Mobile App Developer in Sherman Oaks, CA

CateNET builds mobile apps for professional offices on Ventura Boulevard that are tired of emailing PDFs and playing phone tag for appointments. Ranking a practice site still brings the first call. The second visit is where an app earns its keep: appointment booking, secure messages, and documents that do not live in a personal Gmail. Law firms want intake and file access with real permissions. Medical practices want scheduling and forms that respect privacy. We build iOS and Android, or React Native when one codebase is the honest budget, with custom app design that looks like the suite instead of a consumer toy.

API integration is the unglamorous core. The app has to talk to practice software, calendars, and storage you already pay for. App store submission needs privacy labels that match reality. Ongoing maintenance covers OS updates so a portal does not die after a weekend iOS release. We would rather ship a tight booking and documents app than a social layer nobody asked for.

Our office is at 15303 Ventura Blvd in Sherman Oaks. CateNET handles design, development, and launch under one roof. A partner meeting can happen down the hall. There is no handoff between a UX freelancer and a contractor who never signed your NDA. One team owns the screens, the code, and the store listing. Ventura Boulevard offices often already pay for practice software that has a terrible mobile view. We wrap the pieces you actually use: booking, messages, documents. We skip the fake social feed a packager will try to sell you because it looks like an app.