Come December 10, Amazon is giving users an additional 5 per cent discount (up to $5) off Amazon’s price on up to three qualifying products in eligible categories, including electronics, toys, music, sporting goods and DVDs. The Price Check by Amazon is a free app available for iPhone and Android.

“The ability to check prices on your mobile phone when you’re in a physical retail store is changing the way people shop,” said Sam Hall, director of Amazon Mobile.