API Edit mobile forms

Hi guys.  I used the text below to create a button to update a text field.  It works perfectly on desktop but on mobile it updates the field several times which I see since I track changes to that field.  Any idea why it works on desktop but not  on mobile?

var text Approve = URLRoot() & "db/" & Dbid() & "?act=API_EditRecord&apptoken=myapptoken&rid=" & [Record ID#]
& "&_fid_295=Yes"; // change the 99 to the field ID# of the checkbox field 

var text RefreshPage =  URLRoot() & "db/" & Dbid() & "?a=doredirect&z=" & Rurl();