Yes. One conversion an hour is free, with no account needed, for a file within the free size limit. A paid plan removes the hourly limit and the size limit, and lets you add several files to one job.
ווי לאַנג װעט אַ װײַזונג צו M4V צו 3GP װײַזן?
+
It depends on the size and length of the file. Small documents and images are usually ready quickly. Long videos take the longest, because most video conversions re-encode every frame.
Do you keep my M4V video?
+
Only for a short time. Your uploaded M4V and the resulting 3GP are deleted from our servers automatically about 24 hours after the conversion, which leaves time to download the result. Nobody reads the contents, and nothing is shared.