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Choose your iPhone app

Choose BrushMark for photo-based paint by number, NetKit Subnet for subnet planning, or follow the upcoming NetKit Tools for network diagnostics. Each product has a different job.

Fidget Digit Studios L.L.C. is an independent multimedia studio in Phoenix, Arizona. This guide brings together the product information on our apps page and directs you to the right product website.

BrushMark: turn a photo into a numbered canvas

Choose BrushMark when you want to turn a personal photo into a painting you fill one shape at a time. It is designed for iPhone and iPad. The app creates a numbered canvas from a photo in your library, then lets you select a color and tap the matching shapes.

For example, a pet photo becomes a coloring project you can return to across short sessions. The app offers detail levels, pinch-to-zoom and a hint button, and lets you save the finished painting or share a before-and-after card.

Photo conversion happens on the device. Read the app's own privacy policy for its full data-handling terms, and check its homepage for release status.

• Explore BrushMark for iPhone and iPad
• Read the photo-to-paint-by-number guide
• Get BrushMark support

NetKit Subnet: plan IPv4 and IPv6 networks

Choose NetKit Subnet when you need to work out a network range, subnet mask or host count. It is a subnet calculator for iPhone, with IPv4 and IPv6 support and input formats for CIDR prefixes, subnet masks and wildcard masks.

For example, you can enter an address and prefix to see its network and usable range. The app also supports splitting a network and converting an address range into CIDR blocks. Cloud-aware calculations account for the addresses a provider reserves rather than relying only on a conventional host count.

NetKit Subnet calculates addresses on your device and works offline. Visit its own site for supported platforms, current availability and the complete privacy policy.

• Explore NetKit Subnet for iPhone
• Use the IPv4 subnet cheat sheet
• Get NetKit Subnet support

NetKit Tools: upcoming network diagnostics

NetKit Tools is listed as coming soon. Its planned focus is network diagnostics for iPhone, including ping, traceroute, DNS and health reports for websites and domains. The products page is the place to check for updates.

Subnet planning and live troubleshooting are different tasks. If you are calculating an address range, start with NetKit Subnet. If you need to investigate whether a host or service is responding, that is the planned role of NetKit Tools. Do not assume an upcoming feature is available until the product's release information confirms it.

Where should you ask for help?

For app-specific questions, use the product's support page above. Include the app name, version, device and iOS version, what you expected, and what happened. Those details help the studio understand the issue.

For general studio inquiries or questions about which product to follow, visit studio support or contact Fidget Digit Studios.

Published October 3, 2026 by Fidget Digit Studios L.L.C. Product descriptions reflect the information documented on the studio and app websites; release status and features may change.