Ya Nso'
The Nso Calendar
Yanso brings the traditional eight-day calendar of the Nso people of Cameroon to your phone — so you can know today's Nso date, explore Lamnso month names, and keep a living connection to Nso culture wherever you are.
What's inside
A calendar built on cultural accuracy, open research, and respect for Lamnso heritage.
Eight-day Nso week
The Nso week runs on an eight-day cycle — Kaavi, Rəəveiy, Kiloovəy, Nsəəri, Geegee, ŋgoilum, Waiylun, Ntaŋrin — displayed alongside the Gregorian date every day.
Twelve Lamnso months
Each month carries its Lamnso name — Mfiilum, Kifir, Tònŋkin, Sán, and nine more — with notes on spelling variation and research provenance.
Rest days & market days
Traditional rest days (Kiloovəy, ŋgoilum) and the principal market day (Kaavi — held at Mbvə' in Kimbo') are highlighted in every month view.
Culturally verified data
Every cultural data point carries a verification status — unverified, partially verified, or verified — so the app never presents uncertain information as established fact.
Light & dark themes
A hand-crafted Material 3 theme inspired by kola-nut brown, kente gold, terracotta clay, and indigo raffia — celebrating Nso aesthetics on screen.
Free & open source
Yanso is fully open source under the MIT licence. No accounts, no ads, no data collection. Just the calendar.
The eight-day week
The Nso week has cycled continuously for generations. Each day carries its own name, meaning, and rhythm.
The main Nso market, Mbvə', is held every Kaavi at Kimbo' (Kumbo) — a central gathering for trade and community life.
Open source & community-driven
Yanso is more than a calendar app — it is a small digital effort to keep Nso culture accessible to younger generations and to Nso people around the world. The calendar engine, the research records, and the app itself are all open to contribution.
If you have a verified Nso calendar date, a cultural correction, or a source we should know about, please open an issue on GitHub.