Nextbox vs Marco

Nextbox makes makes it quick and easy to maintain inbox zero. You don't have to be a superhuman to rock your email any more. Just scroll through your feed and emails are marked read as you see them. Pin the ones you want to follow up on later and the rest will drop below them when your feed refreshes.

All your email accounts, one fast inbox. Marco is a fast, privacy-first email app that unifies Gmail, iCloud, Outlook, Yahoo, and IMAP accounts into one clean inbox. Works offline, syncs instantly, and runs natively on iPhone, iPad, and Mac. Key features: • Unified inbox for all accounts – Gmail, iCloud, Outlook, Yahoo, Exchange, and any IMAP provider in one place. • Native Apple experience – Built for iPhone, iPad, and Mac with full keyboard shortcuts and system integration. • Works offline – Read, search, and compose without a connection. Everything syncs when you're back online. • Privacy-first email – No tracking, no data selling, no ads. Your emails stay yours. • Instant speed – Opens, searches, and sends faster than default mail apps. • Smart email views – Filter by account, label, or sender. Zero inbox clutter. Tired of slow, bloated email clients? Marco is the lightweight, private alternative to Spark, Superhuman, and Apple Mail — with multi-account support, offline access, and no subscription required.