Zeta vs Hearth Budget: Joint Banking or Joint Budgeting?
By Hearth Team · July 11, 2026
Zeta is a free app for couples and families whose core product is a joint banking account, with budgeting and bill-splitting features layered on top. Hearth Budget is an envelope budgeting app for couples that sits on top of whatever bank accounts you already have, joint, separate, or a mix of both.
That difference sounds subtle, but it changes everything about which one you should pick. One is asking you to move your money. The other is asking you to plan it.
Where Zeta shines
The joint account itself. If you and your partner have decided you want a shared account, Zeta makes opening one genuinely easy. You get a joint account built for two people from day one, with both names on it and both of you seeing the same balance, no awkward trip to a bank branch required.
Free, with no ads to speak of. Zeta's family-focused accounts don't charge monthly fees at the time of writing, and the app doesn't lean on an ad model the way some free couples apps do. For a banking product, that's a clean deal.
Thoughtful couples touches. Shared bill tracking, the ability to split expenses, and visibility settings that respect the fact that some couples combine everything while others keep a little privacy. Zeta clearly thought about how two people actually handle money together, which puts it ahead of most banks.
Where Hearth is different
Zeta answers "where should our shared money live?" Hearth answers "what should our money do this month?" Those are different jobs.
Hearth is the budgeting layer, not the bank. Hearth doesn't hold your money and doesn't ask you to open anything new. You keep your existing accounts exactly as they are, and Hearth becomes the shared plan on top. That matters because many couples don't actually want to merge accounts, and plenty of research on happy couples suggests there's no single right answer. We wrote about that tension in joint or separate bank accounts. With Hearth, "keep your finances separate" and "budget together" are not in conflict.
A real method: envelopes. Zeta's budgeting features are light, more of a companion to the banking product than a system. Hearth is built entirely around envelope budgeting: you and your partner give every dollar a destination at the start of the month, then spend against shared envelopes you can both see in real time. When the dining envelope shows $40 left, you both know it before dinner, not after the statement.
Bank sync with a review inbox. Most apps make you choose between automatic tracking (convenient, but you stop paying attention) and manual tracking (mindful, but tedious). Hearth's bank sync, currently in beta, connects US and Canadian banks through Plaid and lands transactions in a shared review inbox. Nothing touches the budget until one of you confirms it, so automation never silently miscategorizes anything. Once a merchant rule exists, confirming takes one tap, and refunds are handled too. You get the convenience of sync while staying the one who decides.
Everything is shared by design. Both partners live in the same nest with the same envelopes and the same numbers. There's no primary user. Add streak tracking for daily logging, receipt scanning that reads line items, and spending analysis, on both iOS and Android.
Price
Zeta: free at the time of writing. The account is the product, so Zeta earns money the way banking products generally do rather than by charging you a subscription.
Hearth: free to start. Hearth Plus is $4.99 per month or $34.99 per year, and that's what unlocks bank sync with the review inbox.
If price is your only criterion, Zeta wins, since a free bank account beats a paid budgeting app. But it's a slightly odd comparison, because you can also use Hearth's core envelope budgeting for free and only pay if you want sync. Full details are on our pricing page.
Which should you pick?
Pick Zeta if you actually want a new joint account. That's the honest heart of this comparison. If you and your partner have decided to merge some or all of your money and you'd rather do it in an app built for couples than at a traditional bank, Zeta is a strong choice and its budgeting features may be all you need.
Pick Zeta if your main friction is logistics, not planning. Splitting bills, moving money between two people, seeing a shared balance: those are banking problems, and a banking product solves them best.
Pick Hearth if you're happy with your current banks. Switching banks is a chore, and if your accounts work fine, the missing piece is probably a shared plan, not a new place to keep the money.
Pick Hearth if you keep separate accounts on purpose. Hearth lets two people with two (or five) separate accounts still run one budget together. You don't have to merge anything to be on the same page.
Pick Hearth if budgeting is the actual goal. Light budgeting on top of a bank account tends to drift into passive tracking. Envelopes force the useful conversation: what do we want this month to look like? If that conversation tends to go sideways in your house, our post on how to budget as a couple without fighting can help.
Some couples will sensibly use both: Zeta for the shared account, Hearth for the plan. They solve different problems, and neither replaces the other.
Start with the plan
Before you open any new account, it's worth knowing what you'd want the money to do once it's there. Our free envelope budget planner lets you and your partner sketch a month of envelopes in a few minutes, no signup required. If the plan clicks, Hearth is where the two of you can live in it every day.