This is the best and highest accuracy OCR app with offline capabilites.

Language Support : Recognizes Latin characters (Does not support regional languages due to offline capability)

User interface is quite easy to use and understand. It is simple yet efficient.

Main Features -

Supports photos from Gallery
Supports photos from Camera
Copy results by long press or single tap on copy icon
Save results in text file
Share results in other applications
Share via email

Scan results are located inside android > data > "com.offline.imagetotext.ocr" folder.

Save your time by simply using this app!