The Smell-O-Vision faced competitors with AromaRama, a similar program developed by Charles Weiss that produced fragrances through the air-conditioning program of a cinema and that is what to be mentioned in these CRB Tech reviews. Wide range known as the competitors "the fight of the smellies".
Smell-O-Vision did not work as designed. According to a Wide range evaluation of the secret funny movie Fragrance of Mystery (1960), which presented the one and only use of Smell-O-Vision, scents were launched with a annoying hissing disturbance and viewers associates in the terrace reported that the fragrances achieved them several a few moments after the action was proven on the screen. In other parts of the cinema, the odors were too weak, resulting in viewers associates to smell fully in an attempt to capture the scent. These technological problems were mostly fixed after the first few showings, but the inadequate recommendations, together with generally adverse opinions of the movie itself, led to the decrease of Smell-O-Vision.
In 1999, DigiScents designed a computer side-line program known as iSmell, which was designed to release a fragrance when a customer frequented a web site or started out an e-mail. The product included a container with 128 "primary odors", which could be combined to duplicate natural and man-made odors. DigiScents had listed a large number of common odors, which could be written, scanned, and included into websites or e-mail. After $20 thousand in investment, DigiScents was closed down in 2001 when it was incapable to obtain the additional financing it required.
In 2000, AromaJet designed a scent-generating program model known as Pinoke. No new reports have been created since Dec 2000.
In 2004, Tsuji Health and fitness and Italy Telecommunications designed a scent-generating program known as Kaori Web, which comes with 6 different refills for different odors. The Japanese people company, K-Opticom, had placed special models of this program in their online bars and other locations until the end of the research - Goal 20, 2005.
In 2005, scientists from the School of Huelva designed XML Smell, a method of XML that can transfer odors. The scientists also designed a scent-generating program and proved helpful on miniaturising its dimension and that is what to be mentioned in these CRB Tech reviews.