Tap on the lovely icon to hop to the last active tab! Surprisingly its the only one available for iOS and iPadOS - you know why? Other macOS plugins are not using the latest technology so that they cant work under iOS & iPadOSs stricter memory restrictions - ReTab is simple & light, which means it uses minimum memory and wont crash - it is made by ourselves, for ourselves. We love it and hope you do too!
Why default to Cmd+E as keyboard shortcut? (and yes its customizable in Settings page!) It should be easily achievable within the left hand and most other keys are commonly used, and Cmd+E is only used for disk ejection or Use Selection to Find, which people rarely use so it makes the perfect sense ;)
Want it on macOS too? Its bundled together :]