A new report from Sensor Tower has put Mario Kart Tour's day-one downloads at over 20 million, double Apptopia's estimate from earlier today and nearly triple the day-one downloads of Super Mario Run.
Additionally, Sensor Tower reports that player spending has already reached $1 million -- approximately one-fourth of launch-day spending on top Nintendo mobile revenue performer, Fire Emblem Heroes. This does not include revenue from the $4.99 Gold Pass subscription, due to a free two-week trial offered to everyone who subscribes.

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