Knots 3D v2.9.5, v2.9.7 Released

On October 25, 2012, in General, Product Announcements, by Administrator

Knots 3D v2.9.5 for iOS (10/19/12)

Knots 3D v2.9.7 for Google Play (10/24/12)




New in this release:

  • Minor UI changes – Consolidation of Category and Class (renamed to “Type”) into one list separated by section headers. Addition of a “Collection” section header.  Removal of Category/Class selector buttons.
  • Fixed last row not visible/selectable defect

Android Google Play Only:

  • Fixed invalid package issue due to an invalid v2.9.5 apk file being uploaded to Google Play
  • Removed permissions temporarily re-introduced into v2.9.6

Available on iTunes, and Google Play

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There have been several reports that Knots 3D will not install on some older Samsung devices due to cache limitations on these devices. The devices I am aware of are Samsung Captivate and Samsung Galaxy S. The Samsung Captivate is AT&T’s version of the Samsung Galaxy S.

Other Variants of Samsung Galaxy S (Released Early 2010):

  • Samsung Captivate (ATT)
  • Samsung Epic 4G (Sprint)
  • Samsung Fascinate (Verizon)
  • Samsung Vibrant (T-Mobile)

The error message some people are getting: “Error Downloading Insufficient space on device”

This error comes despite plenty of free space on both external and internal storage ie > 1GB. Since Knots 3D is around 33MB at present, why this error message? Well, it turns out that the memory the error message is referring to is the cache partition. The cache size limit on these Samsung devices is 30MB. This means any app, including ours, larger than 30MB, is more than likely seeing this issue. This is a device specific environment thing and completely outside the control of Knots 3D, Google Play, Amazon, etc. There is nothing we can do although a possible workaround (try at your own risk) is mentioned in a link below. If the free version (13MB) of Knots 3D is installing successfully, then that also confirms this might be the cause of the problem.

Some links discussing the issue:

Possible work around found here (try at your own risk):

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We received an email from Google Play yesterday indicating that certain apps on certain devices were failing to launch due to an issue within Google Play.  Google has resolved the issue but requires all of the affected apps to be re-released with an incremented version number.  A copy of the Service Notification has been pasted below.  This is strictly a Google Play issue and does not affect the other app stores (iTunes, Amazon, BN).

We have updated both Knots 3D (v2.8.1) and Knots 3D – Free Knot Edition (v1.1.1) on Google Play and they should be available shortly.

Subject: Google Play Service Notification: APK update required for your apps

Dear Google Play developer,

We have identified one or more of your applications as being affected by a recent issue in Google Play that prevents some users from launching your app. To resolve the issue, you need to publish an update as soon as possible. This will cause your users to receive an update, which will fix the issue.

The underlying cause was an error in the Google Play update logic that resulted in native libraries being incorrectly installed during updates of affected applications for users running Android 4.1 (Jellybean), who installed an update of your application between August 1 to August 5. This affects a small minority of applications, specifically non-forward-locked paid applications that use the NDK and native libraries.

No change to your application is required. Simply increment your versionCode in your Android manifest file, generate a new APK, and publish it through Google Play.

We apologize for the inconvenience this has caused you and your users. The underlying cause has now been rectified, and steps have been taken to ensure similar issues don’t arise in the future.

The Google Play team

© 2012 Google Inc. 1600 Amphitheatre Parkway, Mountain View, CA 94043

You have received this mandatory email service announcement to update you about important issues regarding your Google Play publisher account and published applications.

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We are happy to announce that we have found a way to remove the unused and unnecessary third party libraries (discussed in this earlier post) from Knots 3D! Hurray! Using a tool outside of the Corona framework, we were able to remove the offending libraries from the app and also remove the internet permissions some of those libraries required. Both the paid (v2.8) and free (v1.1) versions of Knots 3D have recently been published to Google Play and and Barnes and Noble and should be available in the Amazon App Store as soon as it is approved. Hopefully this addresses some(all?) of the concerns some folks on the Amazon app store voiced when Knots 3D was the free app of the day. We personally hate ads and made a decision not to have them in even the free version of Knots 3D — so it was with much chagrin we were accused of adware! 🙂

Thanks so much to Darren at Ludicrous Software for taking the time to detail the steps in his blog.

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Knots 3D v2.8 Released

On August 6, 2012, in Knots, Product Announcements, by Administrator

Knots 3D v2.8 for Android(Google Play, Amazon, Barnes & Noble) and iOS
(Released for Google Play and BN: August 6th, 2012)
(Estimated Released for iOS and Amazon: August 16th, 2012)



New in this release:

  • Nine new knots: Diagonal Lashing, Double Coin Knot, Mooring Hitch, Round Lashing, Shear Lashing, Square Lashing, Trefoil Knot, Jury Mast Knot, Monkey’s Fist
  • Several new Categories including “Recently Added”, “Lashings”, and “Decorative”
  • New rope textures
  • Updated several knot descriptions

Android Only

  • Removed unused/unnecessary third party libraries (i.e. Openfeint)
  • Removed unnecessary permissions (i.e. FULL INTERNET ACCESS)

Available on iTunesGoogle PlayAmazon App Store (including Kindle Fire), and Barnes and Noble NOOK Store (NOOK Color and NOOK Tablet)

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Knots 3D Free v1.1 released

On August 6, 2012, in Knots, Product Announcements, by Administrator

Knots 3D – Free Knot Edition v1.1 for Android(Google Play)
(Released on Google Play August 6th, 2012)

New in this release (Android Only):

  • Removed unused/unnecessary third party libraries (i.e. Openfeint)
  • Removed unnecessary permissions (i.e. FULL INTERNET ACCESS)
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Android Permissions and Concerns

On July 18, 2012, in Frequently Asked Questions, General, by Administrator

UPDATE (8/7/12): Third Party Modules and permissions have been removed from Knots 3D.  See details in this post.

We are often asked why Knots 3D requires the following permissions on the Android platform:

  • Full Internet access
  • Read phone state and identity

Knots 3D actually does not use the Internet for anything once it is installed. The reason for the permissions is actually due to the underlying development framework. Knots 3D was developed using Corona SDK which was made by Ansca Mobile and is now known as Corona Labs. These permissions are included by default when the app is compiled and there is currently no easy way to remove them!

So why are they there at all? Good question. The programming framework (Corona SDK) sends statistics on usage (analytics) back to a server ( I have disabled the calls but the permissions are still included when the app is built. Many developers in the Corona community have requested that these be optional and only included if the app actually uses the internet for something. Corona Labs has indicated they are looking at this issue (granted they have been looking at it for some time now).

Some other concerns are that the app is somehow “spying” on you and is what is known as spyware. This perception is due to packages included in Corona that report on statistics ie Flurry Analytics or are api’s into third party ecosystems such as the Facebook social network or Open Feint social gaming platform. Yes, these API’s exist in Corona but in the case of Knots 3D they are not used for anything — the libraries are simply included in the compiled binary. Let me state again — THEY ARE NOT USED! It is unfortunate that Corona includes these in the build of all apps using the Corona framework. If nothing else, it adds unnecessary bloat to the app size. Obviously it gives pause to those that wonder “what are these libraries and why should a knot app need access to the internet.”  Rest assured, there is no nefarious plan to steal your data or give any information to marketers. In the next release (due out next month) I’ll add clarification to the app description regarding the permissions and modules. I think the app is unique and useful, but understand perceived privacy concerns and understand if someone doesn’t want to keep/download the app for that reason. discussion links regarding this issue:

If you have further concerns regarding Permissions, privacy and spyware not addressed above, please let us know on our support page:

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Knots 3D: #1 Free App on Amazon Appstore

On July 18, 2012, in Knots, by Administrator

Thanks to the Amazon Free App of the Day promotion on the Amazon Appstore for Android, Knots 3D is not only the #1 downloaded reference app, it is also the #1 downloaded free app overall! We are very excited about the attention this promotion is giving Knots 3D. The many 4 and 5 star reviews the app has generated are very encouraging and certainly motivate us to keep adding knots and making the app better and better! Thank you all who have taken the time to leave positive, constructive feedback.

Best Sellers in Appstore for Android: #1 Free App Overall (7/18/2012)
Best Sellers in Appstore for Android (#1 Knots 3D)

Best Sellers in Reference Apps: #1 Free App Reference Category (7/18/2012)
Best Sellers in Reference Apps: #1 Knots 3D

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Knots 3D: Amazon Free App of the Day

On July 18, 2012, in Knots, Product Announcements, by Administrator

Knots 3D: Amazon Free App of the Day

Knots 3D is currently featured as Amazon’s Free App of the Day (FAD/FAOTD) for July 18, 2012! If you have an Android device or a Kindle Fire, this is your chance to get a pretty cool app for free!

This is the full 70+ knot version that is normally $1.99.

Sorry for the short notice, Amazon was originally going to do this promotion tomorrow but bumped it up a day.

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Knots 3D v2.7 Released

On June 16, 2012, in Knots, Product Announcements, by Administrator

Knots 3D v2.7 for Android(Google Play, Amazon, Barnes & Noble) and iOS
(Released June 15th, 2012)




New in this release:

  • Five New Knots: Half Hitch, Munter Hitch, Rapala Knot, San Diego Jam, Yucatan Knot (Thanks for the user suggestions!)
  • Updated App Icon
  • Rate Button
  • Handle Nook Home Button event

Available on iTunes, Google Play, Amazon App Store (including Kindle Fire), and Barnes and Noble NOOK Store (NOOK Color and NOOK Tablet)

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