Changelog
2026-07-19
v1.2.0 - Native-language trust and editorial shell
Added market-written Spanish, French, and German pages for About, Privacy, Terms, Contact, Disclaimer, and this changelog. Each published family now has a canonical URL, six hreflang signals including x-default, breadcrumb structured data, sitemap coverage, a substantive-content floor, and a 375-pixel browser check. Thin existing English and Traditional Chinese trust pages were expanded when the same audit exposed a gap.
v1.1.0 - 29 decision topics in five languages
Completed 29 editorial topics in English, Traditional Chinese, Spanish, French, and German: 145 structured variants. These are not bulk translations. Market terms, contracts, authorities, costs, examples, and source choices are written for each audience. Every guide includes a formula, assumptions, worked example, limitations, FAQ, and sources; 35 interactive decision calculators are embedded across the library.
- Financing, BNPL, upfront fees, and real annual borrowing cost.
- Subscriptions, memberships, cards, rewards, and spending caps.
- Housing, vehicles, commuting, remote work, and the value of time.
- Repair, warranties, energy, consumption, food, wages, and inflation.
v1.0.0 - WorthCalc launch
First public release of WorthCalc, with eight free, browser-based calculators that answer one question: is it actually worth it?
- Installment True APR Calculator — the real interest rate behind "0%" installment and BNPL plans.
- Subscription Audit Calculator — total subscription cost per month, year, and 5 years.
- Costco Membership Calculator — break-even spend for Gold Star and Executive tiers.
- EV vs Gas Car TCO Calculator — total cost of ownership and break-even year.
- Rent vs Buy Calculator — mortgage, appreciation, and invested down payment vs. renting.
- Commute Cost Calculator — car, transit, rideshare, and bike compared side by side.
- Latte Factor Calculator — what a daily habit costs, and its future value if invested.
- Cashback Break-even Calculator — annual-fee card vs. a no-fee 1% baseline.
Also included at launch: bilingual English and Traditional Chinese pages, four supporting guides on installments, subscriptions, warehouse-club math, and rent vs. buy, plus a fully client-side privacy model — no calculator input ever leaves your browser.
How to read this log
A version groups a visible capability. A focused correction may update a formula, source, accessibility behavior, review date, or metadata without changing a calculator's purpose. Traffic and revenue figures are never inserted here unless they come from documented measurement. Report a regression with the URL, inputs, displayed result, and expected result.