LiuNengAI Subscription Cost Calculator

A free, no-signup browser calculator for people choosing subscription tools. Enter two monthly or annual quotes in Chinese yuan (CNY) and expected active days per month to compare monthly equivalents, 12-month totals and cost per active day. Copy the results and tool link or download a text summary. English and Chinese interfaces; MIT open-source single-file HTML downloads for offline calculation. No AI calls, live-price lookup, currency conversion, feature comparison or refund modeling. Inputs stay in the browser, are not uploaded or stored, and the English calculator loads no analytics or external scripts. I operate LiuNengAI; this description was AI-assisted. The parent website separately offers paid personal-account ChatGPT subscription recharge as an independent service, not OpenAI; using this calculator requires no purchase. Free editorial consideration only, with no fee, commission, gift or reciprocal-link commitment.