Modern phones "slow down" for a hundred different reasons. The most common one is unnecessary programs that "eat up" memory and Internet connection speed.
Why does my iPhone slow down?
"Apple" devices are some of the most sensitive to the installation of unnecessary software. This is especially true for older devices - every new program for iPhone 6, iPhone 7 and 8 can cause serious performance problems. However, the most important problem with these devices is the update packages released by Apple. On the one hand, new software from the manufacturer fixes old problems and adds improvements, on the other hand - it puts even more strain on the system and takes away the memory of the device. There is no universal advice for such a case, but experienced iPhone users note that disabling updates helps keep the device fast for many years. Disabling auto-update programs works on Android as well. To disable it, go to Google Play Market, then to "Settings", then to "Auto-update apps" and select "Never". Now the applications will only be updated manually.
Why android lags and how to fix it
Every flagship running this operating system sooner or later begins to work noticeably worse than after purchase. The three most common reasons for this phenomenon are duplication of functional applications, an attempt to install third-party "firmware", programs from dubious sources. It is not necessary to install a special program to find duplicate applications, but if it is difficult to understand which applications perform the same function, you can install CCleaner or Total Commander for Android. Attempting to install non-factory software is "cured" simply - just save a backup of your smartphone and reset the device to factory settings. With programs from dubious sources everything is more complicated - in some cases PlayMarket gets programs with viral or spyware, which cheat Google's internal algorithms during verification. Once on the device, such programs start mining cryptocurrency, wasting battery life and cellular network traffic. The easiest way to find out if your device has such programs is to look at all installed programs and remove unnecessary ones.
Deleting widgets, like messages in "Watsap"
Built-in widgets are the biggest problem with new-generation smartphones. In the iPhone they do not look annoying yet, but in Android they can cause premature death of the smartphone. The main "resource eaters" on Android are the widgets for weather, exchange rates, unread messages, and the notification center on the main screen. Also, the message widget, the solar/lunar cycle, the data counter widget (the amount of traffic in the mobile network), the news, and the calendar seriously slow down the device. Each of them loads the system in its own way, and the parallel use of several at once will reduce performance by almost 50%.
How to uninstall built-in apps Built-in apps, such as Google Music, are hardly ever used in real life, but when you uninstall them, this message will appear. You should ignore it - built-in apps don't interfere with other programs in any way and only free up memory.
Antivirus for Android and iPhone Often the cause of smartphone malfunctions can be hidden in the installed anti-virus. Most phones do not have built-in anti-virus software - you have to install it if you suspect that a malicious file has leaked into your smartphone. However, if the scanning fails, this software still keeps working - antivirus scans files several times a day, and in most cases filters outgoing and incoming traffic. To check your phone's functionality after anti-virus removal, you'll have to reboot your device. In 90% of cases, anti-virus removal speeds up your smartphone's performance.
How to properly update Android and iPhone so that your smartphone does not slow down? After the release of the next update for the device does not make sense to install it immediately. Because for some time there are still gaps in the program for users, which the developers are trying to fill immediately after the start of the update. Usually an updated version is finalized within two to three weeks after the release, but in the case of Android it can take up to three months. If there is no urgent need to update, it is better to wait some time and let the developers evaluate the results of testing the new version. A precedent with the slowdown of the operating system has already been - after the release of one of the update packages iOS 14 Beta millions of iPhones began to work with a delay. Users suffered from a "slideshow" on the screen for two months, and the problematic line of code could only be rewritten with the next release.
My phone is slowing down. Is it Google's fault?
There is an unspoken golden rule that you can use when uninstalling programs - if you can't remember the last time you used them, then you should definitely uninstall them. If you open "Settings" and look at the resource consumption of each application in the section "Battery - Battery Usage", you can find out which application is the most voracious, in addition, you can pay attention to the amount of memory consumed by each application in the section "Memory". The most power-consuming applications are considered to be Snapchat, Tinder, Badoo, Instagram, Facebook, Google Maps, Whatsapp. The latter consumes as much power as three browsers open simultaneously.