Key takeaways
- Most popular relationship apps are built for two people to use together, which requires both partners to opt in.
- That assumption doesn’t fit everyone: someone who wants to improve how they show up doesn’t always have a partner who wants to use an app too.
- Paired (daily quizzes and games) and Lasting (therapy-based sessions) are both built for joint use, and Between combines private messaging with a shared relationship timeline.
- By Heart is built for one person, privately, and doesn’t require a partner to know it exists or participate.
- The right choice depends on whether both partners are equally ready to opt in, or whether one person wants to start on their own.
Search for “best relationship apps” and nearly every result assumes the same thing: two people, both willing, both downloading, both showing up. That’s a fine assumption when it’s true, and it quietly rules out a lot of people for whom it isn’t, whether a partner isn’t interested in an app, doesn’t know one exists yet, or the two of you just aren’t at a point where a joint activity feels right. This is a fair look at what the popular options actually do, and where the shared-use assumption breaks down.
What most relationship apps assume
The bulk of the category is built around joint participation: both partners create accounts, both partners open the app, both partners do the activity together or compare answers afterward. That’s a reasonable design if the goal is a shared experience, something a couple works through as a pair. It becomes a limitation the moment only one person wants to start, which is a common and completely normal place to be, not a sign anything is wrong.
A fair round-up
Paired is built around daily questions, quizzes, and games meant to be answered by both partners and compared, with content spanning communication, intimacy, and general connection. It works well for a couple that wants a shared, playful daily habit and is comfortable both showing up for it.
Lasting takes a more structured, therapy-informed approach: guided sessions and assessments designed by relationship professionals, built to be worked through together. It suits a couple looking for something closer to self-guided counseling, and it’s explicit that it’s meant to be used jointly rather than by one partner alone.
Between combines private messaging with a shared photo timeline and relationship milestones, closer to a dedicated communication space for a couple than a habit-building tool. It’s a strong option for a couple that wants one shared place for daily contact and memory-keeping, again assuming both people are actively using it.
All three are genuinely useful for what they’re built for. None of them are designed for the person trying to improve how they show up while their partner isn’t using anything at all. That’s not a flaw in any of them, joint-use is a reasonable design choice for a joint activity, but it does mean the category as a whole tends to leave out anyone starting from a different position, whether that’s a partner who’s skeptical of apps in general, a relationship still early enough that a shared account feels premature, or simply one person who wants to work on their own habits first.
Where By Heart fits
By Heart starts from the opposite assumption: one person, using it privately, with no requirement that a partner knows it exists or opts into anything. It holds what one person has learned about a partner (preferences, important dates, small details worth remembering) and nudges toward one small, specific action a day, without a shared account, joint quiz, or synced activity anywhere in it.
This isn’t a claim that private use works better than joint use. It’s a different starting condition: some couples are ready to do something together, and some situations have exactly one person ready to start, at least for now. By Heart exists for the second case, which most of the category doesn’t build for at all.
Which kind actually fits your situation
If both partners are equally interested in a shared activity, Paired, Lasting, or Between are all reasonable, well-built options, and picking between them mostly comes down to whether daily games, structured sessions, or shared messaging fits the relationship better. If only one person is ready to start, or a partner isn’t interested in downloading anything, that’s exactly the gap something like By Heart is built to sit in: useful on its own, with nothing required from anyone else.
That’s a fine assumption when it’s true, and it quietly rules out a lot of people for whom it isn’t.
Neither category is inherently better. The honest answer is that the right app depends on where both people actually are, not on which one has the most features.