Harry Guinness is a writer and photographer from Dublin, Ireland. His writing has appeared in the New York Times, Lifehacker, the Irish Examiner, and How-To Geek. His photos have been published on hundreds of sites—mostly without his permission.
Harry Guinness
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More from Harry
App comparisons
Copilot vs. ChatGPT: Which AI chatbot should you use? [2026]
Here are the main differences I discovered while comparing ChatGPT vs. Copilot, two of the most popular AI chatbots.
By Harry Guinness
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9 min read
App tips
What are AI models? Types of AI models to know
Learn more about what AI models are and the different types of AI models at work in the apps you use every day.
By Harry Guinness
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8 min read
App tips
OpenAI models: Every model and what it's best for
This is your complete guide to all of OpenAI's major models. We'll look at what each one is good for, how much they cost, and how to make the most of them in your work.
By Harry Guinness
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12 min read
Best apps
The 7 best note-taking apps in 2026
Where do you put your thoughts, your ideas, or the name of a movie someone recommended? Whether inspiration strikes when you're at home or on the go, a note-taking app offers an easy, convenient way to store all this information in one place.
By Harry Guinness
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19 min read
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