I just got tipped by an anonymous reader about a nice little trick that will convert iPhone app icons that haven’t been optimized for the iPhone 4 Retina Display to high resolution icons. This will require a jailbroken iPhone and a couple applications.

Step 1: Download iFile from Cydia and Resize-Photo from the App Store.

Step 2: In iFile, navigate to the folder of the application of which you’d like to optimize the icon. The application folder is usually called appname.app.

Step 3: Save the app icon to your camera roll. The app icon size should be 512 x 512.

Step 4: Open Resize-Photo and change the application icon size from 512 x 512 to 114 x 114 and save it.

Step 5: In iFile, navigate to your photos folder and copy the new icon you just resized.

Step 6: Now go back to your app folder and look for the application icon and rename it to something like IconBackUp.png, just in case something goes wrong.

Step 7: Still in the application folder, paste the resized app icon and name it Icon.png, or whatever the app icon was called in the first place.

Step 8: Reboot your iPhone. You should now have a high resolution icon.

Apparently this doesn’t work with every application icon but it should work with most of them.

Pretty nice trick, isn’t it?

  • Kev

    Wow. Would take me 3 years to do them all!

  • i liked batch conversion in ifranview

  • dannyswrld

    You can also do it from a computer. Apparently you don’t even have to resize the 512 x 512 icon. Granted, I found this out after I resized all my icons. But I tried it on ‘Outside’ app and it worked fine. Hopefully someone releases an app on Cydia soon that does this automatically.

  • Pn2bade

    Someone should make make a program that automatically does this and creates the correct file name for themes. Then upgrading themes would be a snap.

  • Saice

    is this possible to do it with SSH? where is the application folder btw?

    • Z

      You can find the location of each app folder in SBSettings

  • Saice

    @dannyswrld can u explain how did u do it? what do u mean u dont even need to resize the icon? thanks

  • akag

    512×512 ? They are 57×57. So, by increasing size x 2 both H and V, we create one with 4 times the pixels. So, scaled down on high rez screen it looks better?

  • dan

    The craziest thing happened to me today. I had to reinstall Cydia and the icon used to be retina ready and now it looks awful… what happened?

  • Ryan

    What you really want to resize is the itunes artwork file which is 512 x 512. Resizing the actual icon won’t help at all.

  • dan

    In iFile, navigate to the folder of the application of which you’d like to optimize the icon. The application folder is usually called appname.app.

    ???? How does one do that???

  • dan

    this is bullshit the explanation is not complete! I got lost just trying. To navigate? Hell the poster should include the extensions. The least he could do… lazy? C’mon indulge us?

  • Xsnow

    /var/stash/themes is where all themes are installed/located/edited. Remember that this is a CAsE SEnSiTive file system! Be careful with Icon names!

  • zeb

    Hmm can’t seem to copy the icon in iFile

    Step 5: In iFile, navigate to your photos folder and copy the new icon you just resized.

    Anyone know how

  • Xsnow

    Var/mobile/media/DCIM/100APPLE is where camera roll is located forgot to add that

  • luvmyiph

    dan, the same thing happened with my Cydia icon… went from retina to awful. PET PEEVE of mine! ahhhhhhh

  • Darren

    Or you can copy iTunes_artwork in app file via ifile and rename it to whatever icon is ,works on tom-tom and heyway and it’s alot quicker!

  • Or juat use iRetiner that does all of the work for you. Search in YouTubw for a tutorial.

    • Juan

      And even easier is iRetiner GUI. No need for SSH or Mobile Terminal. It’s in Cydia and it’s free. =)

  • Guest

    aasd