Independent App Studio

We build clean apps
that matter.

Focused, well-crafted mobile apps designed to solve real problems — no bloat, no noise.

Our Apps

Tools designed to help you build better habits.

Freedom Fast

Fasting tracker — simple, focused, effective.

Track your fasting window with a real-time timer, monitor biological stages, log health metrics, and build consistency with detailed history and stats.

iOSAndroidHealth & Fitness
WebsiteApp StoreGoogle Play — Soon
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More Coming Soon

We're working on new apps. Stay tuned.

About the Studio

Sef Dev Studio is an independent app studio focused on building simple, useful mobile apps. We believe in clean design, no bloat, and tools that respect your time.

One Thing Well

Every app we ship is built to do one thing and do it right. No feature creep, no bloat.

Clean Design

Minimal interfaces that respect your attention. No distractions, just the tools you need.

Privacy First

Your data stays on your device. No accounts, no tracking, no servers storing your information.

Let's Talk

Questions, feedback, or partnership inquiries — we'd love to hear from you.