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Cozi is the veteran shared family calendar, running for over 20 years and used by millions of households. Cupla is a newer app built specifically for two, with an AI layer aimed at planning dates rather than school runs. Both solve "can we see the same calendar", and neither solves who's actually carrying the household. Here's what each one does well, and what to look for instead if the calendar was never really the problem.
Verified live 14 August 2026, checked against both apps' own App Store and Google Play listings.
Cozi is a whole-family organiser: one shared calendar, colour-coded per family member, plus shopping lists and to-dos. It's free with ads, or ad-free on Cozi Gold for US$39/yr, and it's been running long enough that grandparents, co-parents and teenagers can all reasonably be expected to know how to use it.
Cupla is built for exactly two people. It syncs Google, Apple and Outlook calendars into one colour-coded view, adds an AI assistant for planning dates and turning a "brain dump" into a plan, and layers in wishlists, key-date countdowns and a memories feed, features aimed at staying connected as a couple, not running a household of five.
The real split between these two isn't features, it's who they're built for. Cozi assumes a household: kids' activities, school pickups, multiple calendars stacked on top of each other. Cupla assumes a couple, with no concept of a third person's calendar to add, and spends real design effort on the relationship itself, not just the logistics of running it. A family with kids in school almost always needs Cozi's breadth. A couple with no kids, or kids old enough to run their own calendars, often finds Cupla's narrower, more relationship-specific focus the better fit, if a shared calendar with a nicer UI and an AI layer is genuinely what they're after.
Neither one, though, does anything with a chore once it's on the list. Cozi shows a shared to-do; Cupla lets you assign a reminder to either partner. Neither decides who should own a piece of the household long-term, weighs how much a job actually takes, or notices when the same person keeps ending up with the list. That's a different problem to the one either app was built to solve.
| Cozi | Cupla | |
|---|---|---|
| Core purpose | Whole-family shared calendar, shopping and to-do lists | Shared calendar and AI date-planner built for two |
| Fairness mechanism | None. Shared to-do list, no ownership model | None. Assignable reminders, no ownership model |
| Platform | iOS + Android | iOS 16+ and Android |
| Price | Free with ads; Cozi Gold US$39/yr removes them | Free download with in-app purchases; no official price published, one reviewer reports ~$29/yr |
| Built for | The whole family, kids included | Two adults, specifically |
A shared, colour-coded family calendar with shopping and to-do lists, used by millions of families for over two decades.
A shared calendar and AI date-planner built specifically for two, with wishlists, key-date countdowns and a memories feed layered on top.
Cozi and Cupla both solve "can we see the same calendar." Neither one touches who's actually carrying the noticing and planning behind everything on it, and that's usually the bigger problem. If one of you already knows what's coming before it's mentioned, and the other waits to be told, a better calendar won't close that gap, only redistributing the ownership will. That's what Lyven does: one clear owner per job, weighted by real effort, fused with the shopping list and meals, so it doesn't quietly slide back to whoever noticed first. Free while in beta.
See your own split, free →It depends who's using it. Cozi is built for the whole family, kids included, and has been running long enough that grandparents can use it too. Cupla is built specifically for two adults, with an AI layer aimed at planning dates and staying connected as a couple, not coordinating five people's schedules. A family choosing between them should default to Cozi. A couple with no kids, or kids old enough not to need their own calendar entries, often finds Cupla the closer fit.
No. Cozi shows a shared to-do list; Cupla has shared to-dos with assignable reminders. Neither decides who should own a given piece of the household long-term, weighs how much a job actually takes, or does anything once a task is checked off. Both are calendar and list tools first. If the actual problem in your house is who's carrying the noticing and planning, not just who can see the schedule, that's a different job, and Lyven is built for that specific case.
Cozi is free with ads; Cozi Gold removes them for US$39/yr. Cupla is free to download with in-app purchases; it doesn't publish a single price, and the most concrete figure available is a single App Store reviewer reporting roughly $29 a year, worth confirming inside the app rather than treating as official.
Yes. Lyven's free Split Check takes about two minutes, needs no account and no download, and shows how your household's jobs are actually dividing right now against what each of you thinks is fair. Neither Cozi nor Cupla measures this, since neither is built to.
Two minutes, ten cards, no sign up. See how the work in your home actually divides today, on any phone.
Find your fair →