari/600.6.3’
501 18403 18399 4004 0 31 0 2758368 31512 - S 0 ?? 0:00.43 /Applications/Google Chrome.app/Contents/Versions/49.0.2623.112/Google Chrome Helper.app/Contents/MacOS/Google Chrome Helper --type=gpu-process --channel=18399.0.913365917 --supports-dual-gpus=false --gpu-driver-bug-workarounds=17,31,36,48,50,54,61,67,70 --gpu-vendor-id=0x10de --gpu-device-id=0x06e4 --gpu-driver-vendor --gpu-driver-version
George Law about Kiwi for Gmail Lite