Mystery Art
The image starts hidden, and colors are revealed one by one as you work. Completing Mystery Art gives Mystery Points for stronger tool upgrades.
Android apps by Kuarkle
Small Android apps with a soft visual style, simple controls, and clear privacy information.
πΈ Cute Wallpapers - Kawaii
Cute Wallpapers - Kawaii is a free Android wallpaper app from Kuarkle Apps. It includes a large collection of cute and kawaii wallpapers, easy categories, offline access, and online updates for fresh backgrounds.
Cute Wallpapers - Kawaii is a free Android wallpaper app by Kuarkle Apps. It was released in November 2017 and focuses on cute, kawaii-style wallpapers that are easy to browse and use.
The app supports both offline and online use. You can enjoy the wallpapers already available in the app without an internet connection, then go online when you want newer additions.
Use offline wallpapers already inside the app, or go online to browse newer additions.
Explore a large collection of cute wallpapers made for phones and everyday use.
Find unicorns, space cats, anime girls, and other kawaii themes without digging around.
Get plenty of offline content in an app designed to stay lightweight.
The app is free. Ads help support updates and keep the project running.
New cute and kawaii wallpapers are added over time.
π¨ NumiPai
NumiPai is a free Android color by number game made for adults who want a calmer way to enjoy pixel art coloring. Choose an illustration, match numbers with colors, and slowly bring each picture to life.
It has ads, but no subscriptions and no in-app purchases. You can unlock Mystery Art, upgrade tools, and progress through the game by playing.
NumiPai is a relaxing pixel art coloring game for Android. It follows the classic color by number idea: pick a color, find the matching numbered pixels, and fill the image step by step.
The game adds a fresh feel to the genre with clean visuals, smooth controls, cozy pacing, Mystery Art, Custom Art, gameplay tools, streak rewards, and printable finished artwork.
NumiPai was created by people who played many color by number games and wanted something that felt less noisy, less pushy, and more pleasant to use every day.
The image starts hidden, and colors are revealed one by one as you work. Completing Mystery Art gives Mystery Points for stronger tool upgrades.
Turn your own photos into pixel art directly on your device. Your custom images stay private.
Save finished artwork as a printable PDF in a single A4 page or a 4-page layout.
NumiPai includes gameplay tools that make coloring smoother and more satisfying. They help you fill lines, areas, patterns, or full colors faster while keeping the relaxing color by number flow.
Fills vertical and horizontal lines through the tapped pixel.
Fills a larger area in one splash.
Creates a crack pattern that fills several pixels at once.
Fills every pixel of the selected color on the current image.
Wrong taps are not punished. You can color at your own pace, use tools when you want, and keep the session quiet and comfortable.
Double-tap a selected color to find a missing block for free. Use drag painting for smoother filling. Let the game move to the next unfinished color after you complete one. Downloaded images stay available offline, so you can continue coloring anywhere.
NumiPai is a free Android color by number game by Kuarkle Apps. It is made for adults who want cozy, relaxing pixel art coloring. The beta version was released at the end of 2025, and the full version was released in January 2026. The game has ads, no subscriptions, and no in-app purchases. New images require internet to download, while downloaded images can be colored offline.
NumiPai is a free Android color by number game focused on relaxing pixel art coloring for adults.
NumiPai is for adults who enjoy cozy mobile games, relaxing coloring apps, paint by number games, and calm pixel art gameplay.
The beta version was released at the end of 2025. The full version was released in January 2026.
Yes. NumiPai is free to play. It has ads, but no subscriptions and no in-app purchases.
New images need internet to download. Downloaded images stay on your device and can be colored offline.
Yes. Custom Art turns your own photos into pixel art directly on your device.
π§© ZumiTile Β· SOON
ZumiTile is an Android puzzle game where the same artwork can be solved in different ways. Adjust zoom levels, slide shuffled tiles, or rebuild the picture piece by piece.
Each mode has its own stars and unlock path. Earn stars to open more levels, improve your results on replays, and unlock a level's wallpaper by earning three stars in any mode.
The picture is split into 9β36 tiles with different zoom levels. Tap to zoom in, long-press to zoom out, and find the correct scale for every tile. Three stars reward careful tap planning.
A sliding puzzle inspired by the classic 15-puzzle. Move image tiles through empty spaces until the picture is restored. Faster solutions earn more stars.
Place 36 upright interlocking pieces where they belong. Correct pieces snap into place, while your completion time determines the star result.
Scale scores the number of taps you use, while Shuffle and Jigsaw use completion time for their star thresholds. Missing the top rating does not stop the level: finish the puzzle, collect your result, and replay it whenever you want to improve.
Progress is separate for each mode, so advancing in one does not skip levels in another. Getting three stars on a level in any mode adds that level's wallpaper to your collection.
Last Updated: September 16th, 2026
We want you to enjoy our apps without having to wonder what happens to your data. Here is the simple version:
To understand how our apps are used and what content people enjoy, we may collect a small amount of basic technical and usage information.
This can include:
We use this information to understand which content is popular, check that app features are working correctly, and decide what kind of content to add in the future.
Our servers may receive an IP address as part of a normal internet request. In our own logs, we remove the final part of the IP address to reduce how precisely it can identify a device or connection. We do not use IP addresses to identify individual users or build profiles about them.
We do not use this data to access your name, email address, photos, contacts, messages, files, or other personal content on your device. We are interested in how the app and its content are being used, not in who you are.
For example, we may see that a certain image was downloaded, installed, or completed from a phone on a particular date. We do not need to know the identity of the person who did it.
We use bunny.net (Bunny CDN) to deliver images and other app content quickly and reliably.
When your device downloads content through Bunny CDN, Bunny may process normal technical information associated with an internet request, such as an IP address, requested file, request time, and basic connection or device information. This is handled by Bunny as part of providing its content-delivery and security services.
We do not use Bunny CDN to identify you or create advertising or personal profiles about you. For more information about how Bunny handles data, you can read their policy directly:
To keep our apps free, we use third-party advertising services, including Appodeal and advertising partners available through its platform, as well as Yandex Ads where applicable.
These companies are separate from Kuarkle Apps. While we do not collect or store your personal information for our own purposes, advertising providers may collect or process certain technical, device, advertising, and usage information through their SDKs.
They may use this information to show ads, measure ad performance, prevent fraud, limit how often you see the same ad, and, where allowed and consented to, personalize advertising.
The exact data collected can depend on your device, region, age category, privacy choices, and which advertising provider serves an ad.
We configure our advertising integrations with privacy requirements such as GDPR and COPPA in mind, but each advertising provider is responsible for how it processes data under its own privacy policy.
If you want the full details, you can read their policies directly:
The "Data safety" section on our Google Play store page provides a structured summary of the data that our app and integrated services may collect, share, or process. We keep this section updated to match the app and its current integrations.
If you have any questions about this privacy policy, please click the button below to reveal our contact email.
By using our app, you're agreeing to this straightforward approach. You get a free app, and we get to keep improving it with basic usage feedback and support from ads.
For general inquiries, support, or feedback, please click the button below to reveal our contact email.
We do our best to ensure all images used in our apps are sourced from the public domain or under Creative Commons licenses. We perform checks, but mistakes can occasionally happen. If you believe we have mistakenly used an image that does not have the correct license, please contact us at the email revealed above with the details. We take these matters seriously and will promptly investigate and remove any infringing content.