Welcome to Android Central! Photos are not saved to the SIM card. They're saved either to Internal Storage or the SD card. Since the iPhone doesn't support SD cards, you'd have to transfer the photos some other way. I recommend uploading your photos on your Note 3 to your Google Photos in the cloud: https://support.google.com/photos/answer/6193313?co=GENIE.Platform=Android&hl=en. Then install Google Photos on your iPhone so you can access your entire photo cloud library.