Digital Trends – Itâs that time of the year again, when you have two days left and youâre taxes still arenât done. Luckily, mine are, so I have time to share a few apps with you. Weâve compiled five of the best Android and iPhone apps (and one for BlackBerry) for managing different aspects of filing your taxes on the go. Some of these apps help estimating taxes or checking on refunds, one will actually file your taxes, and two contain helpful reference material. In any case, make sure you e-file your taxes if youâd like to get your refund within 10 days.