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Add to SafariWhen comparing iOS vs KaiOS, the Slant community recommends iOS for most people. In the question“What is the best mobile operating system?” iOS is ranked 6th while KaiOS is ranked 7th. The most important reason people chose iOS is:
Apps must pass tighter [guidelines](https://developer.apple.com/app-store/review/guidelines/) to make it into the app store.
Specs
Question Ranking
Pros
Pro Great selection of high quality and polished apps
Apps must pass tighter guidelines to make it into the app store.
Pro Everything works very well out of the box
It's engineered to be designed. Design means choice. A collection of best options, components and programs chosen by highly experienced curators/designers/engineers are installed by default. No need to customize. It's best by default.
Pro Personal assistant called Siri
Siri is an intelligent personal assistant and knowledge navigator. Siri lets you use your voice to send messages, schedule meetings, place phone calls, and more.
Pro Easy to learn to use
The iOS user interface is known by millions. It has mostly stayed the same throughout the years.
The main view is a simple grid menu which displays all the installed applications. On the bottom there is an app tray which displays the icons for the most used apps.
The iOS user interface is especially easy for users who want an easy experience and don't want to spend time learning on how to navigate through their phones. Everything is displayed right in the main view and it's easy to find. The fact that it has not changed, at least significantly in the past years has made it possible for it's most devoted users to keep upgrading their iOS devices without having any difficulty to adapt.
Pro Security
A trustworthy OS, secure for use with banking apps.
Pro Consistent performance
Unlike Android, iOS is developed to be used on similiar devices and both the hardware and iOS itself are developed by Apple. This means that they are highly adapted to work with each other. Even after the hardware becomes a little outdated, the performance still remains consistent and smooth on several iOS versions.
Pro Apps request permissions when needed
Instead of an app asking for all permissions it will need when installed, iOS apps request permission to access certain parts of user's data only when the current action requires it.
Pro CarPlay
Available in select cars, CarPlay is built primarily around the use of Siri voice commands and prompts, providing an "eyes-free" experience where you can respond to incoming calls, dictate text messages, or access your music library from a vehicle.
Pro Longtime support for older smartphones / tablets
iPhones don't become obsolete in a year or so. Most of them get updates for even more than about 4 years.
Pro Support for standard sync protocols
Out of the box support for caldav and carddav.
Pro Clean UI across the operating system
Unlike many other operating systems, iOS has a clean and consistent UI that is shared across the entire operating system, even with third-party apps.
Pro Apple pay
Apple pay, an easy and secure payment option.
Pro Low hardware requirements
It allows to build feature rich but still cheap phones.
Pro Simple
It is very simple
Cons
Con Tied to Apple
No alternative software can be installed unless you keep your phone jailbroken (with the system outdated and probably with security issues).
Con Inconvenient price and hardware lock-in
iOS is only available on iPhone, iPad and iPod Touch, in which these device may be more expensive than the competitors.
Con Apple is very unfriendly regarding warranty and repair work
If your device breaks, they will just tell you to buy a new one.
Con Vendor lock-in
You are forced to use the Apple ecosystem. Like the AppStore or iTunes.
Con Possible backdoor
There are some rumors that Apple provides NSA backdoors to its products.
Con Jailbreak breaks iOS
Unlinke Android where you can still use a rooted device normally a jailbreak will break your iOS.
Con Outdates web browsers
All Webbrowser must use the Webkit/Safari webengine to display websites.
Con No privacy allowed
Does not allow for privacy due to it's closed nature.
Con Closed source
The iOS source code is not available.
Con Unlike Android, it is proprietary
Nobody can look into the system so you can't even say if it is secure or not. In the worst case Apple could log all your activities and data.
Con Older iPhone models with poorer batteries might perform slower
iOS delibrately slows the CPU down on older iPhones with worn-out batteries so as to preserve battery life, resulting in possible slower-than-expected performance. This only applies to iPhone 6, iPhone 6S, and iPhone SE running iOS 10.2.1 and above, and iPhone 7 running iOS 11.2 and above.
Con No file managing
Managing files and directories is not possible. Files are in fact attached to applications. It is an oversimplification that can be limiting.
Con Not very customisable
Other operating systems like Android or Windows Phone (more or less), iOS isn't as customizable.
Con Apple is not interested in decent climate action
... but very much in making us overconsume through planned obsolescence and others.
Con Infantilizing
The OS is babysitting you and does not give you basic control, such as turning off location, which massively shortens the lifespan of the battery
Con Planned obsolescence everywhere
Planned obsolescence through very short OS support lifespan and steep requirements for the new Apple apps and other apps. iPhones otherwise have planned obsolescence in so many other parts of their design.
Con No sideloading of apps
You have to install all apps from the Apple Appstore.
Con No widget support
iOS has no widget support.
Con No alternative browsers
All iOS brower need to use safaris webkit rendering engine
Con Worst OS ever made
Con Based on the abandoned Firefox OS, Hence same bugs and problems as with firefox OS
Con Data-mining Possibility
It is Proprietary hence, the corporation can just add data mininers with anyone noticing.
Con Proprietary
Not open source hence the bug patching can take long time.
