Stressed out already thinking about the Holiday shopping season? Our expert app knowledge is here to help. Grab your favorite smartphone device–be it iPhone, iPad or Android–and download these must-have apps to make your holiday shopping as smooth and worry-free as possible. From high-end fashion to preparing for the inevitable returns of unwanted gifts from relatives, these shopping apps will help you survive the season. Be sure to follow our Raizlabs Twitter and Facebook feeds, as well as our blog, to keep up with all the latest happenings in mobile.

Rue La La – For the well-dressed, fashion-savvy person in your life look to Rue’s iPad application. Find a curated selection of fashion, accessories, footwear, home, travel, wine, gourmet food, local services, children’s, vintage, and more – up to 80% off retail. New brands are available daily and stay open for only a limited time.

Kickscout – Share cool products and fashions with friends in real-time as you shop in stores. Kickscout allows you to get reviews, comments and feedback in real-time as you are out and about.

Fab – For the design nerds who want a daily does of design inspiration, Fab will meet your fix. Discover everyday products from designers all over the world and share your favorite designs.

Etsy – Buy directly from independent, creative businesses. The Etsy app lets buyers browse your activity feed and explore treasuries, search by category, message back and forth with sellers, and purchase items. As a seller, you can list new items, renew or edit draft listings, view shop stats, check up on orders, and get alerts when orders are placed at your shop. The app is a streamlined extensions of your online Etsy experience.

Square Wallet – No more fumbling for cash or cards. Square Wallet holds credit and debit cards, loyalty cards, receipts, and allows customers to earn rewards.

Monogram for iPad – Monogram is a professionally curated fashion magazine combining editorial content with commerce. It’s a personalized fashion magazine where everything you see is available to purchase.

Better Christmas List – Keep on time and budget with the ultimate Christmas list app. Create separate groups for family and friends, set and track budgets by group or individual person, and even track what store an item was purchased from. The app also allows you to set a “Wrapped” status when gifts have been wrapped up and set beneath the tree!

ReturnGuru – Have trouble keeping track of receipts and return policies? ReturnGuru allows you to save your physical and digital receipts all in one place, so you can access them whenever you need. Just take a picture of your store receipt, whether from a physical store or while shopping online. ReturnGuru automatically creates a digital version of the receipt.

RedLaser – Scan major retail barcodes and this app searches hundreds of local retailers to compare prices and find the nearest location for the item. RedLaser even lets you scan books and searches if they are available at your local library!

CouponSherpa – Keep track of hundreds of in-store coupons for merchants right on your iPhone or iPod Touch. CouponSherpa scours the internet daily to bring customers the best in-store coupons and often offers exclusive deals just for their users.