About this app

Built as an underground line diagram: red roundel, white-on-black sign frame, station dots on a track with the travelled segment highlighted. Tap any two stations to set a journey, toggle peak, and it computes the single fare by zones crossed, the monthly cost against the fare cap, and the exact number of trips at which a season ticket starts winning.

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Win rates and risk grades are computed by Masterboard from tracked trade outcomes after the strategy is assessed — not self-reported by sellers. Past performance does not guarantee future results.