Grammarly fixes your writing.
Typeahead helps you write faster.
GrammarlyThey're not the same tool. Here's an honest breakdown of what each does and which one is right for you.
The Core Difference
Different jobs. Different tools.
GrammarlyCorrectionA correction tool. It reads what you've written and fixes mistakes. Grammar, spelling, tone, clarity.
Works after you type.
A completion tool. It suggests what to type next, inline, as you write. No prompts, no sidebars.
Works while you type.
These solve different problems. Many professionals use both. Grammarly catches errors after. Typeahead prevents writing friction during.
Feature by Feature
What each tool actually does.
Typeahead provides smart AI autocomplete everywhere on your Mac, suggesting text as you type. Grammarly checks your grammar, spelling, and tone after you write.
| Typeahead | Grammarly | |
|---|---|---|
| Runs locally (no cloud) | ||
| No account required | ||
| Works offline | ||
| Zero data transmission | ||
| One-time payment | $79 once | $144/yr |
| Sentence completion | ||
| Works in all Mac apps | Partial | |
| Grammar correction | ||
| Spelling correction | Basic | |
| Tone detection | ||
| Plagiarism detection | Premium | |
| Browser extension | ||
| Windows support |
Different strengths. Typeahead handles speed and privacy. Grammarly handles corrections. Many people use both.
Privacy
Your words on their servers.
Or entirely on your Mac.
This isn't a knock on Grammarly. They're transparent about their data practices. But it's a meaningful difference.
Grammarly- Sends your text to cloud servers
- Requires internet connection
- Data stored per their privacy policy
- Everything processes on your Mac
- Works fully offline
- Your writing never touches a server
This matters most to lawyers, doctors, therapists, researchers, executives, and anyone who types things they wouldn't want indexed.
Typeahead is architecturally private. Disconnect from the internet and use it normally. It works identically. Run a network monitor. You'll see zero outbound connections.
Pricing
$144 a year, or $79 once.
Grammarly Premium
$144/yr
Billed at $12/month
→Year 2: $288
→Year 3: $432
→Renews every year
Typeahead
$79 once
One-time purchase
Own it forever
Free updates for life
No subscription, no renewal
If you use Grammarly primarily for writing speed rather than corrections, Typeahead is worth evaluating. If you rely on grammar checking, you might want both tools.
Honest Guidance
Which one is right for you.
Use Grammarly when
- →You need grammar and spelling corrections
- →You write in a second language
- →You want tone and clarity feedback
- →You need a browser extension
- →You use Windows
Use Typeahead when
- →You want to write faster, not just more accurately
- →You work with sensitive data that can't go to a server
- →You want to own your tools without a subscription
- →You want completions in every Mac app
- →You're on Mac
Use both when
Typeahead writes faster. Grammarly cleans it up after. For high-volume writers who care about both speed and accuracy, they're complementary.
Buy once, own forever.
No subscriptions. No recurring fees. Pay once and Typeahead is yours for life.
Get early access to Typeahead with unlimited usage forever.
- Smart autocomplete in every Mac app
- Unlimited usage — no caps, no quotas
- All language models included
- Free updates for life
Why one-time?
Subscriptions incentivize retention tricks. One-time purchases incentivize building something so good you tell people about it. We chose the second one.
Typeahead vs. Grammarly
Common questions about both tools.
Yes. They operate at different points in your writing process. Typeahead completes as you type. Grammarly reviews after. They don't conflict.
Typeahead predicts sentence continuations. It doesn't proofread. If grammar correction is important to your workflow, use Grammarly for that and Typeahead for speed.
Typeahead works in most browser text fields on Mac, but it's a native app, not a browser extension. Grammarly has deeper browser integration.
Yes, currently Mac only. Grammarly is cross-platform.
Grammarly makes your writing correct.Typeahead makes you write faster.
If you've been switching to ChatGPT for writing help, Typeahead brings AI assistance into every app, locally, permanently, for less than two months of Grammarly.
Mac only. One-time purchase. Runs offline.