Planning with friends isn't actually hard. Keeping track of a plan that lives in the wrong place is.
The group chat is a terrible filing system
Group chats are brilliant at conversation and genuinely bad at information. The date gets agreed on message fourteen, changed on message thirty-one, and by message sixty nobody's entirely sure if it's still happening on Saturday or if that got moved. Nothing in a chat is easy to find again, so the person who cares most ends up scrolling back through a week of messages just to confirm a time.
The fix isn't a better chat. It's separating the conversation from the plan itself, so the plan has one home that updates for everyone, and the chat is just for talking about it.
Shared calendars, but the right size
Not every shared plan needs the same audience. A calendar with your housemate for whose turn it is to do what doesn't need six other people cluttering it, and a group trip with five friends shouldn't be buried inside your day-to-day personal one. The useful version of a shared calendar is one you can scale to whoever's actually involved, just the two of you for a standing weekly call, or a full group for a holiday, without it all living in the same undifferentiated space.
Doodlik handles this by letting you share a calendar with one person or a whole group depending on what it's actually for, and giving each event its own space to message in. So "what time are we meeting" has somewhere specific to live, instead of getting lost forty messages up in a chat about something else entirely.
Shared to-do lists solve the "who's doing what" problem
Most group plans don't fall apart because nobody wanted to organise anything, they fall apart because everyone assumed someone else was handling the bit that actually mattered. Someone thought someone else booked the table. Nobody bought the birthday candles because three people separately assumed it was covered.
A shared to-do list fixes this in a way a chat never quite manages, because it's visible, not buried, and it shows who's already claimed what. It turns "can someone sort the cake" into an actual assigned task, rather than a message that gets a thumbs-up reaction and then never gets thought about again.
The detail that actually matters: keep it low-effort
Any system that requires everyone in the group to learn a new app properly, format things a certain way, or check in daily is a system three of your five friends will quietly ignore by the second week. The plans that survive are the ones that ask almost nothing of the people involved, add your bit, see everyone else's bit, done.
That's really the whole difference between planning with friends that feels effortless and planning with friends that feels like a part-time job: not more structure, just the plan living somewhere everyone can actually see it, instead of buried in the one place it's hardest to find again.