Here is a selection of free mobile apps that can generate minute-interval repeating reminders:

• Repeat Alarm ( android )
• Simply Timers ( apple ios )
• Multitimer ( apple ios | android )
• Mindfulness App (Plum Village) ( apple ios | android )
• Mindfulness Bell ( apple ios | android )

If you use a good free one that’s not listed here (or if one of these is no longer available), let us know and we’ll include it.