David Cogen

David Cogen

After always being the person my friends and family came to for help with their tech (see: resident nerd) and realizing how much I loved helping others learn new things about their technology, I started writing tutorials and doing videos on YouTube hoping that it might help others who also needed some guidance.

Digital Trends Team

Articles 17
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Mobile

A brilliant, devious way to stop telemarketing calls once and for all

Tired of the constant calling from telemarketers? Has asking them politely to stop not worked out? You may need to block them, or resort to more devious methods. Regardless of which way you'd like to pursue it, here's how.
Mobile

Four generations of iPhone go head-to-head in our app-launching drag race

The iPhone X may be the most advanced iPhone to date, but is it that much quicker than its last-gen counterparts? We pitted Apple's latest headset against the iPhone 8 Plus, 7 Plus, and 6S Plus to find out.
Mobile

Which phone has the best battery life? Let’s find out

Battery life is a crucial factor when deciding which phone to buy, but which of today's phones is the most capable when it comes to pure longevity? Here, we put seven different devices through a rigorous test to find out.
Mobile

Who makes the fastest phone of 2018? We tested the best, side by side

There are hundreds of different smartphones in circulation, but which is the quickest? Here, David Cogen of TheUnlockr compares six contenders to determine the fastest cell phone around.
Mobile

If Apple Is Slowing Down Your iPhone, Here’s How To Fix It

Wondering if Apple is throttling processor speeds on your iPhone in order to compensate for degrading batteries? Here's how to check using Geekbench 4, and what to do about it if it is the case.
Mobile

Gigabit LTE will give your current phone insane speeds. Here’s how it works

Gigabit LTE is a budding new technology that represents a vital stepping stone between 4G and 5G standards. Here's everything you need to know about the new mobile standard, including how to get it.