January 23, 2014, 1:47 PM — Here's how you can quickly change the location alert radius in the iOS 7 Reminders app.
1. Open the Reminders app.
2. Set up a new location alert.
3. A map will be displayed with your new location alert.
4. Put your finger on the dot at the edge of the circle to increase or decrease the location alert radius.
You can go as small as 100 meters or as large as 2400 kilometers.
Location-based alerts in the iOS Reminders app are great for letting you know to do something when you get to or leave a specific place, and now iOS 7 makes them even more useful by letting you manually set the distance at which you want to be alerted.
Image credit: iLounge