The Amazon Appstore turned 1 today, and to celebrate this milestone, they will be offering tons of apps at discounted prices. Starting today, Amazon will feature a hit app at up to 67% off followed by two apps tomorrow, three apps the next day, and so on. You’ll find plenty of user favorites such as Fruit Ninja, Wolfram Alpha, Splashtop Remote Desktop, and many more, on sale in Amazon’s week of deals. If it’s one thing the Amazon Appstore has been good for, it”s free and discounted apps.

On top of the great app deals you’ll find, Amazon is also giving away eight Kindle Fires in the Amazon Appstore for Android Birthday Giveaway. Amazon is proud of their success over the past year and gives us quite a look back at how developers fared by having their apps made available on their Appstore.

“It’s been an exciting first year in the Amazon Appstore and we look forward to many more,” said Andrew Stein, director of Global Mobile Business and Products at PopCap Games, Inc. “All of our games, including the megahit Plants vs. Zombies, have done extremely well in the Amazon Appstore, for both Kindle Fire and other Android devices; it’s a testament to the great Amazon Appstore shopping experience resulting from its user-friendly design and comprehensive catalog.”

“We expected that the Amazon Appstore would be a success and it’s been evidenced in the growth of the revenues since the launch,” said Adam Flanders, senior vice president of Sales & Marketing at Glu Mobile, Inc. “We have seen revenues from Amazon grow by over 1,000 percent in the four months since the Kindle Fire launched alone, and Blood and Glory recently reached the #2 spot in Top Selling Games. Glu is thrilled with the momentum behind Kindle Fire and the Amazon Appstore’s strong platform, global customer base, and exceptional merchandising capabilities.”

“We were grateful that we were able to bring Dr. Seuss, The Berenstain Bears and Mercer Mayer’s Little Critter apps to the Amazon Appstore from the very beginning,” said Michel Kripalani, president of Oceanhouse Media. “Amazon provides visibility to a huge customer base. We’ve seen increased engagement with the apps over the last year, especially since the launch of Kindle Fire.”

“As Pandora continues our mission to provide people with personalized music they love, being a featured app on Kindle Fire has given us an exciting new platform to connect with our listeners, both existing and new, and we’ve been impressed with the high engagement rate we’ve seen on Kindle Fire,” said Simon Fleming-Wood, chief marketing officer of Pandora Media.

“At Quickoffice, we’ve experienced a massive lift in our Android app sales since the launch of Kindle Fire. The Amazon Appstore has been a great showcase for our app, and we’ve seen significant gains in conversion rates compared to other app stores based on the integrated Amazon buying experience,” said Alan Masarek, CEO of Quickoffice, Inc.

Amazon also dishes out some interesting statistics about the Appstore’s first year:

• Amazon Appstore has grown its selection nearly eight-fold since launch, from 4,000 apps to over 31,000.
  In its first year, the most downloaded paid app in the Amazon Appstore was Cut the Rope, followed by Angry Birds (Ad-Free) and Where’s My Water?; the most downloaded free app was Angry Birds Free, followed by Netflix and Solitaire by MobilityWare.
• Amazon Appstore offers a paid app for free every day. If a customer had downloaded every Free App of the Day since launch, they would have saved nearly $1,000.
• The paid app with the most 5-star reviews in the first year of the Amazon Appstore was Where’s My Water?, with over 3,000; the free app with the most 5-star reviews was Blood & Glory, with over 4,000.
• In the Amazon Appstore’s first year, customers spent more than 7,700,000 minutes test driving apps; Bubble Buster was the most test-driven app, followed by Amazon MP3 for Android with Cloud Player and Memory Trainer.
• Over the past year, the most popular app category for customers is games, followed by entertainment and productivity. Some of the most popular apps include Angry Birds, Fruit Ninja, Netflix, Hulu, Pandora, QuickOffice Pro, CalenGoo and Exchange by TouchDown.

Top Paid Apps (over the last 12 months)

1. Cut the Rope

2. Angry Birds (Ad-Free)

3. Where’s My Water?

4. Angry Birds Rio (Ad-Free)

5. Angry Birds Seasons (Ad-Free)

6. Plants vs. Zombies (Kindle Fire Edition)

7. Fruit Ninja

8. SCRABBLE (Kindle Fire Edition)

9. UNO (Kindle Fire Edition)

10. TETRIS

Top Free Apps (over the last 12 months)

1. Angry Birds Free

2. Netflix

3. Solitaire

4. Fruit Ninja Free

5. Angry Birds Seasons Free

6. Bubble Buster

7. Little Piano Free

8. Roller Lite

9. Jewels

10. Hangman Free

For more information on Amazon’s Appstore birthday celebration, hit up the source links below.

, Amazon 2

• SourceAmazon 1