We’ve seen tweaks in the past like FullForce which essentially transform iPhone apps into full screen iPad apps. Since Apple reassured developers that adding official support for the iPhone 5’s screen would be a snap for most apps through Xcode, we didn’t think full screen support for the left behind apps would be much of a stretch for jailbreak developers.

Turns out it wasn’t a stretch. Just two days after the evasi0n jailbreak is released, a new app on Cydia called Screen Extender brings full screen support to users of the iPhone 5 or 5th generation iPod touch

Like FullForce, you can add any apps you want to Screen Extender, though results will vary depending on how each app is made. Some apps will work perfectly, as if they were made for the 4-inch screen, others will fill the black bars with blank space, and a few will just crash when opened. You can disable apps that don’t work in SettingsScreenExtender.

iPhone 4 linuxWinocm, porting linux to an iPhone 4

The developer behind Screen Extender is rms, a busy hacker who is also working on porting Linux to the iPhone as well as a firmware downgrade method for iOS 6. The developer also goes by @winocm on Twitter.

Screen Extender is a free tweak which is available in the BigBoss repo through Cydia. If you have an iPhone 5 or a 5th generation iPod touch, and you hate seeing your favorite apps letterboxed, Screen Extender is a must-have tweak.

Which apps do you find Screen Extender works best with? Let us know in the comments section.

Update: Ryan Petrich released FullForce for iPhone, which seems to be doing a better job. See our FullForce post for more details.

  • jose castro


  • rosssimpson

    Finally 🙂

  • Johnathan Jennings

    I love this tweak.

  • Doesnt work with GrooveShark from Cydia – Black Bars remain in App (same size as i4/4s)

  • I spent 99 cents on FullForce for Phone by Ryan Petrich. Should have known about this before that. But then it does allow individual apps to be toggled as well.

  • Wheres Jeff?

  • Fullforce for iPhone is not free but it work better.

    • How so?

      • you don’t have to respring all times and i have more apps without bug with full force.

  • Stigga

    Is fullforce less buggy then this?

  • Tyler

    Be careful, messes up some apps, and if the tweak is uninstalled, the apps are still stretched. Even with deleting the app and reinstalling,

    • rosssimpson

      you need to respring

      • Tyler

        Respringed and also restarted. Still stretched.

      • rosssimpson

        They’ve all changed back to normal after disabling and respringing

      • What happens if you uninstall and reinstall the App (original app – not screen enhancer)? I only had it enabled for one App (GrooveShark) but it didn’t work so I removed it and it didn’t seem to have any adverse reactions.

      • Tyler

        I’ve uninstalled the app and also screenextender. I then restarted the phone, I’ve reinstalled the app but the app is still stretched. Tried this multiple times and still having the issue. I’m hoping an update will fix this.

      • The Dev seems like he responds to Twitter – I’d shoot him a tweet and see what he says

      • Put thr phonr in Safe MOde ANd Go to Cydia And UninStall THe Tweak..

  • Siv

    The “where’s Jeff” comments are stupid, clearly we have a new addition to the iDB staff, whom we should respect.

    Thanks for the informative article Mike.

    • Ummm…Jeff earned our respect. While Mike’s article is good, he’ll earn our respect if he continues to post good, informative articles.

      • Siv

        I agree with you that Jeff is a great writer/reviewer, but its not fair to bring him up on some one else’s article. That’s just disrespectful.

        I’ve also seen it happen in a lot of Sebastian’s articles.

      • Yep.

      • True..fair enough

    • Agreed. Thank you

    • As the resident new guy, I have to say I love Jeff’s videos too. 🙂

  • Note: I had to respring to get the apps to take effect.

    • RarestName

      No, toggling the switch off and on will achieve the same effect.

  • m

    whats the difference between
    ScreenExtender and fullforce for iphone?

    • Korr

      According to the description in Cydia, FullForce is only for iPads not iPhone/Touch.

      • m

        Check cydia, Ryan Petrich has released Fullforce for iPhone

    • FullForce for iPhone seems to be compatible with more apps and doesn’t require a respring. Some users have reported issues with Screen Extender. If you have issues with Screen Extender, FullForce for iPhone may be worth the $0.99.

  • If you’re having problems with ScreenExtender, you might want to have a look at FullForce for iPhone. See our post about it here

  • Sunny

    What for gridlock. Its not working iphone goes in safe mode and other tweak like gridlock ?

  • Helps in some apps. Makes others worse. Very cool app but needs more work.

  • wadjj

    I tested, this doesn’t work as expected for appshopper, the list is stretched but the bottome navigation buttons stop registering touches, ie, all the buttons on the bottom won’t work

  • How does this work with gpSPhone?

    • I’m gonna try it very shortly but just wondering if anyone has already done this?

  • Does “ScreenExtender” and “Fullforce for iPhone” the same? If not, which of the two tweaks do you like more?