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Head to head · 2026

Alter vs Merlin

Pricing, free plans, ratings, features, pros and cons, side by side. Where one comes out ahead, we mark it.

Alter

Mac assistant that executes actions across native apps instead of answering in a chat window

4.0$20/mo

Visit Alter (opens Alter in a new tab)

Merlin

Browser AI assistant that brings ChatGPT, Claude, and other models to any website with one shortcut

4.0$15/mo

Visit Merlin (opens Merlin in a new tab)

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

  • Lower starting price

    Merlin

    From $15/mo against from $20/mo

  • Free plan

    Tie

    Both have one

  • Higher rating

    Tie

    4.0 against 4.0

  • Same job?

    Yes

    Both are Productivity tools

Side by side

Compared onAlterMerlin
Our rating4.04.0
Starts at$20/mo$15/moBetter
Free planYesYes
CategoryProductivityProductivity
PlansFrom $20/mo
  • Free$0
  • Pro$29/mo, or $19/mo billed yearly ($228/yr)
  • Teams$19 per seat/mo, or $15 billed yearly ($180/yr); 2-seat minimum
Key features
  • System-wide macOS assistant triggered by shortcut or voice
  • Executes actions inside native apps rather than returning chat text
  • Reads on-screen context to skip copy-and-paste steps
  • Per-context privacy controls over what gets shared
  • Custom action library the user can extend
  • Ctrl/Cmd+M shortcut for AI access on any website
  • Access to GPT-4, Claude 3 Opus, Gemini, DeepSeek, and Mistral Large from one interface
  • Dedicated summarization for YouTube videos, PDFs, and articles
  • Native buttons inside Gmail, LinkedIn, and X for drafting content
  • Image generation across 20-plus models and aspect ratios
Pros
  • Removes the copy-paste loop between a chat window and real work
  • Keyboard-first design suits users who avoid the mouse
  • Privacy controls are exposed rather than buried
  • Free tier's 102 daily queries is generous enough for real evaluation before paying
  • Single subscription replaces separate ChatGPT Plus, Claude Pro, and Gemini subscriptions
  • Native integration inside Gmail and LinkedIn saves switching tabs constantly
Cons
  • macOS only, with no Windows or Linux build
  • Action coverage depends on which apps expose automation hooks
  • 'Unlimited fair access' marketing overstates a Pro plan that's actually credit-capped
  • Real usage cap (around $100 of model cost) isn't disclosed upfront in plan marketing
  • Browser-extension dependence means no dedicated mobile app experience
CompanyAlterFoyer, founded 2021

Prices come from each vendor's pricing page, last checked 20260813. Check the vendor before you buy.

FAQ

Questions people ask

Is Alter better than Merlin?

In our reviews Alter scores 4.0 and Merlin scores 4.0. The better pick depends on the job. Alter: Mac assistant that executes actions across native apps instead of answering in a chat window. Merlin: Browser AI assistant that brings ChatGPT, Claude, and other models to any website with one shortcut.

Which is cheaper, Alter or Merlin?

Merlin has the lower starting price: from $20/mo for Alter and from $15/mo for Merlin.

Do Alter and Merlin have free plans?

Yes, both have a free plan.

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