Download Discounts for Nov. 22: Rednecks vs Aliens, Knowtilus Navigator, SecretPhoto

Today’s Download Discounts includes a mix of free apps. We’ve got an alien-bashing, redneck-fueled tower defense game, an app that will password-protect any photos you wouldn’t want discovered by nosy iPhone snatchers, and an iPad web browser that’s filled with cool featuers. Check them out below.

Rednecks vs. Aliens (iPhone) Free (was $0.99)

The classic, never-ending struggle between rednecks and extraterrestrials rages in this tower defense game, which you can snag for free for a very limited time. Defend your redneck farmhouse from waves of outer-space invaders and buy upgrades as they get stronger.

You’ll find lots of different guns and enemy types in this app, and while, yeah, there are many tower defense games out there, this one’s free — so why are you complaining? Go download it!

Knowtilus Navigator (iPad) Free (was $0.99)

Knowtilus is primarily a multi-view web browser that lets you check out up to three sites simultaneously. It contains a lot of cool features — like an RSS reader and the ability to doodle on images and even whole web pages — and also includes translation and text editing.

You can also use Knowtilus to download and read websites while offline on your iPad as well, allowing you to check out content and read articles even when you don’t have access to a W-iFi or 3G connection.

SecretPhoto (iPhone) Free (was $0.99)

SecretPhoto is free right now, which is why it might be worth a download. It’s one, useful, key job is to allow users to password-protect photos and albums on their iPhone, keeping them away from prying eyes.

Look, we’re not judging — sometimes you have things on your iPhone you wouldn’t like little children to stumble upon. Or, maybe you’ve been getting copies of secret government documents that you need to send back to headquarters, but you believe you’re being pursued by enemy secret agents. Whatever the need, SecretPhoto will protect your images from unwanted viewership by whoever might have gotten hold of your phone.

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