Falling 45

The Everlasting, but specifically focused on Reinas, Jordan, Matthew, and the 45 Day Loop

Romance/Fantasy

Reinas, an Erosian, is broke and forcibly ejected from Romantiqua until he can make enough money to return.

Modern tech (iPhones, laptops, etc)

Same as real world

Same as The Everlasting, though not all of its concepts are explored and more focus is given to Romantiqua

Falling 45 takes place within the same universe as The Everlasting, but F45 focuses a lot more on Romantiqua whereas The Everlasting is mostly about what happens on Earth. Love/Madeleine Minett and the leaders of Romantiqua are the only characters to show up in both stories.