Apple Accepting iOS 4 Apps for Approval - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

Apple Accepting iOS 4 Apps for Approval

215953 ios4 500

Apple has started accepting iOS 4 applications ahead of the June 21st release of iOS 4. Formerly called iPhone OS, iOS 4 is the rebranding of the operating system that runs on the iPhone, iPod Touch and iPad. Version 4 introduces many new features for developers and users that may require modifications to existing apps for full compatibility. Some of the features include:

- Multitasking
- Folders
- Improved Mail App
- Enhanced Enterprise support
- iAds
- iBooks

Apple claims there are over 1,500 new Application Programming Interfaces (APIs) available for developers. iOS 4 will be available to iPhone and iPod Touch owners for free on June 21st. iOS will not run on the original iPhone or 1st generation iPod Touch and will only run with limited features (no multitasking) on the iPhone 3G and 2nd generation iPod Touch.

Related Forum: iPhone

Popular Stories

iOS 27 Next to iPhone

Here's When iOS 27 Rolls Out Today in Every Time Zone [Update: It's Out]

Sunday September 13, 2026 3:00 am PDT by
Update 10:04 a.m.: iOS 27 is rolling out now, though it may take a bit for all users to see it, so keep checking! Apple is about to release iOS 27, which will finally deliver more advanced Siri AI capabilities as well as a variety of other refinements, improvements, and new features to iPhones. It's Apple's biggest software update of the year, and Apple announced at Wednesday's iPhone event...
iOS 27 Icon iPhone

iOS 27 Available Now With These 8 New Features

Monday September 14, 2026 9:00 am PDT by
Update — 10 a.m. Pacific Time: Apple has released iOS 27. During its iPhone 18 Pro and iPhone Duo event last week, Apple announced that iOS 27 will be released widely on Monday, September 14. iOS 27 should be available around 10 a.m. Pacific Time / 1 p.m. Eastern Time today via the Settings app, under General → Software Update. Below, we have highlighted eight new features and...
Apple iCloud Plus expansion hero

iCloud+ Now Includes Apple TV, Apple Arcade, and Curated Apple Music Stations in Over 100 Countries

Tuesday September 15, 2026 1:43 am PDT by
Apple today announced a new subscription initiative that turns paid iCloud+ subscriptions into a broader services bundle in more than 100 countries. In select countries, Apple says every paid iCloud+ plan, including the cheapest 50GB tier, now includes Apple TV and Apple Arcade "at no additional cost," while family sharing extends the storage, TV and Arcade access to up to five people....