LiuNengAI Subscription Cost Calculator

A monthly price and an annual price can look difficult to compare when you use a service only on some days. LiuNengAI Subscription Cost Calculator puts two entered quotes on the same twelve-month basis and shows their cost per active day. It is a small browser utility for individuals, freelancers, students, and small teams considering a subscription, rather than a subscription marketplace or a financial advisory service.
Name two plans, enter the payment amount for each, and select whether each quote is monthly or annual. Set the number of days you expect to use the service in a month. The tool compares the available billing choices and displays the resulting monthly, annual, and per-use-day amounts. It assumes twelve continuous months and unchanged prices; it does not model pausing a subscription, midyear cancellation, promotional expiry, taxes, refunds, interest, or exchange rates. A cheaper total does not mean that two plans provide identical features.
For a fictional example, a CNY 99 monthly plan costs CNY 1,188 over twelve months. At twenty active days per month, its cost per active day is CNY 4.95. At five days, that becomes CNY 19.80. These are demonstration inputs, not current merchant prices. Users must enter their own verified quotes. The current interface labels amounts in CNY and does not convert currencies or fetch live prices.
The English page is free and requires no account. Calculation runs in the browser without sending the entered prices to a server. This calculator page has no analytics or external JavaScript. Users can copy a comparison with the tool link or save the single HTML file for offline calculation. Navigation links to other pages still require an internet connection. The public source repository contains English and Chinese interfaces under the MIT license.
This is a maker submission prepared with AI assistance, as was development of the tool. LiuNengAI independently operates the site and also offers a separate paid ChatGPT recharge business. The calculator can be used without purchasing anything. LiuNengAI is not affiliated with OpenAI. Other pages have their own data handling notices; the calculator's local processing claim is specific to this tool.