What are some alternatives?
When comparing Intervals and Apple Notes, you can also consider the following products
Bitrix24 - Bitrix24 is a free (for small businesses) social enterprise platform. It is a united work space which handles the many aspects of daily operations and tasks. Create your own social intranet in minutes!
Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.
HarmonyPSA - HarmonyPSA - Professional Services Automation (PSA) for IT Businesses
OneNote - Get the OneNote app for free on your tablet, phone, and computer, so you can capture your ideas and to-do lists in one place wherever you are. Or try OneNote with Office for free.
Avaza - Beautiful Projects, Timesheets, Expenses, Quotes & Invoices for Small Businesses
Simplenote - The simplest way to keep notes. Light, clean, and free. Simplenote is now available for iOS, Android, Mac, and the web.