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Comparison
Compare the ways to plan something with a date and a bill — a spreadsheet template, a single-purpose app, or CalculatorAI's Event Planner: one engine for a trip, a wedding, the holidays, a renovation, a party or a baby, with a budget that knows the difference between an estimate, a deposit and a bill.
CalculatorAI
Event Planner
One engine for every kind of event — the preset sets the categories, the lists and the checklist, and all of it can be changed
An honest budget: estimate, real cost, deposit and settled are four different things, and 'left to spend' knows which is which
A checklist that arrives with dates counted back from the day, grouped by overdue, this week and later
Guests with a head count, meal choices and dietary needs, and a seating board that is the same list seen from the room
Days to go, days left on a trip, or how long ago it was — and every checklist date is counted back from the same day.
A line is an estimate until the bill comes, a deposit until it is settled. The expected total uses the real cost where you have it and the estimate where you do not, so it never lies in either direction.
A trip's says 'check passports 90 days before'; a wedding's runs from the budget a year out to the final head count a week before. Grouped by overdue, this week, later.
Guests by table with a head count, meal choices and dietary needs; gifts from idea to wrapped; vendors from shortlist to booked; an itinerary by day with times and places; a packing list by group.
Tables with seats, who sits where, who has no seat yet — the same list as the guests, seen from the room.
The event day, every task, every payment still to make, the itinerary and the gifts on one month grid — and the two weeks ahead beside it.
AI Assistant
The site assistant reads the same figures the page shows — the countdown, planned against expected, paid and still to pay, overdue tasks, the payments due in the next two weeks — and answers with your numbers.
Proactive AI Actions
Start a plan from a sentence — 'plan a trip to Lisbon in November, budget 2,500' — for you to review and create.
Remind you of an overdue task or a payment due this week, and carry the nearest plan in the weekly digest.
Hand a calculator's result over — vacation, wedding, gift or baby budget — as a plan with its breakdown ready to add.
CalculatorAI Copilot
Site Assistant
Still to pay
$20,300 · barn due in 120 d
Overdue tasks
1 · photographer
Guests
7 of 18 confirmed
Live Product Preview
The countdown and the budget ring, what is paid and still to pay, where the money goes by category, the next two weeks of tasks and payments, and every list's progress — on a clean dashboard with no ads and no vendor marketplace.


| CalculatorAI | Spreadsheet template | Wedding / travel app | |
|---|---|---|---|
| One planner for trips, weddings, holidays, renovations | Separate files | ||
| Planned vs actual per line, with a paid state | Manual | Partial | |
| Deposits and part-payments, 'still to pay' | Manual | Partial | |
| Checklist dated back from the event day | Weddings only | ||
| Guests by table, head count, dietary, seating board | Manual | ||
| Packing list and day-by-day itinerary | Manual | Travel only | |
| One calendar of tasks, payments and days | Partial | ||
| Lines in another currency, converted | Formulas needed | ||
| Shared plan with roles for a couple or a family | Pro | Link sharing | Partial |
| No vendor marketplace, no ads | |||
| Free CSV export of everything | Rarely |
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Copy the styled table, Markdown source, or a live widget that stays up to date.
How the budget, the checklist dates and the guest count are worked out — and what the planner leaves to you.
Open the planner, pick what you are planning, and read the countdown, the budget and the checklist. Two example plans show every feature until your own replace them.
How-to guides that use this tool