A couple of weeks ago, Tim Challies reviewed an app called PrayerMate:
I say it without hyperbole: PrayerMate revitalized my prayer life. It has been at least a couple of years since I made the move from organizing my prayers in a book to organizing my prayers in an app, and, at least for now, I don’t ever see myself going back. I know that praying from an app is not for everyone, but for me it has made all the difference. Let me tell you how I use it.
It wasn’t hyperbole. I’ve been using this app ever since and finding it extremely helpful. It’s easy to quickly add a prayer request as soon as you hear of a need, and you can do so without worrying that your list will become unmanageably long, because you control how many requests you’ll pray for in each category per day and/or choose which days any one particular request will appear.
I encourage you to read Challies’s explanation of how he uses the app and then get it for yourself.