RoyalBid Predictive Auction Model
Stop Guessing Your RoyalUp Bid.
Analyze cabin inventory, competition, upgrade economics and bid probability to find the RoyalUp sweet spot.
RoyalBid AI analyzes publicly observable cabin inventory, sailing demand, RoyalUp bid ranges, pricing and historical upgrade outcomes to estimate where your bid may need to land.
Example · Grand Suite
IllustrativeBargain
$675
Sweet Spot
$850
Win-Focused
$1,025
Past ~$950, each extra probability point costs 6× more.
The goal isn’t to bid more. It’s to find the lowest economically rational competitive bid.
Hidden inventory
Separates publicly observed cabins from estimated allocatable inventory, bounded by physical category capacity.
Competing bids
Treats rival offers as a hidden variable — negative-binomial volume, Beta-distributed bid positions.
Upgrade cascades
Every accepted upgrade releases a cabin downstream. Your released room has economic value.
Revenue optimizer
Simulates a revenue-maximizing allocation across the whole upgrade network, not just your offer.
Bid curve
Win probability across the full bid range, with marginal cost per extra point of probability.
Direct upgrade check
Flags when RoyalUp gets close enough to a confirmed upgrade that certainty is the better buy.
No Royal Caribbean login required. RoyalBid never scrapes private booking pages and does not know Plusgrade’s proprietary algorithm.