Thank you for your post.
Connect your iOS device to the Mac and launch iTunes. Click the iOS device name under "DEVICES" on the left side of the iTunes window, and on the right side, click "Apps" at the top. In the lower portion of that window, under File Sharing, click on FileMaker Go beneath Apps, and on the right side shows the FileMaker Go documents on the iOS device. Drag the FileMaker Pro file that you want to copy to the iOS device into the FileMaker Go Documents section, and this will copy the file to the iOS device. Now, your iOS device can launch FileMaker Go and use the file locally without it affecting the main file on the Mac/Windows computer. This would be a one-way sync.
Warning: if you drag something out of the "FileMaker Go Documents" section onto your computer, and if the file already exists on your computer, then you will be prompted to overwrite the file. This could result in the FileMaker Go local file overwriting your master file on your Mac/Windows computer.
FileMaker Go does not sync with FileMaker Pro, so you would need to create a script that updates the file to simulate syncing by comparing records, and adding records if the record doesn't exist, etc. Also keep in mind that FileMaker Go can access FileMaker Pro hosted files via Wi-Fi or 3G, so a FileMaker Go user can access the file in real-time, and if the FileMaker Go user has certain access privileges, he/she could update the database so everyone would have immediate access to it.
Let me know if you need additional clarification.
Thank you, TSGal for your helpful answer. It is quite easy to do a manual replacement of an updated FM Database for the iOS device, actually, so I really don't need to go the script route but it is good to know that's a possiblilty should I change my mind.
I am pleased to know that the iOS importation of the FM Database file from the Mac results in a local file through iTunes that cannot alter the original Mac DB as I feared accidental changes on the iOS side might migrate to the Mac original or cause file corruption. I am much relieved.
Also, although you didn't address this issue, I found that I could easily delete from iTunes under FM Go any FM DB that I wanted to delete by simply selecting the file or files and hitting the "Delete" key. This tip might help someone else.
I'm am interested in trying to pursue FM Go access to FMP hosted files via Wi-Fi and allowing my wife the ability to have real-time access to the data for her iOS devices. I'll see if I can find more info on this topic. If I can't, I may be back to you with more questions.