If people think about "Oral Jelly" then there is 99% change people will immediately connect this with the world famous "Kamagra Oral Jelly". So basically oral jelly can be seen as shorter version of abbreviation of Kamagra Oral Jelly.
However also the other world famous pharmaceutical companies produce ED treatment drugs in a oral jelly version of their ED pill:
Viagra Oral Jelly (Viagra - Pfizer)
Cialis Oral Jelly (Levitra - Eli Lilly)
Levitra Oral Jelly (Levitra - Bayer)
and last but not least of course Kamagra Oral Jelly (Kamagra - Ajanta) from which more below.
Having said that above... Kamagra Oral Jelly is one of the best oral jelly available, however as you saw there are also other versions available in oral jelly format. For example Viagra Oral Jelly which is also a Sildenafil Citrate based oral jelly. However as Viagra Oral Jelly is cheaper than kamagra oral jelly, personally I prefer the viagra version as it is cheaper, has the same amount and same quality of Sildenafil and actually I value Viagra as the first erectile dysfunction on the market better!