If you need software to handle a flood of notifications and messages, Sixty is worth a look. It offers tools for managing email, creating customizable itineraries and sending notifications when travel plans change at the last minute. The service runs in the background, processing incoming messages and invitations and interrupting you only when it has something important to say. That can help you avoid distractions and get more out of your time.
Another good option is Courier, a notification application programming interface that lets developers send notifications to people through a variety of channels like email, SMS and push notifications. It's integrated with more than 50 service providers and can handle a range of notification use cases, so it's a good choice for businesses and startups trying to update their notification technology without too much programming work.
If you want a more all-purpose messaging tool, check out Texts. The app collects messages from services like iMessage, WhatsApp and Slack into a single inbox. It uses AI to try to boost your productivity with features like summaries of conversations and draft replies, and it's designed to offer a fast, private, customizable messaging experience.
Last, SaneBox is an AI-powered email service that tries to route incoming messages into folders you'd like to see and hide ones you don't care about. That can free up time for the messages that matter. With features like BlackHole to block messages from people you don't want to hear from and Snooze to delay messages until later, SaneBox can save you hours a week on email.