Today’s Reader Photo of the Day is this largemouth from Maricopa County, Arizona, submitted by Justinhamblin to Catchbook, our fishing app for iPhone. According to Justin the fish weighed 10 pounds and was caught using a lipped crankbait.

Catch Data:

Date: August 20, 2013

Time: 9:11 am

Weather: Cloud cover: 4 percent; Temperature: 92 degrees; Barometric pressure/trend: 29.88 inches and stable; Winds: NE 2 mph.

Catchbook uses photos of fish you catch to automatically record the date, time, and weather conditions present, and plots your location so you can pattern your spots all season. It also lets you share your catches with trusted fishing buddies so that everyone you fish with can have more success.

Download Catchbook for free from the iTunes store, or visit for more details.