Depends on how you use the third-party programs. I use Legacy Family Tree and it has almost a separate program to work with the FamilySearch syncing and ordinance tracking. If you put your file on a file-sharing place (DropBox, Google Drive, Microsoft OneDrive, etc.) then anyone in the family could access it and see what work needs to be done as it has automated filters for missing ordinances. Everyone would still need to log in to FamilySearch with their own account, though, so you'd just be picking them up from the general tree, rather than from a particular person's temple file.

Another option is to use the Helper ability...especially through the Helper Resources. Each of the kids could log in to their father's account in Helper mode and just print ordinances that he has stashed there. If they use the Helper Resources version, they would be able to save the login information and not have to remember the Helper Number.

I'm really not sure that development of yet another app is warranted here - I think we've largely got the tools we need. An element that seems to being missed in this is discussion within families. I took my first computer programming course in 1966 with Fortran IV, punch cards, and no such thing as a screen or monitor of any sort. So I'm very much aware and in favor of computer technology to do all sorts of things. But I've also become aware of the fact that as a society we're not communicating with one another, even within families. Devices and short messages have substituted for real family discussions. Even if the kids log into dad's account, there's also mom's account, where she's got her own separate ancestry (one half of where the kids came from!) - why leave her out? But that entirely leaves out an discussion as to who these people are.

Instead, I submit that we may have all the tools we need in this regard to get this done in the "Temple" pull-down menu at the top of our individual FamilySearch home screens, where we find "Reserved" and "Ordinances Ready." Instead of fragmenting the work within families to a rather mechanical or list-based work, how about using a family home evening, for example, to sit down as a family and actually LOOK at those lists - together - with dad (the priesthood leader) leading the discussion of who's available for their ordinances to be done, and also making sure mom is very much a part of that discussion. Then lists can be easily printed from the "Temple" menu, with agreed-upon assignments for each family member, as well as a discussion of who those people really are, what they accomplished, their life circumstances, etc., so that when each family member holds an ordinance card as they approach an actual ordinance in the temple, they're truly thinking of that ancestor, rather than just "doing a name." And the sharing of names with others in the ward could also be discussed in that family meeting, at which time transfers of names could be accomplished. Of course in a family with a single mom, she leads the family in the same manner as a two-parent household with a priesthood holder present, and has the same importance.

I really do have concerns that many have moved too much toward automating the work of the Lord in providing sacred ordinances for our very real ancestors, and that the concept of a family council has largely been replaced by a text message "society" involving text messages from an upstairs bedroom down to the den, kitchen, or living room, and back. Let's talk among ourselves, as families, about these people we call our ancestors, and coordinate their work as a family.

I have my husband's entire family line attached to me in Family Tree through him. This way the family can use one helper account and see all the work on both sides.

I was there too, it was great! He said we'll also have ward and stake groups so you can help your local families if you dont have a name of your own. They're doing so many great things!​