Toolkit
Six calculators that run in the tab and never phone home.
No upload, no account, no analytics on what you type. The two on top are open to anyone. The four below need a pass, because they encode judgement rather than arithmetic.
Margin and true cost
Every fee between the sale price and your bank. The return line is the one people leave out.
Break-even ROAS
The number your ad account has to beat before anything else in the business matters.
Listing limiter
Character limits for four platforms at once, plus the wording and characters that get a listing suppressed rather than ranked.
Suppression risk scan
Twelve things that hide a live listing from search. Tick what is true right now; the weighted score tells you what to fix first.
Stack pricer
Tick what you actually pay for. The number on the right is the honest one — annual, not monthly.
Return impact
A 6% return rate does not cost 6%. It costs double shipping plus the share of stock that cannot be resold.