After all is a common expression which implies a conclusion to a thought. However, if you're looking to express the same sentiment in a different way, there are several synonyms available to use. For instance, "considering everything," "in the end," and "when it comes down to it," all deliver a similar meaning. "Ultimately," "finally," and "at last," also accomplish the same objective. Similarly, "all things considered," "when all is said and done," and "in the final analysis," all convey the idea of considering everything in its entirety. In conclusion, if you would like to vary your vocabulary, there are multiple ways to replace the words "after all" without losing meaning.