SuperSpeller vs Grammarly

SuperSpeller is for the moments when a word won't come easily. Start typing and it can suggest the rest of the word, offer what comes next, or help with a spelling. You can keep working in a supported Mac app and accept the suggestions that say what you mean.

If that's the help you want throughout the day, SuperSpeller is worth trying first. Autocomplete and spelling corrections sit beside your writing, so you don't need to copy your sentence into a separate editor.

SuperSpeller costs US$15.99 once for two active Macs. That includes its typing suggestions and custom writing instructions, with no monthly or annual subscription to keep track of.

Grammarly Free costs nothing and includes spelling and grammar checks. Pro adds editing tools for US$144 a year. If you want predictive text and spelling support on your Mac, SuperSpeller gives you those features for a one-time payment.

With SuperSpeller, your writing and suggestions stay on your Mac. Its local processing means you can still get help with a sentence when your connection drops. Grammarly requires an internet connection to analyze text and return suggestions.

Paid SuperSpeller licenses need internet for activation and periodic checks. After a successful check, you can keep using your license offline for up to 30 days.

Grammarly Pro includes full-sentence rewrites, tone adjustments, and team style guides. Free includes tone detection and 100 AI prompts a month; Pro includes 2,000 per member. Those tools are useful if you want to revise whole passages or follow a shared house style.

SuperSpeller's custom instructions guide its typing suggestions. It does not include a prompt-based editor or team style guides. For everyday help finishing words and catching spellings as you go, try SuperSpeller with a piece of writing you'd normally work on.