Hi Patsym, if you both want to take a look at just one of your FICO scores, in this case your Equifax score, then Score Watch would do the trick. Score Watch only monitors your Equifax credit file and FICO score and you would indeed both have to sign up for it. We have a free trial for 30 days, so it's a good option if you just want to check things out first.
Whether you sign-up for Score Watch or not, I would also suggest that you go to www.annualcreditreport.com to get your free credit reports from all 3 bureaus. By law you are entitled to receive your free credit report from each of the 3 bureaus once per year and this is the site where you can get them. These reports do not come with FICO scores, but at least you will be able to make sure that all the information is consistent and correct across all 3.