If you want to merge vCards from Gmail, Outlook, and iPhone into one single file. There are two methods to do that: the first is using a manual method, which is best for a single and small contact list, but if we talk about a large and bulky file, it can be messy or time-consuming to export contacts from each platform in vCard format. For a large number of contacts, using a dedicated vCard merge utility like WholeClear Merge vCard Software can make the process easier and more accurate. I also used this solution lots of times; it works very well for personal or business contact merging. Let's talk about its features; it supports the bulk conversions feature, preview option, and works offline, which makes it an all-in-one solution to join VCF files accurately and safely. You can also test the tool with a free demo edition.