There's always one. The group's booked, the spreadsheet's half-made, and one person flatly refuses to create yet another account for a four-day trip.
They're not being difficult. Every app wants an email address, a password and a verification code, and most people have quietly decided they're done handing those out for something they'll use once.
The good news: you don't need accounts to split expenses properly. Here's how, and what you're actually giving up.
Why the signup wall is worse than it looks
The problem isn't the thirty seconds of typing. It's what it does to the group's data.
When one person won't sign up, someone else ends up entering expenses on their behalf. That person becomes a bottleneck — every taxi and round of drinks has to route through them, they're the only one who knows the real state of the ledger, and if they get bored on day three, tracking stops entirely.
Groups don't abandon expense apps because the app is bad. They abandon them because participation was uneven from the start.
The options that don't need accounts
A shared spreadsheet
Still the most common answer, and it works. A shared sheet needs no app install and everyone understands it.
What it costs you: it doesn't do debt simplification, so you'll settle far more transfers than necessary. It doesn't handle multiple currencies without you writing formulas. And it needs a connection — a cloud sheet is unusable on a mountain, which is where a lot of shared spending happens.
Apps with a group code
Several apps let one person create a group and share a code or link. Others join by tapping the link — no email, no password. The group lives on the devices that have the code.
This is a genuinely good model for trips. The trade-off is that with no account tied to the data, there's no server-side backup. If the phones holding the group are lost, so is the group.
Guest mode
Some apps let you use everything locally without signing up, and offer to create an account later if you want sync. This is the best of both: no friction now, no dead end later.
The thing to check before committing is whether upgrading actually keeps your data. In some apps, "create an account" starts you from an empty state, which means a week of logging is gone. In Splitano, a guest account can be upgraded to a full one and your existing groups and expenses come with you.
Fully offline groups
Worth separating from "works offline." Many apps queue changes locally and sync when a connection returns — useful, but the data still lives on a server eventually.
A genuinely offline group never touches a server at all. It's created on your device, stored on your device, and stays there. Nothing is uploaded, so there's nothing to leak, subpoena or breach.
That's the right model for a group where privacy is the point, or where you simply won't have a connection. It's the wrong model if you need several people editing the same ledger in real time — for that, someone has to hold the shared copy.
What you're actually trading away
Being straight about this, because the downsides are real and they bite at the worst moment.
No backup. This is the big one. No account means no server-side copy. Lost phone, dead phone, factory reset — the group is gone. Mitigate it by exporting to CSV, Excel or PDF at the end of each day or each trip, and putting the file somewhere that isn't the phone.
No real-time sync between people. Everyone can't see the same live ledger. One person holds the record and shares a summary, or each person tracks what they paid and you reconcile at the end.
No cross-device access. Offline data lives on one device. No web view, no tablet, no "check it on my laptop later."
No recovery. With an account, a forgotten password is an email away. Without one, there's no support desk that can restore anything, because nobody ever had a copy.
A practical setup that works
For a trip where not everyone wants to sign up:
- One person creates an offline or guest group on their device. Thirty seconds, no email.
- Add everyone as participants by name. They don't need the app — they just need to exist in the group so their share is tracked.
- That person logs expenses as they happen. Fifteen seconds each, done at the table.
- Export a summary every evening and post it in the group chat. This solves the transparency problem — everyone sees the running state without needing the app — and doubles as your backup.
- At the end, export the final PDF, let debt simplification calculate the minimum transfers, and post that.
Steps 4 and 5 are what makes this work. The nightly export means one person holds the data but nobody's in the dark, and if that phone dies you've lost a day rather than a trip.
When you should just make an account
There's no prize for avoiding signup. Create accounts when:
- It's ongoing, not a one-off. A flatshare tracking rent and bills for two years needs backup and multi-device access. The signup cost amortises to nothing.
- Several people need to add expenses. Shared households where everyone buys groceries need everyone logging directly. Routing it through one person will fail.
- The amounts are significant. If the ledger runs into thousands, "the phone died" is an expensive way to learn about backups.
- You want it on more than one device.
The point
The right answer depends on the group, not on principle. A weekend trip with four people, one of whom hates apps? Offline or guest mode, with a nightly export. A three-year flatshare with rotating rent and utilities? Accounts, sync, recurring expenses.
What shouldn't happen is a group giving up on tracking entirely because one person wouldn't sign up. That's how you end up doing the maths from memory in a group chat two weeks later, which is worse for everyone — including the person who refused.
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