Junova monitors eligible already-booked flights and looks for opportunities to obtain a refund or credit when fares fall, according to its service terms.
The important distinction
Junova is not primarily a flight-search engine. Its value proposition begins after an eligible flight has already been booked.
No guaranteed savings
Fare drops, airline rules and eligibility vary. Users should not assume that using the service guarantees a refund or credit.
Verdict
Junova is an interesting niche tool for frequent US travelers who book directly with supported airlines and want post-booking fare monitoring.