I built a Mac app that turns native-language drafts into natural English
Echoo is a Mac AI writing assistant that lets you draft in your native language and convert to natural English with one shortcut. It works inside apps like Slack and Mail, no copy-paste needed. Free trial available, Pro at $6.99/month.
Write like a pro.Keep your privacy.One shortcut.
Echoo turns rough text into polished, professional writing inside your Mac apps.The tone is yours.
Try Echoo for free
Write 2× faster in your native language.
Draft in your native language, hit one shortcut, and get natural English inline in about a second. Or use your own rules to rewrite, change tone, and reply from context.
Slack
salu
toEnglish.promptEditable
Translate this into natural English. Keep my tone, style, and meaning - don't make it stiff. Output only the translation.
Runs inside the Mac apps you use. No browser extensions or app-specific integrations.
Do not take the headline on faith.
The demo shows the workflow. These verified reviews show what real users thought of it. Echoo was also featured in VVMac Magazine (opens in new tab).
“It is exactly what an AI assistant should be, with the minimum interface necessary and very transparent, I just wrote an article on it in VVMac Magazine.”
Bernard - Writer, VVMac MagazineVerified review
“I've tried many tools claiming to do something similar, but none are even remotely as intuitive and user-friendly. Love it!”
Dvir - CEOVerified review
No new tab. No copy-and-paste.
Three steps take you from download to clearer writing inside the app you already use.
01
Keep your work where it is
Install Echoo, then grant the macOS Accessibility access it needs to work with selected text.
02
Start with free credits
Your first 10 credits are included. No API key or credit card required.
03
Stay in your flow
Select text, press your shortcut, and get the result back in the same Mac app.
Pay only after Echoo proves useful.
Try 10 free credits without a card or API setup. If Echoo saves you from rewriting another message, choose Pro. Otherwise, keep using your own provider key for free.
Pro
300 credits/mo
$9.99$6.99/month30% off
Write every day without setting up an API key.
Try Echoo for free
10 credits included. No card required. Cancel anytime.
Start instantly - no API key needed
Write with ready-made commands
300 credits each month
Build commands for your tone and workflow
Works in most Mac apps
Prefer free BYOK mode? Bring your own provider key.
Compare plans
See Echoo in action.
See how Echoo’s AI writing shortcuts work in everyday workflows.
Explore all workflows
To English
To English
Turn a draft into natural English without leaving Slack.
Translate
Translate
Translate selected text in place while keeping its meaning and tone.
Summarize
Summarize
Condense a long email into the decision and next step.
Rewrite
Rewrite
Rewrite a rough message in your preferred voice, right in Slack.
Questions you may have before downloading
Echoo commands are designed to improve clarity, grammar, and translation while preserving your tone, meaning, and intent. You can edit every command prompt to control how your writing changes.
No. Select text in your current Mac app, trigger a command with a keyboard shortcut or your voice, and Echoo returns the result there using macOS Accessibility features.
Yes. Your first 10 credits are included with no API key or card. Pro starts at $6.99/month, or you can keep using Echoo free with your own provider key.
It depends on the mode you choose. Local models process writing on your Mac. Cloud modes send each request to the selected AI provider under that provider’s data policy.
Download Echoo, move it to your Applications folder, open it, and grant Accessibility permission when macOS asks.
Echoo works in most apps that expose editable text through macOS Accessibility, including Chrome, Safari, Mail, Gmail, Slack, Teams, VS Code, Xcode, and Notion.
Curious how Echoo stacks up? See comparisons.
Write the message once.
Turn your draft into natural English without leaving the Mac app you are using. Your first 10 credits are included; no card required.
Try Echoo for free