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  • Enable the Nitro JavaScript Engine in Third Party Apps With 'Nitrous'


    In case you have been left out in the dark, Mobile Safari gained the Nitro JavaScript engine in iOS 4.3. The Nitro JavaScript engine in iOS 4.3 made Mobile Safari capable of loading JavaScript up to two times faster than Mobile Safari in iOS 4.2.1 could. One of the biggest beefs with third party Web browsers from Apple's App Store is that they lack this Nitro JavaScript engine because Apple doesn't allow the developers to tap into it.

    If you’re a hardcore fan of iOS applications such as Facebook or Google Chrome, maybe it’s time you get some Nitro JavaScript love added into the mix to help increase your speed. A new jailbreak tweak called Nitrous by iOS developer Joe Jordan gives third party applications access to Apple’s Nitro JavaScript engine by adding the dynamic code-signing entitlement to third party applications.

    Displayed above is a screenshot of the jailbreak tweak’s preferences pane, which can be found in the Settings application just after you install the tweak from Cydia. From the preferences pane, you can enable all of the third party applications you want to take advantage of the Nitro JavaScript engine. Turning them back off again will disable the Nitro JavaScript engine for the applications you turn off.



    As shown above, the jailbreak tweak does increase your speeds by quite a good amount. The browser used in the example is Google Chrome for iOS and before installing the tweak, Google Chrome scored 11614.3 milliseconds in the SunSpider JavaScript benchmark test. After installing the tweak, the test benchmarked 3587.4 milliseconds, which is a substantial drop in loading time.

    If you wouldn’t mind the extra performance boost that might help you load pages a second or two faster in third-party applications than the other guy, then you can grab Nitrous from the Cydia store right now for just 99¢.

    Name: Nitrous
    Price: 99¢
    Version: 1.0-1
    Requirements: iOS 5
    Repo: BigBoss
    Developer: Joe Jordan
    Editor's Rating:  4/5

    Sources: Cydia
    This article was originally published in forum thread: Enable the Nitro JavaScript Engine in Third Party Apps With 'Nitrous' started by Anthony Bouchard View original post
    Comments 50 Comments
    1. RONZO77's Avatar
      RONZO77 -
      You need to check your Internet speeds. Do you have winterboard and other apps that might be taking up a lot of memory. All the things u discribe point to slow Internet and memory bogged device. Check device memory usage and Internet speeds.
    1. dansaDisco's Avatar
      dansaDisco -
      Relax guys. The tweak was broken at first for some, sure. But the dev was very fast with supplying a fix through his private repo, so I don't see the reason to throw a huge argument about it..?

      Take it easy, seriously
    1. 0verd0sed's Avatar
      0verd0sed -
      Using the 1.0-9 version here, 65 apps, still crashing when entering the Settings > Nitrous.
      Tried removing and reistalling the package.
      Do you have any ideas guys?

      iPhone4 iOS 5.0.1 (9A405)

      Thanks in advance, Daniel
    1. jpbl1976's Avatar
      jpbl1976 -
      Quote Originally Posted by 0verd0sed View Post
      Using the 1.0-9 version here, 65 apps, still crashing when entering the Settings > Nitrous.
      Tried removing and reistalling the package.
      Do you have any ideas guys?

      iPhone4 iOS 5.0.1 (9A405)

      Thanks in advance, Daniel
      Any reason you haven't updated to 5.1.1? It may be the reason for your crashing. Just update to 5.1.1 and JB again. I realize it'll eat up some time for you but you'll have to balance that with being able to use the tweak.
    1. joedj's Avatar
      joedj -
      Hey,

      Very few users have reported any problems with 1.0-9. Please feel free to email me, preferably with the crash logs from /var/mobile/Library/Logs/CrashReporter/, and we can try to figure out what the issue is.
    1. Amadomon's Avatar
      Amadomon -
      Quote Originally Posted by mattoligy View Post
      Not sure what all the hypes about, just bought this tweak and in terms of user experience it barely makes a difference! Websites still load slow and scrolling is still jerky, on the iPad 3 too... It's all well and good showing us a bunch of numbers and then people are like OMG those Numbers look amaaaaaazing, well in reality when actually using a website via a 3rd party app, Safari still absolutely wins hands down! I'm not budging from it!

      Not worth paying for!
      I disagree entirely. This tweak is the best thing since, I dunno, SBSettings. It works great on my iPad 3 and my 4S, and at $.99 to improve both devices, it's the best dollar I've spent in a long time.
    1. 0verd0sed's Avatar
      0verd0sed -
      Quote Originally Posted by jpbl1976 View Post
      Any reason you haven't updated to 5.1.1? It may be the reason for your crashing. Just update to 5.1.1 and JB again. I realize it'll eat up some time for you but you'll have to balance that with being able to use the tweak.
      Yeah so, I did a full restore to 5.1.1, before restoring all the apps I installed the tweak and the Chrome only, went to settings and it did not crash, turned on the switch for Chrome and it worked great.
      Until I restored all my apps back (ipa's only) and when I enter the tweak settings it crashes again.
      Any ideas?

      Quote Originally Posted by joedj View Post
      Hey,

      Very few users have reported any problems with 1.0-9. Please feel free to email me, preferably with the crash logs from /var/mobile/Library/Logs/CrashReporter/, and we can try to figure out what the issue is.
      Hey,

      Please look at my answer above please, what crash log do you need exactly? What's the files name you need?
      I really want to continue using the tweak and it would be awesome to get some help with it.

      Thanks in advance, Daniel

      EDIT : It works great now that Nitrous 1.0-12 came out!!!
      Thanks a lot joedj!!
    1. brodimus's Avatar
      brodimus -
      Wow, great tweak. Noticed the speed increase instantly in iCab and ProTube, which now has it built-in.

      Apple, you guys are such dicks.
    1. Geniuss's Avatar
      Geniuss -
      Still wondering why my chrome browser is crashing constantly... I am using chrome download manager and just wondering if anyone knows tweaks or apps that directly conflict with this tweak.. When it works it works great I notice the difference.. But I go on sygex.Us it crashes. Other sites too.. Any ideas people ??
    1. Gucci.Pad's Avatar
      Gucci.Pad -
      would it hurt to turn on nitrous for all my apps?
      i just turned it on for all my apps, about 30 of them. would that slow things down?

      iPad 1, iOS 5.1.1