Screen protectors save the screen not only from scratches but also from unauthorized tempering. Some screen 
protectors can reduce glare. The screen protectors can be classified into three categories and each has its own benefits.
Clear:
This is the most down to earth choice where the only purpose of screen protector is to protect the day to day wear and tear. You will notice products with multiple protectors as well as only one. If you buy a set of protectors, you will protectors with thin surface. They cannot be noticed easily. They protect your phone against normal lines which appear on screen over a time and then protectors also wear out after a time. Obviously, you will replace them with another in the pack.
Solo screen protectors are usually thick. They have a stronger build which can stand scratches for longer period of time. Sometimes, solo protectors can be removed. They are reusable.
Matte:
These screen protectors reduce glare, though they save the screen from scratches. These screen protectors also come in the set of two or three. However, using anti-glare protection may lead to the distortion of the screen. Matte protectors are made up of the materials which produce rainbow effect. It gives a look which can be compared with pixelation. This will be your choice to choose glare or distortion.
Privacy:
These screen protectors are often used for computers. These privacy screen protectors enable you to view active screen but they limit vision through other angles. These protectors also save your screen from scratches. But, they also lead to distortion like the matte screens. Privacy screens make your screen misty. It also leads to difficulty in video sharing.
Bubble-free application of screen protectors:
Because application of screen protectors requires a lot of patience, the methods vary from person to person. Although many people rely on methods based on water or steam, they are not recommendable. This practice is appreciated, only if user guide allows it. It is better to avoid new screen protector from coming into contact with liquids. This is because minerals in the tap water will remain between screen protectors and screen of phone. This may destroy the adhesive.
The only way which helps you best in applying screen protectors is to be patient. The most important instruction is that screen protector must be applied on just buying the new device, as even a single hairline scratch will lead to the generation of bubbles.
