Perhaps the most important tip is not to upgrade to iOS 10 if you have an old iPhone or iPad. Although, since you are reading this article, it is too late to give you such advice. But don't despair, there are other proven methods!
Give iOS 10 time
The new iOS is packed to the brim with various functions that start indexing data after the initial launch and consume a large amount of resources. For example, the built-in gallery scans all of your photos, detecting faces, and can cause slowdown and decreased system response.
To save your nerves, you just need to give iOS time to complete all processes after the initial launch. This usually takes about eight hours, so it is convenient to update in the evening and leave your iPhone or iPad alone overnight. In the morning you will notice that the system is faster.
Disable parallax effect
In iOS 10, there are even more animations that significantly load the processors of the iPhone and iPad, especially in older devices. If the icons on the desktop do not move when you tilt your smartphone or tablet, you have very little to lose. But everything will open much faster.
"Settings" → "General" → "Accessibility" → "Reduce motion"
The toggle switch we need is hidden in the depths of the settings. We click and enjoy.
Reduce the transparency of the interface
Another decoration effect. There are many semi-transparent elements in the iOS 10 interface, ranging from the dock to various pop-ups. If you turn it off, all this beauty with frosted glass effects will be replaced by harsh gray substrates, but it will not waste extra resources on rendering.
"Settings" → "General" → "Accessibility" → "Increase contrast" → "Lower transparency" The opacity toggle switch is in the Increase Contrast section next to Decrease Motion.
Disable background app refresh
Updating data in the background is a handy thing, but is the three seconds of waiting for a feed to Twitter or Facebook worth the additional CPU load on your iOS device, which is already struggling to cope? In addition, it is also a load on the battery, depriving you of several minutes of battery life.
"Settings" → "General" → "Content update" There is a whole section in the settings with a list of all installed applications. You need to go there and make sure that the toggle switches are turned on only opposite the really necessary applications. Better yet, disable the update completely.
Free up storage space
You probably know that iOS sometimes behaves strangely when there is little free disk space. iOS 10 is no exception: if your iPhone or iPad's storage is full, the system starts to slow down.
"Settings" → "General" → "Using storage and iCloud" Take a look at the usage statistics and make an audit. It is advisable to have at least 1 GB of free space. If uninstalling applications does not give the desired results, use the cleanup.
Reboot your iPhone or iPad
If you haven't already done so, be sure to restart your iOS device. After enabling, temporary files, cache and other things that can slow down the system are removed. A freshly installed iOS 10 will have a lot of this junk, so do not be too lazy to reboot and remove all unnecessary.
apple.com To restart, you need to simultaneously press and hold the Home button and the power button until the screen turns white and the Apple logo appears. Alternatively, you can simply turn off and on your iPhone or iPad. The effect will be similar.
Apple uses high-performance components to deliver unmatched performance for iPhones and iPads. However, software decorations, animation and other optional features of the operating system negatively affect the speed of mobile devices. First of all, this applies to not the most top-end gadgets.
You can solve the problem by disabling the most resource-intensive functions. By using standard operating system settings, you can improve the performance of older iPhones and iPads.
Disable Spotlight Search
In 2009, manna from heaven fell on the heads of iPhone users. Released the third version of the iPhone OS endowed Applephones with hundreds of new functions at once. Then, for the first time in Apple smartphones, such familiar things as "cut-copy-paste", MMS and the universal search mechanism Spotlight appeared.
You can get to the latter by swiping from top to bottom on any page of the home screen. Spotlight is nothing more than a global search across all content: contacts, mail, SMS, applications, music, calendar, and its main advantages are instantaneous and visual results. The problem is that Spotlight continuously indexes content on mobile devices to keep abreast of any changes to the OS. Disabling this feature can improve the performance of your iPhone and iPad. Go to Settings -\u003e General -\u003e Spotlight Search and uncheck all the items.
Disable background app refresh
Applications in iOS 8 are able to download information in the background. This feature is very useful, but it consumes battery power and additionally loads processor power. Go to Settings -\u003e General -\u003e Content Update and disable the use of services in the background. The function can be turned off completely or its use can be limited for some applications.
Disable parallax and frosted glass effect
Apple has probably spent a lot of time creating parallax effect for wallpaper that creates a three-dimensional effect. Everything looks nice, but apart from the extra load on the processor, this feature is no longer good for anything. Therefore, when setting the wallpaper in iOS 8, turn the "Perspective" switch to the Off position.
A special chic of the Apple software shell gives the effect of transparency. Many elements of iOS 8 are made with a three-dimensional effect - layers above the main interface. In this case, everything below becomes blurry, as if behind frosted glass. This effect is seen all over the OS, including Action Center, Control Center, and the top clock bar. You can turn off UI translucency by going to Settings -\u003e General -\u003e Accessibility -\u003e Increase Contrast. By default, the Reduce Transparency switch is set to Off. With the effect disabled, it works visually faster, especially on older models.
Disable animation
For a long time Apple has been creating a beautiful pseudo-three-dimensional effect for the "flat" iOS interface: menus, icons, notifications that slightly change their appearance when the device is tilted. The function is rather insignificant, but it consumes CPU time. Therefore, go to Settings -\u003e General -\u003e Universal Access and activate the item "Reduce motion".
Free up memory space
IPhone and iPad should be cleaned from time to time. Imagine that you are working somewhere in the office and after a while you notice that your desk is gradually becoming littered with unnecessary documents and papers. And what are you doing? That's right, you will clean and tidy up to free up more space and work more efficiently. The same thing happens on iOS. Smartphones and tablets, like desktop computers, should also be kept clean and tidy.
You can find the list of installed programs, sorted by the size of the data they occupy, in the operating system settings. To do this, open the General section and go to the Statistics menu. iOS 8 will show the size of downloaded programs and allow you to quickly free up memory on your device.
Apple uses high-performance components to deliver unmatched performance for iPhones and iPads. However, software decorations, animation and other optional features of the operating system negatively affect the speed of mobile devices. First of all, this applies to not the most top-end gadgets.
You can solve the problem by disabling the most resource-intensive functions. By using standard operating system settings, you can improve the performance of older iPhones and iPads.
Disable Spotlight Search
In 2009, manna from heaven fell on the heads of iPhone users. Released the third version of the iPhone OS endowed Applephones with hundreds of new functions at once. Then, for the first time in Apple smartphones, such familiar things as "cut-copy-paste", MMS and the universal search mechanism Spotlight appeared.
You can get to the latter by swiping from top to bottom on any page of the home screen. Spotlight is nothing more than a global search across all content: contacts, mail, SMS, applications, music, calendar, and its main advantages are instantaneous and visual results. The problem is that Spotlight continuously indexes content on mobile devices to keep abreast of any changes to the OS. Disabling this feature can improve the performance of your iPhone and iPad. Go to Settings -\u003e General -\u003e Spotlight Search and uncheck all the items.
Disable background app refresh
Applications in iOS 8 are able to download information in the background. This feature is very useful, but it consumes battery power and additionally loads processor power. Go to Settings -\u003e General -\u003e Content Update and disable the use of services in the background. The function can be turned off completely or its use can be limited for some applications.
Disable parallax and frosted glass effect
Apple has probably spent a lot of time creating parallax effect for wallpaper that creates a three-dimensional effect. Everything looks nice, but apart from the extra load on the processor, this feature is no longer good for anything. Therefore, when setting the wallpaper in iOS 8, turn the "Perspective" switch to the Off position.
A special chic of the Apple software shell gives the effect of transparency. Many elements of iOS 8 are made with a three-dimensional effect - layers above the main interface. In this case, everything below becomes blurry, as if behind frosted glass. This effect is seen all over the OS, including Action Center, Control Center, and the top clock bar. You can turn off UI translucency by going to Settings -\u003e General -\u003e Accessibility -\u003e Increase Contrast. By default, the Reduce Transparency switch is set to Off. With the effect disabled, it works visually faster, especially on older models.
Disable animation
For a long time Apple has been creating a beautiful pseudo-three-dimensional effect for the "flat" iOS interface: menus, icons, notifications that slightly change their appearance when the device is tilted. The function is rather insignificant, but it consumes CPU time. Therefore, go to Settings -\u003e General -\u003e Universal Access and activate the item "Reduce motion".
Free up memory space
IPhone and iPad should be cleaned from time to time. Imagine that you are working somewhere in the office and after a while you notice that your desk is gradually becoming littered with unnecessary documents and papers. And what are you doing? That's right, you will clean and tidy up to free up more space and work more efficiently. The same thing happens on iOS. Smartphones and tablets, like desktop computers, should also be kept clean and tidy.
You can find the list of installed programs, sorted by the size of the data they occupy, in the operating system settings. To do this, open the General section and go to the Statistics menu. iOS 8 will show the size of downloaded programs and allow you to quickly free up memory on your device.
We all know that Apple is trying to take care of all categories of its users and released such a feature as reducing motion on the iPhone.
It is very useful and has a logical explanation of its creation and, of course, application. Let's figure out what it is and how it can be activated.
What is motion reduction in iOS?
I'll start with the fact that with the advent of iOS 7 there were a lot of changes, and one of them was the feature of the visual depth of the screen.
If you put a special standard wallpaper on your iPhone, then when the device moves, it will move and it all looks very impressive.
Over time, improved animations for opening applications also began to appear. Transition animations and much more have also been improved.
If the user simply doesn't need it, then the whole thing can be turned off using the "Reduce Motion" function. It also helps to save a little battery power.
We'll talk about enabling it a little later, but for now I want to list what exactly will be disabled after activation:
- removes animation in the standard Weather application;
- all screen effects are completely changed;
- the parallax effect, what I explained about the wallpaper, is also turned off;
- well, some other standard applications also stop using animation.
I think you understand the main essence of this function, and now it's time to start the part when I tell you how to properly activate the function or disable it if necessary.
How to turn on / off motion reduction on iPhone?
I'll start with the fact that this function is most often used on old devices or phones, the battery of which has already decreased in volume. 
This means that it is used to extend the life of the iPhone and if you have an old model and do not want to see the smooth operation of your device on the latest iOS.
Well, now you can start turning on the motion reduction function:
- as always, go to Settings - looking for an item The main;
- go to Universal access — Reduced movement;
- we see an item with the same name and just activate it so that it lights up green.
At the bottom, you may have noticed another item called "Message Effects (Auto)". It is best to keep it active.
If you turn it off, then in the event that someone sends you messages with an effect like balloons, fireworks and others, they simply will not work.
I now use iPhones 5S and I activated it as soon as I switched to iOS 10. At first, of course, it was unusual, but then it was normal and it became much more comfortable to work.
In the fall, Apple will release the iOS 7 mobile operating system to the public with a revolutionary design and a huge set of new features and updated applications. Indeed, there will be a lot of innovations, ranging from a completely redesigned appearance to a unique approach to usability. The latter also includes the so-called parallax effect, which developers say is intended to change the way users interact with mobile devices.
Apple describes this technology as follows:
“IOS 7 creates a sense of multidimensionality. The operating system makes the most of iPhone, iPad and iPod touch technologies to further enhance the capabilities of iOS. Clear and functional layers create depth and organize content.
The translucent background gives a sense of connection with context and place. And the new approach to animation and movement makes the simplest tasks that much more fun. "
In short, the principle of the technology is as follows: on the flat glass panel of the phone, called the display, the user sees a three-dimensional world that moves in space with the device.
Parallax and perspective
The principle of the parallax effect is based on how the brain determines the size of an object in a person's field of view. The closer an object is, the larger it appears. Conversely, the farther away an object is from us, the smaller it is.
This is a basic description of the principle of the brain's perception of perspective, and parallax is the change in the apparent position of an object relative to a distant background, depending on the position of the observer. For example, when you are inside a fast-moving car or train, objects closer to you move faster, while objects farther away slower. Although in fact they have the same speed.
Along with other optical tricks, perspective and parallax play an important role in the perception of the world, making it possible to understand and organize visual signals recorded by the eyes.
From rockets to phones
In iOS, the parallax effect is reproduced by software, specifically, by technology that was originally designed for astronautics.
Inside any Apple mobile device is a device called a MEMS gyroscope. It carries a tiny mechanism (less than the thickness of a human hair) inside that can vibrate at a known frequency when an electrical signal is applied to it. When you rotate your smartphone (or tablet) in any of the three directions, the mechanism inside the gyroscope resists the change in orientation according to Newton's First Law.
Working in conjunction with other sensors called accelerometers, the gyroscope allows the device to perceive and determine changes in its position in space with sufficient accuracy.
Starting with an estimate of the initial position of the device, based on the fact that most people raise their phone to eye level to use it, iOS determines the angle between the phone's display surface and our field of view as they move relative to each other.
The math behind the depth effect is simple enough. All the software needs to do is be able to organize the contents of the display in different planes, and then move these planes relative to each other. Move based on their position relative to the user's eyes. All this as a result creates the effect of depth.
If you've seen the recording of the WWDC 2013 conference, you might have noticed that the icons in iOS 7 look like they are high above the background wallpaper. And it looks very realistic. The same goes for tabs in Safari.
Despite the fact that all the features of iOS 7 are still hidden from the public, it is likely that Apple will implement parallax effect in all components of the new OS (this can also explain why the first generation iPad and iPhone 3GS, which do not have gyroscopes, did not get into list of supported devices).
How Parallax Works in iOS 7:
