Artificial Koi

Studio Coldstream

Artificial Koi is an open-source (GPL-3.0-or-later) Android app by Studio Coldstream. The APK we host is 18 MB, it needs Android 8.0 or newer, and it declares 2 permissions.

The file on this page is Artificial Koi 1.2.0, 18.19 MB, and it installs on Android 8.0 and newer.

We compared the signing certificate of this build with the certificate recorded the first time studio.coldstream.artificial_koi entered the site, and published both the file's SHA-256 and the certificate's fingerprint above so you can check the download yourself. That comparison says the file was not repackaged by someone else; it is not a review of what the app does.

The manifest inside the APK declares 2 permissions, none of which cover contacts, location, SMS, the camera or the microphone.

Its licence is GPL-3.0-or-later. We took this build from F-Droid, and the source for this exact version is linked below.

We do not show a star rating or an install count for this page: we have no measured figure for either, and a number we cannot source is worth less than an empty field.

Download APK · 18.19 MB

Version: 1.2.0
Size: 18.19 MB
Requires Android: API 26
Package: studio.coldstream.artificial_koi
Signature checked on: Oct 23, 2026
Where this file came from: F-Droid
Licence: GPL-3.0-or-later
Source code: Source for this version

File SHA-256: 3e1e19171c625164d0b23f14605b244a57ac20b83d87d023d85a1fd115bfb52a

Signing certificate (SHA-256): 71457797202647610247ccdef74f89adf6f8e63a713641ea5cccd63d2273b474

We check that this file carries the same signing certificate as earlier releases of the same package. That shows the APK was not repackaged by someone else — it is not a security review of the app.