1. Jingle
Sending a personal / gift songJingle is the most direct app for the message-to-song job. You type a message — a birthday wish, an apology, an inside joke, or a line pasted from a WhatsApp or iMessage chat — pick a vibe, and it returns a short, fully sung song you can send to chat or TikTok in one tap. It is free to download and try. It is not a music studio, and that is the point: for a gift you want delivered in the next minute, the niche app beats the general tool.