ArtFlow is an Android app for digital painting and sketching on phones and tablets. It offers a GPU-accelerated paint engine, canvases with up to 50 layers depending on device memory, stylus pressure support, more than 100 brushes and tools, custom brushes from imported images, masks and layer filters. It imports and exports PNG, JPG and PSD files. The app is free to install; a one-time in-app purchase for a Pro licence lifts limits such as the three-layer cap and enables PSD export. It is distributed through Google Play.
ArtFlow is developed by BYTESTORM SOFTWARE (Bartłomiej Janusz), a small developer in Ruda Śląska, Poland, so the company sits inside the EU. The app is not open source. Its Google Play listing states that it contains ads and in-app purchases, and its data safety section says the app may collect personal information and device identifiers and share them with third parties. A European organisation should review the privacy policy before allowing the app on managed devices.