Apple handheld devices are programmable and portable hardware created by Apple. Over time, Apple introduced a mobile operating system known as iOS, and two new devices were produced: the iPad and the iPhone.
iPod (click wheel)
iPods with click wheels, which include the iPod classic and older generations of the iPod nano, are portable music players that also have the ability to play videos, display photos, and play games. These models were gradually displaced by Apple's own iOS devices, and, as of 2015, have been completely discontinued.
Sonic the Hedgehog (iPod port)
In 2007, Sega released a port of the original Sonic the Hedgehog for click wheel iPods. However, this game is no longer available in iTunes, as Apple has eschewed the availability of iPod games in order to focus on iOS as a gaming platform. If one has already saved a local copy of the game, it can still be synced to an unlimited number of iPods.
The game was compatible with all iPod classics starting with the 5th generation (informally known as the iPod video). It was also compatible with the 3rd-5th generations of iPod nanos.
The game itself was developed by Backbone, the same developers behind the Sonic Rivals series. It is a straight port of the Genesis/Mega Drive original, with the added ability to play any song from the user's music library in-game, a feature shared by all iPod click wheel games.
The iPod Touch was introduced in 2007 as a low-cost, budget alternative to the iPhone. As it runs iOS, the same operating system as the iPhone, it can run largely the same apps. Sega has released multiple games for the platform, including many emulated Genesis games and certain original ones, including games from the Sonic series.
The iPad is a tablet computer. There are two basic model types: one with Wi-Fi capability and one with 3G capabilities, similar to the PlayStation Vita. Several versions have released over the years, with new functions like the camera and the ability to work with the Apple Pencil.
The iPhone is a smartphone created by Apple. It was the first iOS device to be introduced (as a result, the earliest versions of iOS were called "iPhone OS"). Unlike the iPod touch and iPad, all generations of the iPhone have at least a built-in camera and a built-in microphone. The iPhone, while very similar in capabilities to the iPod Touch, costs more and features more powerful internal components.
List of Sonic games on iOS devices
- For the list of Sonic games on iOS devices, see iOS.
Not all iOS devices are compatible with all of the games listed. A good prerequisite to playing all of these games would be a 5th-generation iPod touch or newer, iPad 5th generation or newer, and an iPhone 5 or newer, all running iOS 6 or its future newer versions. The optimal devices for playing Sonic games on iOS (with the best compatibility) seem to be the iPad 6th generation, iPhone 6, and iPod touch (5th generation) running iOS 10 or newer.
- In the iOS version of Sonic the Hedgehog 4: Episode I, Sonic's full speed running animation can only be achieved by running downhill at a very fast speed. This is leftover from the beta version of the game, and it was changed for the console and iPad versions, but left intact in the iPhone/iPod Touch version.
- The iOS version of Sonic 4: Episode I includes other holdovers from the beta, including the level select screen and the two levels cut out of the console versions.
- Presumably due to technical limitations, Sonic the Hedgehog 4: Episode II does not use dynamic shadows in-game. In addition, all cutscenes were recorded from the console version and displayed as pre-rendered videos in the iOS version instead of being rendered in real-time; the cut from the video to stage is especially noticeable in the first act of Sylvania Castle Zone. In the Special Stages, Sonic and Tails' reflections cannot be seen. Instead, their shadows are shown.
- Older devices, such as the iPod touch (4th generation) and the original iPad, do not display Sonic and Tails' facial emotions. This is most noticeable during the Special Stages, but also during gameplay.
- Sonic at the Olympic Winter Games has been pulled out of the App Store, as has Sonic 20th Anniversary, though for different reasons.
- In 2015, the Sonic the Hedgehog 4 games were removed due to incompatibility with recent iOS versions. In 2016, Apple brought back the games to use their latest Signing Certificate.
- In Sonic the Hedgehog 4: Episode I, Super Sonic's music is replaced by the Invincible theme. The iPod/iPhone version does not have the World Map, while the iPad version's World Map has no animation. The only way to see Episode 1's world map as seen in the console versions is by playing Episode Metal from Episode 2, which does contain the same world map as the console versions.