Security tools & everyday utilities
Software that helps you see more, do more, and stay in control. Arc Signal makes focused tools for your digital life—with privacy built in.
Security awarenessSpectra™Read the signals around you.
Screenshot stitchingSeamlessKeep the whole story.
Two useful tools. One thoughtful approach.
On-device processing
No account required
No ads. No distractions.
Our products
Explore the space around you. Bring a scattered story together. Find the tool that makes your next step easier.
The signals are there.
Make sense of them.
Explore nearby Bluetooth signals, local network services, and magnetic-field changes. See the evidence behind each observation.
Explore SpectraApple iPhone 16/17 · iOS 27
App preview · Simulated readings
The whole story.
In one image.
Turn overlapping screenshots into one continuous image. Keep the context, check every join, and save or share a crisp PNG.
Explore SeamlessApple iPhone · iOS 18 or later
App preview · Fictional sample content
The Arc Signal approach
We build security products and practical utilities with a clear purpose: help you understand more and get things done, without unnecessary complexity.
Tools built around a real task, with a direct path from opening the app to doing what you came for.
Both apps process their work on your device. No account to create, no ads to navigate, and no analytics in the apps.
See the clues behind a signal or check the joins in an image. Clear results include clear limits.
Privacy, in practice
Privacy is part of how our products work.
Spectra analyzes observations locally. Seamless joins your screenshots on your device. You decide what to inspect, keep, and share.
Each product page explains its data handling and limits, including the system services you choose to use.
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