Kumo is a web browser with a UI focused on portrait-mode touchscreen mobile devices. It is optimized to run on low-end hardware with a limited battery life.
Ladybird Alternatives
Ladybird is described as 'Open-source web browser currently in development, with an alpha version expected to launch in 2026' and is a popular Web Browser in the web browsers category. There are more than 50 alternatives to Ladybird for a variety of platforms, including Windows, Mac, Linux, Android and iPhone apps. The best Ladybird alternative is Mozilla Firefox, which is both free and Open Source. Other great apps like Ladybird are Brave, Vivaldi, LibreWolf and Helium Browser.