Later is described as 'simple iPhone reminders app that lets you schedule a reminder in natural way by choosing to remind you about something this evening, tomorrow or next morning' and is an app in the Office & Productivity category. There are three alternatives to Later for iPad, iPhone, Mac, Online / Web-based and Apple Watch. The best alternative is Apple Reminders, which is free. Other great apps like Later are Due (Paid) and Simply Remind Me (Free).
Reminders is a component of iOS and macOS that allows users to set notifications for themselves and create lists. It was a new feature in iOS 5 and OS X 10.8 "Mountain Lion". It can sync data between iOS and OS X through iCloud.
Never forget an important event again. Simply Remind Me does exactly what its name suggests: it sends you e-mail & SMS (text message) reminders for the important events in life, so you never miss a beat.