Checkmate is a savings app with over one million users that have saved $$$ on brands like Amazon.
The Checkmate extension automatically applies Amazon discount codes, Amazon coupons and more to give you discounts on products like Replacement 3DS 2DS Battery: CTR-003 Compatible with for Nintendo Old 3DS, 2DS, 2DS XL Game Console Lithium-ion Battery with Tool (Not for New 3DS, 3DS XL).
Checkmate users have also been loving these products from Amazon.
Users have been saving products like this to their collections.