Decide what you’re solving first

These apps look similar and solve different problems. Before comparing features, work out which sentence is yours:

“We keep double-booking / I forget what you told me” → you want a shared calendar
“We never manage to find an evening” → you want shared availability, which is a different thing
“We don’t talk enough about the week ahead” → you want a shared routine, and almost any tool will do if you keep it

Most couples reach for a calendar when their problem is the second one. That mismatch is why so many shared calendars end up abandoned.

The options

Google Calendar (or Apple’s shared calendars)

Free, already on both your phones, and genuinely good at what calendars do: events, reminders, invitations, travel time. Share a calendar or grant each other visibility and you’re done in five minutes.

Good for: not double-booking, and seeing what the other one is committed to. Weak at: free time. It shows what you’re busy with; the gaps are unlabelled and only you can read them. See why sharing your calendars doesn’t help.

Pick it if: your problem is coordination, not availability. Which for a lot of couples it honestly is — and then you don’t need another app.

Cupla

A calendar built specifically for two, pulling in both your existing calendars and showing them side by side, plus shared tasks and a bit of date-planning. Free tier with a paid upgrade.

Pick it if: you want the Google-calendar picture but merged and readable, without building it yourself.

Between

One of the long-running couple apps: a private shared space with chat, photos, a timeline of your relationship, and a calendar among it. Free with in-app purchases.

Pick it if: you want the shared space more than the scheduling — memories, photos, a private feed. The calendar is one feature among many rather than the point.

Paired / relationship apps generally

Daily questions, prompts, quizzes. Worth naming because couples often try one when the real complaint is “we never see each other” — and these don’t touch that. They’re for attention, not for hours.

Pick it if: your problem is conversation, not calendar.

Hours for Two (ours)

Not a calendar. You paint the hours you’re free, your partner paints theirs, and the app shows the overlap — then you propose something inside it, and they accept, decline or counter. Recurring windows, favours (small asks that aren’t dates), reminders, six languages. Free, no account, no email: you pair with a six-character code.

Weak spots, honestly: it doesn’t import your existing calendar and doesn’t intend to, there’s no chat, no photos, no Android build yet (iOS and web today), and it’s strictly two people — no families.

Pick it if: the sentence you recognise is “we never manage to find an evening”.

Side by side

	Hours for Two	Cupla	Between	Google Calendar
Shows shared free time	Computed for you	From merged calendars	No	No
Imports your calendars	No	Yes	No	It is one
Account required	No — a pair code	Yes	Yes	Yes
Chat / photos	No	No	Yes	No
More than two people	No	No	No	Yes
Price	Free	Free + paid tier	Free + purchases	Free

What we’d actually tell you

Already living in Google Calendar and mostly need not to clash? Share the calendars and stop reading. You don’t need a fifth app.

Want everything merged and prettier? Cupla.

Want a private shared space with memories in it? Between.

Keep failing to find an evening despite wanting to? That’s the one we built for, and it’s the one a calendar structurally can’t fix, because a calendar stores the busy half.

Nothing stops you running two: a calendar for what’s agreed, and something else for finding the time. That’s the split we’d recommend even if you don’t use ours.

TL;DR

Coordination and availability are different problems; most couples pick the wrong tool
Google or Apple shared calendars are free, already installed, and fine for not clashing
Cupla merges two calendars; Between is a shared space; Paired is about conversation
Hours for Two works on free hours instead of busy ones, with no account
A calendar for what’s decided plus something else for finding the time is a good split