SMS Signature+

SMS Signature+ addresses a very old problem: plain text messages have no built-in signature, so people who want a fixed sign-off have to add one somehow. By our assessment, that makes it practical for business use, repeated personal contacts, or anyone who sends the same closing line again and again. Its strength is obvious and narrow: it saves typing and keeps a signature consistent. The limit is that SMS itself is a blunt tool, so the app cannot turn messages into something richer; it just manages the text around them. In use, that means a small utility that matters most when you send a lot of short messages. SMS Signature+ sits below full messaging clients and above manual copy-paste, which is exactly the niche it claims.