The Vaccine icon on the Home Screen will display badges if any horse vaccines are overdue (red) or imminent (amber). You can keep a record of the vaccines for each horse by tapping on the Vaccines Icon on each horse's Home Screen.

You can also update a batch of horses via the same screen.

If you tap on the Home Screen icon when the badges are displayed, a summary page will show you which horse has overdue or imminent vaccines.

If you tap on the Home Screen icon when NO badges are displayed, you can select a horse record to branch to.

You can set the number of days warning you require on the 'Stables'->'Preferences' screen. If you don't want to be reminded, just set the days to zero. When you do that a circular red dot appears next to the top right hand corner of the icon, which reminds you that alerting is off.