MacWriteBuddy · Office #52,313

What it is

Calls itself “AI grammar checker”.

• Calls itself: AI grammar checker

“MacWriteBuddy is an AI grammar checker that fixes your spelling and grammar in any app”

Where it puts itself

Rules out “No login”.

• Says it will not: No login

“No login, no account, and nothing is ever uploaded to our servers.”

What it costs

One-time purchase. A free tier, free forever. No monthly plan. Prices quoted: $39.

• One-time: yes
• Monthly: no
• Free plan: free forever
• Price: $39

“Fixing is free; Pro ($39 once) adds rewrite, translate, summarize, prompt improver, custom actions, and memory.”

“No subscription, no account.”

“Fix spelling and grammar in every app for nothing, forever.”

How it runs

A desktop app for macOS. Runs locally and works offline. Offers an API. AI is the core of the product. You can bring your own API key.

• Kind: desktop
• Runs on: macOS
• Runs where: on the device, offline
• API: yes
• AI role: core to the product
• Bring your own key: yes

“Each one is a native Mac app that’s free to start”

“…macOS 14 Sonoma or later”

What it works with

Names Anthropic, Disk Clean AI and 5 more on its pages.

• Names: Anthropic · Disk Clean AI · Gemini · +4

“Run a model offline on your Mac (llama.cpp or Apple Intelligence) or bring your own OpenAI, Anthropic, Gemini, OpenRouter, or Ollama key.”

“We also make Disk Clean AI and MacTodo.”

What it offers as proof

Live, no waitlist. Try it without signing up.

• Trial asks for: nothing

“No login. No account. Ever. Download it, open it, use it.”