Wednesday, July 18, 2012

Amazon Appstore's Free App of the Day, 7/18/2012: Knots 3D has promised to make a paid app free every day in the Amazon Appstore, and today's app is Knots 3D.

Knots 3D is priced at $1.99 in Google Play, and is normally priced at $1.99 in the Amazon Appstore. As we've noted before, there are sometimes differences in pricing and availability between the two marketplaces.

Knots 3D is described as follows:
Knots 3D, a how-to knot reference app, will give you a whole new perspective on knots! Have you ever wondered what a knot looks like rotated 40° or maybe 90°? Or maybe you want to see what a Trilene knot or Constrictor knot looks like from the back? Use your finger to spin the knot and see how it looks from any angle in 3D!

Choose from over 70 knots and see how they're tied in incredible detail. Watch the knot draw itself and pause the animation to see where the virtual rope goes in and out and around. (Something about a rabbit and a hole and a tree right? ) Zoom in on the knot to get a closer look or flip it around for another perspective. Can your old school knot app do that?!

Each 3D knot has detailed information including tying pointers, strength and reliability, structural info, and Ashley reference numbers (ABoK) and occasionally the history behind the knot.

The knots are arranged by both Category (Boating, Climbing, Fishing, Scouting, etc) and Class (Bend, Loop, Stopper, etc). If you find a knot you like or want to come back to later, add it to your Favorites list for quick reference.

Albright Special, Anchor Hitch, Ashley’s Bend, Blood Knot, Bow Knot, Bowline, Bowline on a Bight, Buntline Hitch, Carrick Bend, Cats Paw, Clinch Knot (Improved), Clove Hitch, Constrictor Knot, Cow Hitch/Larks Head Hitch, Double Overhand Knot, Double Sheet Bend, Figure 8 Knot, Figure 8 Bend, Figure 8 Loop, Fisherman’s Eye, Fisherman’s Knot, Granny Knot, Grief Knot, Jar Sling Knot (Spanish Hackamore), Lanyard Hitch, Lariat Loop, Loop Knot, Overhand Knot, Perfection Loop, Rolling Hitch, Round Turn & Two Half Hitches, Running Bowline, Running Knot (Slip Knot), Square Knot (Reef Knot), Sheepshank, Sheet Bend, Stevedore’s Knot, Surgeon’s Knot, Surgeon’s Loop, Taut Line Hitch, Tiller’s Hitch, Timber Hitch, Thief Knot, Trilene Knot, Two Half Hitches, Uni Knot, Uni-to-Uni Knot, Water Knot, Zeppelin Bend, Alpine Butterfly, Trucker's Hitch, Prusik Hitch, Palomar Knot, Arbor Knot, Ashley Stopper, Crown Knot, Backsplice, Double Bowline, Fireman's Chair, Handcuff Knot, Icicle Hitch, Water Bowline, Cleat Hitch, Figure Eight Follow Through, Tensionless Hitch, Half Hitch, Munter Hitch, Rapala Knot, San Diego Jam, Yucatan Knot
Knots 3D is rated at 4.4 stars in Google Play, and at 4.6 stars in the Amazon Appstore.

5% - 15% Off Select TVs
The 4.8 star rating in Google Play comes with 85 overall, while the Amazon Appstore rating has only eight ratings overall, and still no spoof 1-star ratings, so we're expecting it to drop.

In Google Play, there is also a free version that has a 4.7 star rating and 183 reviews. That said: "buy" it now while it is free.

Knots 3D is also available in the iOS App Store, for $1.99. It's rated at 5 stars for the current version and 4.5 stars overall.

Official Licensed T-Shirts
Those who are considering "buying" a Free Amazon Appstore app might want to consider what it means to developers. opened up the Appstore despite a lawsuit by Apple, which has previously trademarked the term "App Store." Microsoft has filed an appeal against that trademark, saying the term is too generic. has responded to the lawsuit in the same manner.

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