Independent software studio
Make the most of your time off.
We build thoughtful, privacy-first utilities for iOS — quiet, precise tools that help people plan their time, protect their wellbeing, and get more out of everyday life.
What we make
Tools that do the thinking for you.
Our calendar apps don't just show you the dates — they read a whole year of public holidays and your available paid leave, then show you exactly which days to take so a few leave days become a long break. And beyond calendars, we build focused utilities like LiveMimi, which helps you enjoy live music while protecting your hearing.
Accurate by hand
Every holiday is verified against official government sources — substitute holidays, equinoxes, and one-off changes included. No guesswork, no stale data.
Genuinely private
Our apps run entirely on your device. No accounts, no servers, no tracking, no personal data leaving your phone. A calendar shouldn't need a login.
Pay once, keep it
Premium features are a single one-time purchase — never a subscription. We'd rather build something worth owning than something you keep renting.
How it works
Three steps to a longer break.
See the year
Open a calendar with every public holiday for your region, accurate and clearly marked.
Add your leave
Tell the app how many paid-leave days you have. It stays on your device — nothing leaves your phone.
Get a plan
The optimizer shows which days to take so your leave stretches into the longest possible breaks.
Built with care, one at a time.
We don't stretch one generic app thin across the world. Each calendar is localized from the ground up — the right holidays, language, and working culture — and each utility is built to do one thing genuinely well.
The studio
Small, focused, deliberate.
Flow Maxima Labs is an independent studio with a narrow focus: time, calendars, and the quiet logic of planning rest well. We believe software for everyday life should be calm, fast, and honest about what it does with your data — and that principle shapes every app we ship.
Flow Maxima Labs is a brand of PT. Fajar Inti Wisesa, registered in Surabaya, Indonesia.
Questions
Good to know.
Are the apps free?+
The core calendar is free. Premium features — like the leave optimizer and additional themes — are unlocked with a single one-time purchase. No subscriptions, ever.
Do you collect my data?+
No. Our apps run entirely on your device. There are no accounts and no servers — anything you enter, like your leave balance, stays on your phone and is never sent to us. See our Privacy Policy for details.
How accurate are the holidays?+
Every holiday is checked by hand against official government sources, including substitute holidays and date-shifting holidays like the equinoxes. Where a future date isn't yet officially confirmed, we mark it as provisional.
What kinds of apps do you make?+
Two lines so far: region-localized holiday & paid-leave calendars (Japan, Indonesia, Australia, with more coming), and focused wellbeing utilities like LiveMimi, a live-music sound-level meter and hearing-safety tool. All share the same principles — private, accurate, one-time purchase. Want your country or an idea covered next? Let us know.