I've been avoiding iOS 8 since day 1. I downloaded it back then and I hated it. I was able to revert back to iOS 7 during that unusual long window period last year. I have the iPhone 5, 16GB version with more than 150 apps on my iPhone. I find everything is fine the way it is now. I have no crashes, I have no need to update my apps to the latest version. So far, everything works as it should. I came across an article the other day where the writer said he avoided iOS 8 himself and had issues with it on other devices. However, he is now promoting iOS 8.3. I am a firm believer in not updating an OS to more than one version higher than what came with the device. In my case, that would be iOS 7. I don't know what I will gain in updating to iOS 8.3. I know iOS 8+ swallows more than 500 MB of the onboard 1 GB volatile RAM, compare to around 200 MB with ioS 7. I also wonder if my older apps that I havent update for a long time because the later versions are bloated may become obsolete after updating. Hence, I am really on the fence here. In terms of experience. I dont want to lose my current performance and fluidity of the apps and iPhone, only to gain some lag. I know all too well what that's all about. Any new updates will also suck my device's memory more so too because they're "optimized" for iOS 8. My available storage RAM will also be less as a result of updating the OS and apps too. I am in a comfortable position right now of not having to update if I don't have to. Therefore, do I need to update my iPhone 5?