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Frequently Asked Questions

What is Kotatsu?

Kotatsu is an open-source Android app that lets you read any from your device - faster and easier than ever.


Kotatsu is not hosting any content, we are not affilated with or responsible for any source that is: slow, down, missing chapters, or has supbar image quality.

Where do i post app issues, bugs or feature requests?

To post app issues, bugs, and feature requests please open a ticket on GitHub by following the link here

Why isn't Kotatsu on the Google Play Store?

Kotatsu won't be on the Google Play Store. Google might take down the app due to certain content, which the developers wishes to avoid.

To report Kotatsu copycats on the Google Play Store, fill out this form following the steps below.

Steps to report Kotatsu copycats
  1. Go to the page -> three dots menu -> Flag as inappropriate -> Other objection.

  2. After choosing "Other objection", you may choose to put down any or all of the following:

    The app infringes on the Google Play Developer Policy by

    Encouraging Infringement of Copyright

    We don’t allow apps that induce or encourage copyright infringement. Before you publish your app, look for ways your app may be encouraging copyright infringement and get legal advice if necessary.

    Trademark Infringement

    We don’t allow apps that infringe on others’ trademarks. A trademark is a word, symbol, or combination that identifies the source of a good or service. Once acquired, a trademark gives the owner exclusive rights to the trademark usage with respect to certain goods or services.

    Trademark infringement is an improper or unauthorized use of an identical or similar trademark in a way that is likely to cause confusion as to the source of that product. If your app uses another party’s trademarks in a way that is likely to cause confusion, your app may be suspended.

    Misleading Claims, e.g. "MangaTop - Best Manga Reader"

    We don’t allow apps that contain false or misleading information or claims, including in the description, title, icon, and screenshots. Here are some examples of common violations: Apps that misrepresent or do not accurately and clearly describe their functionality:

    • Developer or app names that misrepresent their current status or performance on Play. (E.g. “Editor’s Choice,” “Number 1 App,” “Top Paid”)...
    • Apps that are improperly categorized.

Is Kotatsu available for iOS/iPadOS?

There is no iOS or iPadOS version and neither are there plans for one. Porting is difficult due to the separate codebases of iOS and Android apps.

Any app proclaiming to be "Kotatsu for iOS" is not by us and should be treated as a scam.

Can I read light novels?

Kotatsu can't read light novels; it's an image parser, not a text parser.

Can I stream anime?

Kotatsu isn't designed for anime streaming.

Projects using the Kotatsu name for anime streaming aren't affiliated with the main project.

Can I use Kotatsu on desktop?

No, you can't.


kotatsu-dl is a manga downloader for Windows, Mac and Linux, but you can't read from it.

Can Kotatsu sync across devices?

Yes, the application supports synchronization between devices.

Learn how to create a Kotatsu Sync account here

What do I do if I have to switch to a new phone?

Please follow these steps:

  1. Backup your entire favourites and history from your old device and transfer it to your new phone.
  2. Restore the backup.


More information about backup and restore is listed here.

Can I restore my Tachiyomi backup to Kotatsu?

No, you can't. This is due to the difficulty in supporting and adapting the .proto.gz or .tachibk format that Tachiyomi uses. Also Kotatsu and Tachiyomi and its forks have different data structures that they use. For Neko for MangaDex users we recommend to use Nekotatsu.

Usage from project README

$ nekotatsu (input neko.tachibk) (optional output name)