The notebook · August 5, 2026 · 6 min read

By The Reunion Fund team

A reunion planning app, or a spreadsheet? Here is where the spreadsheet breaks.

Most reunions start in a spreadsheet and a group chat, and that is correct. Here are the four points where that setup breaks, and how to tell if yours has.

Almost every reunion starts the same way: a spreadsheet, a group chat, and one person who said yes in a moment of enthusiasm.

That is the right way to start. A spreadsheet costs nothing, everyone can read one, and for a small gathering it will carry you all the way to the day. Anyone who tells you that you need software to invite forty people to a park is selling something.

But there is a point where that setup stops holding, and it is a fairly specific point. Knowing where it is saves you from switching too early, which wastes money, and from switching too late, which is how reunions end up cancelled in August.


First, the honest answer: when a spreadsheet is enough

You do not need a tool if most of this describes your event:

Spreadsheet is fine
GuestsUnder about 30
OrganizersOne person, maybe two
MoneyCollected at the door, or not at all
VenueA park, a backyard, someone's house
TimelineUnder three months out
DecisionsMade by one person who is allowed to just decide

If that is your reunion, stop reading and go book the pavilion. Genuinely. The rest of this article is about what happens when two or three of those rows stop being true at once.


The four things that break, roughly in this order

1. The spreadsheet quietly stops being one spreadsheet

This is the first crack and the easiest to miss.

Someone downloads a copy to work on the seating. Someone else pastes the guest list into a message so people can check their spelling. A third person makes their own tab because the first one was getting messy. Within a month there are four versions and the only person who knows which is current is the person who made it.

The symptom is a specific sentence, and you will hear it in the group chat: "wait, which list is the right one?"

Nothing has gone wrong yet at this stage. But every decision from here forward is being made on data that somebody has to verify first, and verification is unpaid work that lands on one person.

2. One person becomes the bank

The moment you collect a single dollar in advance, the structure of your reunion changes.

Someone has to be the payment handle in the announcement post. Someone has to front the venue deposit before any money has come in. That person is now holding other people's money in a personal account, tracking it in a document only they can see, and answering "did you get my $60?" at eleven at night.

It works, right up until one of three things happens: they get busy and the ledger drifts, they need to be reimbursed and there is nobody to approve it but themselves, or somebody asks a pointed question in the group chat and there is no clean way to answer it.

This is the failure that ends reunions. Not fraud. Almost never fraud. Just one person carrying a job that should never have been one person's, until they stop wanting to carry it. The longer argument is here.

3. Nobody knows the real headcount

A group chat produces enthusiasm, not commitments. Forty people say "I'm in!" and twelve of them mean it in a way that survives contact with a Saturday in July.

The problem is that caterers and venues do not accept enthusiasm. They want a guaranteed number, usually seven to fourteen days out, and you pay for that number whether or not it shows up. Guess high and you eat the difference. Guess low and there are not enough chairs.

Spreadsheets can hold a headcount. What they cannot do is keep it current without somebody manually reconciling a chat thread, an email folder, and three text messages every few days. Here is how to get a number you can actually cater against.

4. Decisions leave no record

Six weeks out, someone asks why the reunion is at the hotel instead of the country club. The answer exists. It was decided in a group chat in March, based on a price nobody wrote down.

Without a record, every settled question can be reopened by anyone who missed the thread, and the person who made the decision has to defend it from memory. On a committee of six, this is the thing that turns pleasant volunteers into people who stop replying.


The line, stated plainly

You have crossed it when two or more of these are true:

  • You are collecting money before the event
  • More than two people are making decisions
  • You have more than about 50 guests
  • Your venue requires a guaranteed count
  • The event is more than six months out

One of these on its own is manageable. Two together generate the coordination overhead that a spreadsheet was never built to absorb.


What to look for, if you do switch

Most tools in this space are RSVP tools with extra features bolted on. That is fine if invitations are your problem. It is not fine if money is your problem, and for reunions, money is usually the problem.

A short checklist:

Does more than one person have real access? Not "can view," but can act. If your tool has one admin and five spectators, you have rebuilt the spreadsheet with better fonts.

Where does the money actually sit? This is the question almost nobody asks. Some tools pool contributions and pay them out to you later, which means a third party is holding your class's money on a schedule you do not control. Ask directly, and be suspicious of a vague answer.

Can money move without a second person agreeing? If one person can release funds alone, the tool has not solved the problem in point 2 above. It has just given it a nicer interface.

Does the headcount update itself? If you are still exporting a list and re-counting it by hand, you have bought a form, not a tool.

What does it cost when the event is over? Reunion planning is bursty. You need something for four months, then nothing for five years. A monthly subscription that assumes continuous use is priced for a different customer.


What switching actually costs you

Three things, and they are worth naming honestly:

  1. An afternoon of setup. Rebuilding a guest list and a budget in a new place is real work.
  2. A short adjustment period. Some of your committee will keep replying in the group chat out of habit for two weeks.
  3. Possibly money. Purpose-built reunion tools generally run somewhere between a one-time fee per event and roughly $10–$40 a month, with per-guest ticketing platforms costing considerably more at scale.

Against that: you stop being the single point of failure, and the reunion stops depending on one person staying enthusiastic for eleven straight months.


The short version

  1. A spreadsheet is genuinely fine for under 30 guests, one organizer, no advance money.
  2. It breaks at four points: version drift, one person becoming the bank, a headcount nobody trusts, and decisions with no record.
  3. Two or more of those at once means you have crossed the line.
  4. When evaluating tools, ask where the money sits and whether one person can move it alone. Most tools cannot answer either question well.
  5. Budget an afternoon to switch. Do it before you collect money, not after.

If the money part is what is breaking: Reunion Fund gives a committee one shared workspace (tasks, RSVPs, budget, documents and chat) and handles contributions differently from most tools. Money is charged straight to the organizer's own Stripe account, so Reunion Fund is never in the flow of funds and never holds your class's money. Releasing anything from a shared fund takes two committee approvals, and the person who asked cannot be one of them. The shared fund is off by default; plenty of reunions never turn it on. The free plan covers two active events with up to 30 guests each and three co-organizers. Start planning at reunionfund.com.

Planning one yourself?

Keep the plan and the money in one place

Reunion Fund gives your committee a shared workspace for tasks, RSVPs and the budget. If you collect contributions they go straight to the organiser's own account. Releasing them takes two committee approvals, so nobody handles the group's money alone.

Start planning for free
WeeBie AIAssistant
Ask me anything!
    Reunion Planning App vs Spreadsheet: When to Switch