Choosing a Zinuto product for files or Chinese practice

For images, PDFs, audio, video and archives

PubToo describes six file tasks: images, PDF, video, audio, packing and extraction. Identify your input first, then decide whether you need a smaller file, another output format or a convenient way to keep several files together.

For an image attachment, check the recipient’s accepted formats and size limit before choosing settings. Putting an already compressed video in a ZIP archive mainly helps organize and transport it; the video may not become much smaller. Open the output to check its picture, text or sound, then compare actual file sizes.

• PubToo is the Mac edition; PubToo Go is for iPhone and iPad; PubToo Lite is for Android.
• Each edition has its own release status. A change to one edition does not establish availability of another.
• The PubToo guides explain the tradeoffs for images, PDFs and archives in more detail.

For HSK practice and reviewing mistakes

HSKOn focuses on Chinese written practice in the HSK levels 1–6 range. Its website describes listening, reading, writing, mistake review and use across devices. It is an independent practice product; practice results and estimated scores do not replace official examination results.

Begin with a small set of suitable exercises and record whether the difficulty is vocabulary, sentence meaning, time management or an interaction problem. Use that observation to choose the next material. A single goal you can check is easier to review than a large count of completed questions. The HSKOn guides include examples for short practice sessions, listening review and vocabulary recall.

• The HSKOn application is currently in beta. Check its website for any future public download announcement.
• A product’s practice scope does not establish examination registration or administration rules; confirm those through the official examination channels.
• You can use your own suitable study materials for the general practice methods in the guides while the application is not publicly available.

Check your platform and edition first

Read the platform section of the official product website and check the device, edition and available entry point. Reposted download links can be outdated. A platform description or a reserved screenshot area does not by itself mean that an edition has been released.

Check pricing, trials and subscription terms for the specific edition as well. For an existing purchase, keep the order record in the relevant store and read the matching help section. Do not assume that purchases on Mac, iOS and Android automatically represent one shared license.

Find the matching help and contact page

The company website is www.zinuto.com. PubToo uses www.pubtoo.com and HSKOn uses hskon.com. Zinuto is operated by 轻创掘金（青岛）信息技术有限公司. The shared contact address is contact@zinuto.com.

Read the product help page first. When contacting support, include the product, platform and issue type in the subject, then explain what you expected and what happened. This identifies the relevant edition without requiring an entire personal file. Tukket manages its own public pages; visit its own website for current information.