Productivity

Perplexity Spaces: How They Work, and What Changed in 2026

Perplexity Spaces are persistent workspaces that hold your files, instructions and conversations in one place. Perplexity renamed them Projects, the help page URL…

API Key vs Subscription: What Your $20 Actually Buys

You pay $20 a month for ChatGPT or Claude, and then a Mac app asks for an API key. That is not a bug and it is not a second charge for the same thing. Here is what…

NotebookLM Prompts: How to Write Them, and Why Yours Get Refused

NotebookLM prompts fail for a reason no prompt list explains: the model answers only from the sources you upload, and refuses what it cannot ground in them. Here is…

How to Delete Images From ChatGPT Library (and What It Actually Removes)

There is no delete button on a generated image in the ChatGPT library. OpenAI still documents one method: delete the whole conversation the image came from. But…

Claude Prompts: 30 That Work, and Why They Work on Claude

Most Claude prompt lists are ChatGPT prompts with the name swapped. Claude rewards a different shape: tagged structure, three to five examples, and your documents…

AI File Upload Limits: What Each Chatbot Actually Accepts

Every chatbot caps what you can upload, and almost every guide online gets the numbers wrong. Here is what ChatGPT, Claude, Gemini, Grok and Perplexity actually…

Best AI Calendar Assistant for Mac: Which Ones Actually Work With iCloud

Most AI calendar tools are built for Google Calendar, and on a Mac that is the whole problem. Here is which ones actually read and write iCloud, what they really…

How to Create a Custom GPT: Who Still Can, and What to Do If You Cannot

Almost every guide to creating a custom GPT tells you to open the builder and click Create. That path is closed. OpenAI states that new GPT creation and publishing…

Microsoft Copilot vs Gemini in 2026: Prices, Mac Apps and the Verdict

Every Microsoft Copilot vs Gemini comparison online prices them as business seats, $18 a user against $14 a user. Almost nobody buys them that way. As consumer…

NotebookLM Alternatives: What Gemini Notebook Won’t Do, and What Fixes It

Google renamed NotebookLM to Gemini Notebook in July 2026, but the reasons people look for a replacement did not change. Here is what the tool will not do, and the…

Gemini Canvas: What It Is, What It Makes, and What It Costs

Gemini Canvas is a workspace inside the Gemini app where the model builds and edits a document, app or web page in place. Here is what it makes, what it costs, and…

How to Use Claude Projects: Setup, Limits and What They Cost

Claude Projects hold one long-running job in a single workspace: its chats, its files and its own instructions. Here is the setup, the five-project free cap…

Too Many AI Subscriptions? Run This Audit Before You Renew

ChatGPT now lists unlimited text chat on its free plan and Claude has moved memory, web search and file creation into its own. The reason most people bought a…

Best AI Menu Bar Apps for Mac: The Four Jobs They Actually Do

Every roundup treats AI menu bar apps as one category. They are four different jobs, and most people who think they need one app actually need two. Here is what…

Meet Fello AI's New Floating Chat Bar

Press ⌥ Space anywhere on your Mac and Fello AI appears instantly over whatever you're working on. Ask about your screen, dictate a prompt, or attach a file, then…

AI PDF Reader: The 8 Best Tools Compared for 2026

Eight AI PDF readers compared on what they actually do with your document, including the split between tools that analyze files and tools that read them aloud.

Microsoft Copilot vs ChatGPT in 2026: Which One Should You Pay For?

Almost every Microsoft Copilot vs ChatGPT comparison online still pits Copilot Pro against ChatGPT Plus at $20 each. Copilot Pro stopped selling in October 2025 and…

Microsoft Copilot Pricing in 2026: Every Plan and What You Really Pay

Microsoft Copilot ranges from free to $30 per user per month, but the advertised price is never the bill. Every business tier is an add-on that sits on top of a…

Claude Tag: What It Is, How It Works in Slack, and Who Can Use It

Claude Tag put a shared @Claude inside Slack channels, and it replaced the old Claude in Slack app on 3 August 2026. Here is what it does, who can get it, and what…

How to Use Microsoft Copilot in 2026: Every Version, Step by Step

Learning how to use Microsoft Copilot starts with a question nobody expects, which is which Copilot you actually have. Two different products now share the name…

Gemini Gems: What They Are, What They Can Do, and Where They Stop

Gems are saved, reusable versions of Gemini, free on every plan. Here is what they can do, the limits Google never publishes, and what sharing one gives away.

ChatGPT Memory: How It Works and How to Delete It

ChatGPT rebuilt how it remembers you on 4 June 2026, and almost every guide still describes the old screen. Here is how the memory summary works, how to delete what…

ChatGPT Projects: How They Work and How to Use Them

ChatGPT Projects keep one long-running job in a single workspace: its chats, its files and its own instructions. Here are the real file limits, the sharing rules…

What Is Microsoft Copilot? Every Version, Price and Model in 2026

Microsoft Copilot is Microsoft’s AI assistant, built into Windows, Edge and the Microsoft 365 apps. As of August 2026 the name covers two completely different…

Best AI for Translation: What the Only Independent Test Found

Almost every list answering this question is published by a company selling a translation product. The one independent evaluation that grades output by hand reaches…

Best AI Dictation Apps for Mac: Tested and Compared

Almost every guide to the best dictation app for Mac opens with the same claim, which is that Apple’s built-in dictation cuts out after 60 seconds. That is wrong…

Talk to Any AI in Fello AI

Fello AI 6.8.0 adds fast voice dictation, so you can speak your prompts instead of typing them. Tap the microphone, review the transcription, choose any AI model…

Best AI Note Taker: 6 Apps Ranked and Compared

Every ranking of the best AI note taker on the first page of Google is published by a company that sells one. Shadow ranks Shadow first, under a byline that openly…

AI Tools for Freelancers: How to Write Proposals, Contracts, and Reports with AI

76% of freelancers now use AI tools in their work and 64% report a meaningful increase in productivity, according to Fiverr’s International Freelancer Day survey of…

Como Usar IA com PDFs para Editar, Converter e Analisar Ficheiros [Guia Completo 2026]

Existem mais de 3 biliões de PDFs em todo o mundo, segundo estimativas da Adobe, e a maioria das pessoas ainda enfrenta os mesmos problemas: juntar ficheiros…