If you bought Golf Pad TAGS in November 2018 or later from golfpadgps.com or from Golf Pad on Amazon, and they were listed as compatible with iPhone, you are all set. The tags will work with both Android and iPhone as well as LINK. See this article for more details on phone compatibility.
If you bought Golf Pad TAGS for Android or got tags as a part of LINK set, then unfortunately they will not work with iPhone (unless you use LINK). The reason is the technical limitation of iPhone NFC system library. A workaround may be possible in the future, please email us so we can keep you posted.