family · local-first tool
Compare Children's Activity Fees with the Budget You Set
A low monthly fee can still add up when several activities bill on different dates or have one-time costs.
Compare planned and recorded activity fees by line, show total variance, and keep registration, travel, and sibling-cost assumptions in the user's notes.
What changes the result: your fees, the period you compare, and the family budget you choose.
Privacy: Calculations run in this browser tab. This tool has no input-upload, account, or AI endpoint. The site may send a page-view signal to Cloudflare; this tool does not add form entries to that signal. A draft is stored only if you choose “Save draft on this device”; that browser storage is not encrypted. Avoid identifiers or sensitive details, and delete saved drafts when finished.
Your entries
The starting rows below are fictional examples. Edit them, replace them with non-sensitive labels and values, or load the sample again. The result is not advice or a source verification.
Amount fields use the same units you enter; the app does not choose a currency. Dates are the ones you provide. Up to 100 rows per run.
Calculated output
What the calculation does
For each line, subtract the entered planned amount from the entered actual amount. The summary adds the plan and actual columns separately, then reports their difference. It does not label a charge valid or decide whether a change was authorized.
Question to keep open: Should a family prioritize the lowest fee, the calendar fit, or the activity the child most wants to attend?
Boundary: This is transparent arithmetic from user-entered assumptions, not financial, legal, accounting, tax, contract, or purchasing advice. Verify the source documents and decide with the responsible person.
Copy includes the headline, aggregate metrics, and boundary—not the row-by-row input. The CSV contains entries you choose to download. Review it before sharing.