You can measure the length of fish on your smartphone without any other tool with Augmented reality (AR) when fishing.
This fish measure app ( fish ruler) is simple and easy to use.
You do not need any physical fishing ruler or fish measurement tool. Augmented reality(AR )technology makes it possible.
You can measure a fish length by a few touch on screen of smartphone without real fishing ruler.
Features of Fish ruler (Fishing ruler)
1. do not need any other tools, only smartphone.
2. simple and easy to use.
3. not bad accuracy( ~1/2 inch margin of error. Error is different depending on the phone and the environment)