Flightdrop is a travel and navigation app available on iPhone that aims to help users save up to 70% on flights. By providing your nearest airport and the destinations you're interested in, Flightdrop sends you highly personalized deals at huge discounts. The app claims to find and alert you on incredibly cheap flights that are guaranteed to be 50-70% off regular prices.

The app works by monitoring airlines for mistake fares, unadvertised sales, and promotions. When it finds abnormally low prices, it immediately notifies you so you can take advantage of the deals. Previous deals sent by Flightdrop include round trips from NYC to Paris for $260 (normally $800), SF to Bali for $364 (normally $900), and LA to Osaka Business Class for $750 (normally $1600).

Flightdrop has received positive feedback from its users, with many praising its ability to help them save money on their travels. The app also offers personalized deals based on your preferences, allowing you to only receive deals that match your travel interests. Additionally, Flightdrop provides a Price Calendar feature that lets you explore flight options and find the cheapest dates to fly.

With its focus on personalized deals, user support, and finding the best flight prices, Flightdrop is a valuable tool for budget-conscious travelers.