Apple Accepting iOS 4 Apps for Approval - MacRumors
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

Four iPhone 18 Pro Colors Mock Feature

iPhone 18 Pro Launching Later This Year With These 10 New Features

Tuesday May 26, 2026 6:32 am PDT by
While the iPhone 18 Pro and iPhone 18 Pro Max are not launching until September, there are already plenty of rumors about the devices. It was initially reported that the iPhone 18 Pro models would have fully under-screen Face ID, with only a front camera visible in the top-left corner of the screen. However, the latest rumors indicate that only one Face ID component will be moved under the...
iphone 17 pro black feature

iPhone 18 Pro's Camera Upgrade Will Cost Apple 50% More

Friday May 29, 2026 3:44 am PDT by
The iPhone 18 Pro and iPhone 18 Pro Max's all-new variable aperture lens will cost Apple 50% more than the camera unit used in current models, according to supply chain analyst Ming-Chi Kuo. Variable aperture has been one of the most persistent iPhone camera rumors of the past few years. Kuo first flagged the feature in late 2024, and it has since been corroborated by multiple reports and...
Rivian Explains Why CarPlay Debate Will Become Completely Obsolete Feature

Rivian Explains Why CarPlay Debate Will Become 'Completely Obsolete'

Thursday May 28, 2026 9:48 am PDT by
On the latest episode of The Verge's Decoder podcast, Rivian's software chief Wassym Bensaid explained why the EV maker still refuses to offer Apple CarPlay. In short, Bensaid said Rivian does not want CarPlay to fully take over the software experience. "The challenge with screen mirroring solutions is that they take over every single pixel in the car," he said. Instead, Rivian prefers ...