The Schoeller Family’s apps

Trip Cost Calculator

Estimate the full cost of a family trip.

The full cost of a trip before it is booked, including the parts that get discovered later - transfers, bags, parking, eating out, the activities that were assumed free.

What a v1 does5 features
  • Every category costed, including the ones people forget
  • Per-person and per-family totals
  • Real prices for the destination and dates
  • Comparison across two or three options
  • A budget to track actual spending against while away

The market

Adjacent market
$1Min annual revenue at Wanderlog, reached in June 2024

Hopper earns from bookings rather than subscription and TripIt sells a paid tier. Trip planning monetises through transactions more reliably than through monthly fees, and this charges $5 per trip costed rather than a monthly fee.

Where these numbers come from
CompanyEarnsReachSource
HopperMonetises bookings, not subscriptionNot publishedModel · Expedia partnership announced Mar 2025
Wanderlog$1M revenue milestoneNot publishedCompany-stated, June 2024
TripItPaid Pro tierNot publishedPublished pricing

Why this audience

Family trips are the largest discretionary purchase most of these households make in a year, and the cost is guessed at until the credit card statement arrives. This audience is already trying to work out whether a trip is doable. A full number before booking is the answer to a question they are actively asking.

Before it can launch

No licence, certification or data agreement stands between this and a launch — app-store review and an ordinary privacy policy aside.

What it earns

Drag me Every figure recalculates as you go.

Paying users1,000

0.043% of 2.3M followers · capped at 50,000

Price per use$5

Opens on the price this idea was costed at, $5.

Purchases per user per year3

A quarter is one purchase every four years; twelve is monthly.

1,000 paying — 0.043% of 2.3M followers — × $5 × 3 purchases a year = $15,000 a year

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Revenue a month$0123456789,012345678901234567890123456789
Over twelve months$01234567890123456789,012345678901234567890123456789

Fifty thousand paying users is the ceiling every one of these pages is drawn against, not a forecast. It opens at a thousand, the bottom of the range, so the first figures you see are the modest ones. What the cap buys is comparability: the same range on every app, and the percentage of the audience it takes as the number that moves.

Is this the one for your audience?

We fund it, build it, and run it. You bring the audience and take a share of the revenue. Nothing to pay and nothing to build.

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