Yes, Snapchat requires iOS 8 or later to function properly. If your device is running an older version of iOS, you may need to update your operating system to use the app. However, it's always a good idea to check the App Store for the latest compatibility requirements, as they may change with new updates.
No, you cannot get Snapchat lenses on an iPhone 4S. The device does not meet the minimum hardware and software requirements needed to support Snapchat's augmented reality features, including lenses. Snapchat requires iOS 10 or higher, and the iPhone 4S can only be upgraded to iOS 9.3.6.
The Samsung Brightside is more a feature phone rather than a smartphone. Snapchat can be installed on devices that run on iOS and Android operating systems.
Snapchat is an app available for smart phones. It is currently available for IOS and the Android softwares. Snapchat uses your data plan to send and receive messages, therefore, it will not cost you extra in your bill for sending pictures through snapchat.
iOS 8 is customizable by users with programming skills check out - codenameone.com/blog/ios-8-installs-customizing-the-pull-to-refresh
No, some of them do not require ios os. For example, this app: apps4trip.com/instagram-app.html works perfectly with android
Restoring a backup merely restores the apps, data, and contacts you had saved on the device. It won't downgrade it from iOS 8 to iOS 7.1.1.
The Nokia N8 runs on the Symbian operating system, which is not compatible with the Snapchat app. Snapchat is designed for more modern operating systems like Android and iOS. While there may be some unofficial workarounds or alternatives, they won't provide the full functionality of the official app. Therefore, it's not possible to use Snapchat on a Nokia N8.
ios 8 can be installed on ipad by first registering or have your device UDID registered by a developer and then download the iOS 8 beta and install it on your ipad
Jail breaking a IOS 8 phone is hard to do. You will have to reset the phone all the way.
iOS 8 should not affect your phone at all. It should be safe.
No
As of May 2014, Apple has not said when the iOS 8 will be released. Speculation is that it will be released around the middle of September.