If you're looking to add some privacy to your Galaxy S9, the Akcoo Privacy Screen Protector might be a good option for you. It's made from tempered glass, and it has this cool anti-spy tech that keeps prying eyes away by making it hard to see your screen from the sides.

When it comes to installation, it should be pretty smooth if you take a few key steps. Our research shows that this protector has a full-screen adhesive which is generally more reliable than the kind that only sticks on the edges.

Plus, it comes with extra UV adhesive and cleaning kits in case you need a do-over. Lots of folks found it really easy to install, especially after watching the manufacturer's guide video, which walks you through the process step by step.

There are a couple of things to keep in mind, though. The privacy feature might make your screen dimmer, so you might want to turn up the brightness a bit. Some people also noticed some diagonal lines when the privacy feature is active, which could affect how it looks and readability.

Overall, if you're careful during installation—particularly with the adhesive and the UV lamp—the Akcoo screen protector should fit nicely and do its job well.

Just weigh the trade-offs like the dimmer screen or the lines, and see if they matter to you. With a bit of patience, most people find it works out pretty well in the end.

The Akcoo Galaxy S9 Privacy Screen Protector is all about keeping your screen safe from scratches while also ensuring privacy. As the manufacturer describes, it uses a full-screen adhesive that sticks firmly, which helps boost touch sensitivity and reduces the risk of it peeling off.

One cool thing about this protector is its anti-spy feature. Basically, it makes your screen hard to read from the sides, so nosy people next to you won't see what you're doing. But keep in mind, this means your screen might look a bit dimmer. You might need to increase the brightness for clarity.

Installing it seems pretty straightforward. They've included an instructional manual and a guide video to walk you through the process. According to our research, many people have found it easy to install and praised the UV glue for keeping it secure.

On the flip side, some folks have noticed diagonal lines showing up on the screen, which can be distracting. There have also been mentions of bubbles forming at the edges. From what we've gathered, a few people fixed these issues after getting some tips from the seller.

So, while the Akcoo Galaxy S9 protector has some great perks like privacy and scratch protection, be aware of these minor issues. If you decide to get one, careful installation is really important to avoid bubbles and lines.

And you'll probably need to tweak your brightness a bit. But overall, if you're okay with these small adjustments, it seems like a solid option for durability and privacy.

When it comes to the diagonal lines, they seem to be a bit of a mixed bag based on our research. Some folks say the Akcoo Galaxy S9 Privacy Screen Protector is really good at doing its main job—keeping your screen private—without too much hassle in terms of installation.

However, the clarity is where some people have raised concerns. Those diagonal lines can show up when you're looking at the screen from certain angles, which can be distracting for some users.

A few people mentioned that while it keeps prying eyes at bay, it might not be as clear as other protectors they've tried, leading to a bit of disappointment. There have also been reports about fit issues, with some users saying it doesn't always sit perfectly on their Galaxy S9. This might come down to how precisely the installation instructions are followed.

Since experiences with screen protectors can be pretty subjective, I'd recommend being extra careful with the installation. Maybe watch some guide videos suggested by the seller to avoid any hiccups.

If you're having trouble, reaching out to the seller has helped some users iron out issues. The screen protector does come with extra adhesive and cleaning kits, which is a nice bonus to help with a smoother installation.

So, if you’re mainly after privacy and can live with a bit of diagonal line visibility, this screen protector might work for you.