Unlike other websites that offer the same service, Isoplex can index several versions of the same movie, including rips and movies filmed directly from a cinema screen.
Because of this, Isoplex doesn't always provide the most brilliant image and sound quality, but you can still enjoy the movie if you don't mind about the resolution. To search for a film, you just have to enter the name or filter by category, year of release, or genre.
The program also incorporates a synopsis for every movie, and sometimes a trailer too, if one is available. The downside to Isoplex is that it still is in development phase, but it's expected that later versions will offer more features and better usability.