As opposed to the M2P/M2Z, the original MP only creates the pano on your device, not onboard and hence on the SD card.
This is why you have to go to the Go4 gallery and select the pano for download … to the device.
The stitching saves an image that’s just rectangular - even though it displays it in a “tiny-planet” in Go4. The only way of then sharing this is by a screenshot on your device.
The better rectangular image it creates (there are two versions - one seriously low res, and one not all that brilliant - can’t recall where on Android, and no idea on iOS) can be uploaded to sites like Kuula to create an interactive image that can be posted here (Some How to … info.).
That (and similar) site creates a far higher res image from the 34 images you’ll find on your SD-Card, but first you’d need to use software to create the stitching (also mentioned on that link).
Tiny planets can be exported from stitching software, and sites like Kuula can display as a Tiny-Planet…
Hope this helps.