Tesera Studio
An independent app studio. We design and build mobile apps under our own brand.
Our first app, Open Signal, is live on the App Store — with more on the way, built with the same care.
Open Signal: Cell Tower Finder
See nearby cell towers, coverage, and the mobile signal your device is receiving — all at a glance. Free on the App Store, with an optional Pro upgrade.
Mobile-first products
Apps designed to feel native, ship clean, and stay maintainable.
Design that earns trust
Clarity over decoration. Interfaces that respect attention and reward repeat use.
Engineering with taste
Small bundles, calm tooling. Code we will be proud of in two years.
The studio is young. The taste is not.
Tesera Studio is the home for the apps we build. We are a small team obsessed with quality interfaces, honest engineering, and products you actually want to open the next day.
- Now
Open Signal is live on the App Store — cell towers, coverage, and signal at a glance.
- Soon
Refining Open Signal and rolling out its optional Pro upgrade.
- Next
Launching more apps one at a time — each held to the same bar.