When comparing WeekCal vs 24me, the Slant community recommends WeekCal for most people. In the question“What are the best calendar apps for iPhone?” WeekCal is ranked 9th while 24me is ranked 16th. The most important reason people chose WeekCal is:
Week Calendar includes templates, which are files containing one or more events that can be duplicated from week to week. With each event, information such as address, time, or duration can be copied as well. This comes in handy for routine events like work, school, or exercise.
Specs
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Pros
Pro Templates
Week Calendar includes templates, which are files containing one or more events that can be duplicated from week to week. With each event, information such as address, time, or duration can be copied as well. This comes in handy for routine events like work, school, or exercise.
Pro Dropbox attachments
Week Calendar supports dropbox file attachments in collaborative calendars so other people are able to quickly see files relating to an event.
Pro Action menu
With the action menu, users can use up to 40 kinds of automated actions.
Pro Easy to move events
Just like with apps on the home screen, events on Week Cal can be moved with a tap and hold gesture.
Pro Quickly see relevant info
Week Calendar displays a day's events just by tapping the date. The data can be tapped directly from year view.
Pro Custom color
Best thing is being able to set different colors, if you have multiple events during the day it really helps to set different colors to easily get an overview for school lessons as an example.
Pro TextExpander support
Pro Dense week view
Pro Integrates with Android and iOS
The app has an Android version and an iOS version that syncs with the native reminders app.
Pro Combines 4 apps into 1
The app lets you manage your notes, calendar, personal accounts, and to-do list from one place.

Pro Cuts down on procrastination
The self-proclaimed "assistant for everyone," 24me helps people break the cycle of procrastination and willpower exhaustion by automating things they may have otherwise put off until later.
Cons
Con New PRO subscription
Pro subscription needed to get same functionality that existed for previously paid customers.
Con Issues with repeating events
When making templates, multiple repeating events can't be duplicated from within the same file.
Con No desktop or browser client
