kitio.aiAdded Oct 29, 2026
PaletteBrain
From $29 one-timeChatGPT shortcut app for macOS, bought once with your own key
What is PaletteBrain?
PaletteBrain is a Mac app that brings ChatGPT into any application through a keyboard shortcut, so you do not have to copy text into a browser tab. You supply your own OpenAI key, and it is sold as a one-time licence instead of a subscription.
You select text in any app and run a saved command such as fixing grammar and spelling, translating to English, summarizing into bullet points or turning notes into a blog post. Commands can be customised, which makes it a prompt manager as much as a chat window.
The site lists a lifetime licence at $29 and says the price will move to $99 a year in later roadmap phases. It mentions bring-your-own-key support for OpenAI and other providers.
Features
- Global keyboard shortcut
- Custom AI commands
- Grammar and translation actions
- Bring your own API key
- One-time licence
Tags
Releases
+ Submit new release- Listed
PaletteBrain was added to the directory.
Organization
PaletteBrain
Listed by kitio.ai · unverified owner
Pricing
- Pricing model
- Paid
- Paid options from
- $29 one-time
- Billing frequency
- One-time
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Pros and cons
Pros
- One payment, no subscription
- Works across all macOS apps
- Custom commands for repeated tasks
Cons
- Mac only
- Needs your own API key and usage costs
- Launch price may rise to a yearly fee
Prompts & results
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Reviews
Q&A
What is PaletteBrain?
PaletteBrain is a Mac app that brings ChatGPT into any application through a keyboard shortcut, so you do not have to copy text into a browser tab. You supply your own OpenAI key, and it is sold as a one-time licence instead of a subscription.
Do I need my own OpenAI key?
Yes. The site says you bring your own OpenAI key, so API usage is billed by the provider on top of the licence.
Is it a subscription?
No. The current offer is a lifetime licence for $29, though the site warns the price will change.
How much does PaletteBrain cost?
PaletteBrain is paid, with paid plans from $29 one-time.
Is there a free version of PaletteBrain?
No. PaletteBrain is a paid tool.
What are the main features of PaletteBrain?
Global keyboard shortcut, Custom AI commands, Grammar and translation actions, Bring your own API key, One-time licence.
Who makes PaletteBrain?
PaletteBrain is made by PaletteBrain.
What are the best alternatives to PaletteBrain?
Popular alternatives include Ethertext, MacCopilot, Notion.