We can't wave a magic wand and make your shared parenting situation completely stress-free, but we can recommend these co-parenting apps that streamline family calendars, schedules, and communication.
N. Peterson, and M. Zimmerman. American Journal of Community Psychology, 34 (1-2):
129-145(September 2004)September, 2004
DOI 10.1023/B:AJCP.0000040151.77047.58
Pages 129-145.