Wallaby has released a new Chrome extension and a significant update to its iPhone app designed to help users maximize the amount of cash back and award points earned through credit cards purchases. The new Chrome extension will scan e-commerce pages like Amazon, eBay, Staples and Best Buy and evaluate which of your cards will provide the greatest rewards for your purchase. Wallaby can also be used in combination with Honey, an extension that searches for promotion codes for online purchases. The iPhone app has been enhanced to take into account foreign transaction fees when shopping overseas and it can now also recommend new credit cards you could consider applying for based on your spending habits.