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Comparison

Copily vs Grammarly: The Power User's Alternative

If you are tired of expensive subscriptions and passive suggestions, it's time to upgrade your workflow. Here is why Copily is the ultimate Grammarly alternative for active, shortcut-driven AI rewriting.

At a glance: Core Differences

FeatureCopilyGrammarly (Pro/Premium)
Core WorkflowActive shortcut-triggered rewritesPassive inline proofreading
Pricing ModelOne-time lifetime payment$144/year or $30/month subscription
AI Model ControlBring Your Own Key (BYOK) - OpenAI, Anthropic, etc.Locked to Grammarly's proprietary AI
Usage LimitsUnlimited (Pay per API token via BYOK)Capped (e.g., 2,000 Prompts/month on Pro)
Data PrivacyDirect to API (Zero-retention possible)Data flows through Grammarly's servers
App CompatibilitySystem-wide across all apps and text inputsBrowser extensions and specific app integrations

When Copily is the clear winner

  • You want speed: You prefer selecting text and hitting a shortcut over reviewing pop-ups and red lines.
  • You hate subscriptions: You want a predictable, one-time lifetime software cost without recurring fees.
  • You want AI freedom: You want to plug in the latest models from OpenAI, Anthropic, or local LLMs using BYOK.
  • You need custom actions: You want tailored prompts that fit exactly how you write, code, or translate.

When Grammarly might be better

  • You need a safety net: You struggle with basic spelling and want an always-on tool to catch typos as you type.
  • You want guided coaching: You prefer weekly writing insights and detailed explanations of grammar rules.
  • You prefer an all-in-one bundle: You don't want to set up an API key, even if it means paying a premium subscription.

Active vs. Passive: A Workflow That Matters

Grammarly operates on a passive workflow: it runs in the background, drawing red and blue underlines, waiting for you to hover and accept changes one by one. While useful for proofreading, it can be distracting during deep work.

Copily is built for an active workflow. You write your thoughts out without interruption. When you need polish, you select the text, trigger an action via a system-wide keyboard shortcut, and Copily instantly replaces it with a refined, AI-generated version. For high-volume writers, coders, and professionals, this shortcut loop is significantly faster.

Subscription Fatigue vs. BYOK Pricing

Grammarly recently rebranded its Premium tier to Pro, but the cost remains steep: $144/year or $30/month, with a hard cap of 2,000 generative AI prompts per month.

Copily takes a different approach. By offering a one-time lifetime license and utilizing a Bring Your Own Key (BYOK) model, you completely bypass the SaaS subscription trap. You pay only for the exact API tokens you consume (often fractions of a cent per rewrite) directly to providers like OpenAI or Anthropic. No monthly fees, no arbitrary prompt caps, and total freedom to switch to the cheapest or smartest AI models available.

Frequently Asked Questions

Is Copily a complete Grammarly replacement?

Copily is the ultimate replacement for Grammarly's AI rewriting and "improve this" features. However, many users use the free version of Grammarly for passive spell-checking, while relying on Copily for heavy-duty, shortcut-driven AI edits.

How hard is it to setup my own API key?

It takes less than a minute. We provide step-by-step guides to generate an API key from OpenRouter, Google, Anthropic, or OpenAI. Once pasted into Copily, your shortcut actions just work.

Is Copily better for privacy?

Yes. Grammarly processes your text through their servers to build their service. With Copily's BYOK model, your text goes directly to your chosen API provider. Many providers (like OpenAI's API) have strict zero-data-retention policies, meaning your data is never used to train models.

Where can I check pricing and download?

See Pricing and Download for full setup details.

Try the Copily workflow and compare it yourself

See how much faster shortcut-based rewriting is. Get a 7-day trial, then a lifetime BYOK license if it fits your workflow.