1.빠른QR코드스캔
 -play.google.com/store/apps/details?id=com.elf.android.qrcode.pro

2.소음측정기
 -play.google.com/store/apps/details?id=com.elf.android.soundmeter

3.조도측정기
 -play.google.com/store/apps/details?id=com.elf.android.lightmeter

4.손전등
 -play.google.com/store/apps/details?id=com.elf.android.flashlight

5.금속탐기지
 -play.google.com/store/apps/details?id=com.elf.android.magnetic