Q: Is there any software to transfer my contacts pictures etc from my htc one m8 to my new iPhone

The following has some information and recommendations, including 3rd party apps: Move content from your Android phone to iPhone - Apple Support

Check with your carrier. They may have a dedicated machine (one brand is called "Cellbrite") that they may be able to use.

Warning: Ignore most of the posts from that will almost inevitably follow that link to software you can buy or download. It's generally worthless spam. These posts often try to disguise the links. They often come from users who have just joined. And who have posted almost nothing but spam.