Saalis does not claim to know where the game is. We combine real-time weather, land-cover data and the daily rhythm into an estimate of when, and in what kind of terrain, conditions favour game movement. We show the data and the reasoning — the decision is yours.
Plenty of apps promise to tell you where the quarry is waiting. That is misleading — and in hunting, irresponsible. Game movement is driven by weather, food, disturbance and terrain, and no model sees the ground in real time.
Saalis does it differently: we show favourable conditions and terrain types, not points to shoot from. You combine them with your own local knowledge, the law and field observations. Transparency before promises.
The movement index combines these with weights — no single signal decides.
A steady 2–5 m/s wind helps your approach and scent control. Strong wind (over 10 m/s) makes game wary. Principle: keep the wind in your face — your scent drifts away from the area.
Stable or gently falling pressure often precedes active movement and feeding. A rapid rise behind a cold front can quiet movement for a while.
Most game species move most at twilight. The morning and evening transitions between feeding and rest are typically the best windows.
Heat reduces daytime activity. Frost and cold fronts push game into sheltered hollows and spruce stands — timing and where to look both shift.
Land-cover data (ESA WorldCover) distinguishes forest, edge zones, wetlands and open ground. Species-specific preference tells you where conditions are favourable — not where game is right now.
Moonlight has a small effect on nocturnal movement. Saalis weights this modestly — it is one signal among many, not a magic number.
Open, free and traceable sources — no closed black box.
Real-time weather: wind, air pressure, temperature, cloud cover.
Global 10 m land-cover dataset for the habitat layer — open and free.
Sunrise/sunset, twilight windows and moon phase — computed from your location.
General game biology and wildlife-management background behind the recommendations.
For each point in time Saalis computes a movement index that combines the signals above with weights. A high index means several factors line up in the same direction — not a guarantee, but a more favourable window.
Principle: every bonus and penalty is general-purpose and based on the known effect of weather, light and terrain on game behaviour. We state the reasoning in plain language — we don't hide the logic.
It evolves: we refine the weights based on feedback and field observations. If you spot an error or know a better source, write to: juhohietanen84@gmail.com.