The Countdown app was inspired by STX Films` horror film “Countdown,” starring Elizabeth Lail. In the film, a mysterious app predicts the date and time of their users` death – and all those who install it die in mysterious circumstances at the scheduled time. As the film`s advertising campaign says: “Death? There`s an app for that. Earlier than you can say “allow notifications,” a group of teens download the death app and miss out on these annoying conditions and restrictions for user agreements. “It`s just an app!” is one of them, who has already moved on to another form of recklessness. But if the countdown proves real, the software manufacturer will be held accountable and an investigation will be opened. Quinn learns that Sullivan has led employees to think that she sexually harassed him: as a result, she is suspended. Matt is attacked by the entity that takes the form of his deceased brother. They look at the user agreement that says the agreement is broken if the user tries to change his fate: Quinn`s trip with his family and Matt, who is on a train trip, both cancelled, would have resulted in his initial death. They hack into the app and learn that Jordan is going to die just before Quinn. Derek, the phone salesman who helped them hack the app, adds more years to the three years of life. Quinn, however, is attacked by the demon and the countdowns back to their original era. At a party, teen Courtney is convinced by his friends to download Countdown, an app that seems to predict how long a user still has to live.
Courtney is terrified that she will have only three hours of life. After avoiding getting into a car with her drunk friend Evan, Courtney receives a notification that she has broken the “user contract.” When she returns home, she is attacked and killed by an invisible entity when her timer reaches zero. At the same time, Evan crashes and a tree branch passes directly where Courtney was sitting. Unless there were none at the beginning. Creating a recent “countdown” app was not part of the official campaign for the film. The app was more the work of Ryan Boyling, a young British developer who was inspired by the film`s trailer.