I am working on a dictionary App for Android and iOS. Where I want to have feature like place the camera on a word and the app will recognize the word and will show the meaning of that word.

For example, the "U Dictionary" app is a full fledged working app with such functionality. Can someone please let me know which API needs to be used? Is it available FREE?

1 Answer 1


It appears there was an attempt at a free Android OCR library using the Tesseract OCR engine here. However, the code there seems to be rather old (6 to 7 years), and I’m not sure if anyone tried to update it or build a newer free library. I also don’t know if there’s any documentation for that library.

As for iOS, it appears someone created a wrapper for Tesseract OCR to work on iOS, as explained by this article..

  • Thanks Amin for your reply and answer. That answers my query. Cheers, Tanuj K. Jan 4, 2019 at 8:47

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