3GP uses heavy compression to keep file sizes small, which often results in lower video and audio quality compared to modern formats.
3GP is an older, "legacy" format. Most modern smartphones and social media platforms (like Instagram or TikTok) prefer MP4 or MOV . Postim In 3gp
You can use simple video editing software to place text over a solid background and export the project as a .3gp file. 3GP uses heavy compression to keep file sizes
While 3GP is a video format, you can "convert" text into a 3GP file by creating a video where the text is displayed on the screen. Postim In 3gp