There are several DNA analysis apps. But most of them are subscription-based. DNADynamo is a static license app. It means that once you purchase a license, you get full support for these licenses, including future updates. We have five licenses in my lab, and I can easily transfer the licence on the computer of the finished student to the one who has just started. The interface is improving with every update, and I can say I love the app!
BioEdit - Biological sequence alignment editor
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UGENE - UGENE is free open-source cross-platform bioinformatics software
Open Vector Editor Electron - A simple file based genbank/fasta file viewer and editor. Works with mac/windows/linux
Geneious - Geneious combines all the major DNA and protein sequence analysis tools into one revolutionary...
Genophore - Genophore is an application for searching and designing proteins. It also provides a suite of bioinformatics utilities.