It's a bit more complicated.
In Judaism there is basically no afterlife -- neither heaven nor hell.
Christianity introduced the promise of eternal life but made it a carrot-and-stick deal -- bask in joy or burn in flames.
Islam essentially went with Christianity's approach, but wrote in a grandfathering clause for "people of the Book" -- Jews and Christians -- who are seen as following more or less the right religion, just not the latest most-correct version updated by the final prophet (Muhammad). Pagans and atheists still burn.
In Judaism there is basically no afterlife -- neither heaven nor hell.
That's not really accurate. There are versions of Judaism which have no afterlife, but many classical forms of Judaism do have an afterlife. Part of the idea that Judaism doesn't have an afterlife is due to Christian misunderstandings because in Judaism the afterlife is just really, really not important. It is a much more this world focused religion. But most forms of Orthodox Judaism definitely believe in an afterlife where while the details may be fuzzy, there's a definite reward for the righteous and punishment for sin.
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