Features
Everything you need to go from a selected series to a defensible forecast — free, inside Excel.
Series fingerprint
Trend, seasonality, intermittency (ADI/CV²), zeros, and gaps — in planner language — before any method is chosen.
Candidate Policy
Eligible methods are listed with a reason. Pro methods appear locked on Free so you can see what they would add.
Rolling-origin MASE
Walk-forward ranking. Always show MAE, RMSE, sMAPE, bias, and Forecast Value Added vs naive. MAPE is warned when zeros would lie.
Croston family
Croston, SBA, and TSB for spare parts and lumpy demand — first-class, unlike Excel Forecast Sheet.
Method DNA + Learn
A plain-language identity card plus Student / Planner / Formal copy at every step. No LMS or quiz product.
Proof charts
History, backtest, forecast with prediction intervals, and residuals — Apache ECharts, written back with the results sheet.
Inventory layer
Optional safety stock and reorder point when intent is demand or inventory.
Sample library
Load curated series in memory or write them into Excel to try the whole workflow instantly.
Offline & private
Free: one series, no account, no raw upload. Pro: batch, live fetch, advanced methods, Python/R export.