# Displaying installed apps

Apps perform functions ranging from multiple sequence alignment (e.g. `progressive_align`), to excluding alignment columns containing non-nucleotide characters (e.g. `omit_degenerates`) to performing maximum-likelihood evolutionary analyses (e.g. `model`).

The `name_filter` argument can be used to display only the apps that match a string. For example, to display all the loader apps

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Getting an app

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Data stores – collections of data records