About Us
Jiamei Hub is a free collection site for Chinese- and English-speaking users. It brings two kinds of content together — practical calculators and app download guides — so people can get straight to what they need.
What the site contains
The site is made up of two independent modules:
Module 1 · Data tools (MaterialCalc)
A free module of home-improvement material estimators, currently 10 calculators:
- Paint and exterior paint calculators
- Tile and flooring calculators
- Concrete and drywall calculators
- Mulch, sod and gravel calculators
- Roof shingles calculator
Every tool shows its formula and a complete worked example, builds in a waste allowance that matches common trade practice, and works in both metric and imperial units. You can browse them all on the data tools home page.
Module 2 · Entertainment (comic app download guides)
Informational download pages for popular comic apps, covering Android, iOS, APK packages, installation guides and version notes. See CopyComic and MangaFrog3.
One important clarification: we are not the official site of these apps, and we do not host or store any installer files. We only organise publicly available information and point to where it can be found; the installers themselves are provided by third-party platforms.
How we approach content
- Transparent formulas: conversion formulas, waste percentages and coverage values are visible on the page so you can check the maths yourself.
- Sourced data: coverage figures are based on manufacturers' published product data, and waste allowances follow common industry practice rather than guesswork.
- Clear limits: results are estimates. They do not replace the values printed on the product label or the judgement of a professional on site.
- Free and no sign-up: every tool and page is open to everyone, with no account required.
- Kept up to date: we review pages periodically to fix errors, update broken links and refresh version information.
About external links
To help users find resources, some pages link to third-party platforms such as cloud-storage share pages or third-party download addresses. These links are marked nofollow. Clicking them takes you away from our site, and the third party's own terms and privacy policy apply. Please assess the safety and legality of any source before downloading or installing.
Who runs the site and how to reach us
The site is independently run and maintained by an individual developer. It is not affiliated with any of the third-party apps or brands mentioned on it.
Email: contact@jiameiyp.com.cn
Feedback, corrections, copyright concerns and partnership enquiries are all welcome at that address.