In reply to Kan.
Hi Kan - thanks for your comment.
All company information is available from https://find-and-update.company-information.service.gov.uk/ and this service is optimised for use on mobile devices, so a separate app is not required.
Just for background the guidance from GDS is that there should not be separate app services, as all websites should work on mobile devices:
https://gds.blog.gov.uk/2013/03/12/were-not-appy-not-appy-at-all/
Hope this is useful. Thanks for reading!
