On-device sentence completion for every Mac text field. Drafts stay on the machine. Teams often look elsewhere when they need: Windows or Linux desks; Teams that need a shared cloud style guide; Anyone expecting rewrite, tone, or long-form generation.
Short answer
If Typeahead is not the right fit, start with Grammarly, Notion AI, Superhuman. Teams usually look elsewhere when they need Windows or Linux desks or Teams that need a shared cloud style guide.
Last-mile grammar, tone, and clarity in the text boxes where writing actually happens.
Free / Premium / Business
Why it is an alternative
Overlaps the same job as Typeahead, especially Daily polish across many apps.
Best for
Daily polish across many apps
Non-native English writers
External-facing channels first
Where Grammarly is stronger
Ubiquitous
Low friction
Where Typeahead still wins
Private by construction, not by a settings toggle
Latency feels like the OS, not like an API
One job, finished
Notes
Grammarly is the last mile. ChatGPT and Claude generate. Clearscope grades. DeepL translates. Typeahead completes on-device.
Roll it out on customer-facing surfaces first. Tell people they may reject tone. Confirm the business plan if you need admin. If fiction is the job, turn it down or off.
Roll Grammarly out on external channels first. Turn it down for fiction. Pair with ChatGPT for generation and DeepL for translation. Confirm admin if you need it. If the team writes in one app with its own checker, do not stack nags without a reason.
AI inside the wiki you already use: summaries and drafts next to the source page.
Bundled with Notion paid plans; features vary by seat
Why it is an alternative
Overlaps the same job as Typeahead, especially Teams whose system of record is already Notion.
Best for
Teams whose system of record is already Notion
Summaries that must stay on the source page
Wiki-heavy orgs that hate chat silos
Where Notion AI is stronger
No export step
The AI sits where the work already lives
Where Typeahead still wins
Private by construction, not by a settings toggle
Latency feels like the OS, not like an API
One job, finished
Notes
Notion AI is an amplifier of the workspace you have, including the ugly parts. ChatGPT and Claude remain better for long outside documents. Superhuman remains better for inbox. Typeahead remains better for local caret completion.
Turn it on after teamspaces and guest rules are boringly correct. If you cannot explain who can see a page, you are not ready for a button that summarizes it. Confirm which AI features your plan actually includes — marketing pages and the seat you bought still drift.
Paid, keyboard-first inbox for people who treat email like a sport and will learn the shortcuts.
Paid subscription after onboarding
Why it is an alternative
Overlaps the same job as Typeahead, especially Operators with a high email athletic load.
Best for
Operators with a high email athletic load
People willing to learn shortcuts
Inboxes that are actually the job
Where Superhuman is stronger
Real speed if you learn it
Treats email as the work surface
Where Typeahead still wins
Private by construction, not by a settings toggle
Latency feels like the OS, not like an API
One job, finished
Notes
Superhuman is for people whose bottleneck is the inbox and who will train. Gmail plus Typeahead is cheaper if the bottleneck is a sentence. HubSpot is the system if the bottleneck is the pipeline.
Block the training hour or do not buy it. Confirm which mailbox providers and shared inboxes you actually use. Do not roll it out as a status symbol to people who live in Slack.
Count the threads you answer in a real day. If the number is small, Superhuman is a luxury. If the number is the job, pay and train. Confirm shared inboxes and the actual mailbox provider before you gift seats.
Mac writers who live in native text fields all day
People who refuse to send drafts to a cloud model
Ghost-text fans who already like IDE autocomplete
Who should switch
Windows or Linux desks
Teams that need a shared cloud style guide
Anyone expecting rewrite, tone, or long-form generation
How we selected these tools
ToolifyNav curates AI products. Alternatives are chosen for overlapping jobs-to-be-done, pricing accessibility, and product maturity — not paid placement.
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