Help & support.

On a Mac: copy any text, press Option-W, and the floating panel opens with it loaded. Press Proofread & Refine, read the word-level diff and the issue list, then press Copy Corrected and paste the clean version where you were working. On iPhone and iPad: on the Write tab, tap Paste or type, tap Proofread & Refine, then Copy Corrected.

Entirely on your device, with no network connection at all, even when a provider key is saved. On a Mac it uses Apple's own spelling and grammar engine; on iPhone and iPad, Apple's spelling checker. On all three, Ohms Write adds its own rules: their/there, your/you're, its/it's, "could of" to "could have", "alot" to "a lot", "in order to" to "to", repeated words, a/an agreement, sentence capitals, doubled spaces and spaces before punctuation. Overlapping fixes are resolved before any is applied.

No. There is no keyboard hook, no keyboard extension, no Accessibility permission and no background monitoring. The clipboard is read only when you press Option-W or choose Proofread Clipboard on a Mac, or tap Paste on iPhone and iPad, and it is written only when you press Copy Corrected. Text Ohms Write copied itself is never pulled back in as new input.

Another app probably owns Option-W. When that happens the panel says so. Open Ohms Write from the pencil in the menu bar, or open the app from Finder or Spotlight, which always brings the panel up.

Pasting into another app for you would need the macOS Accessibility permission and synthetic keystrokes, exactly the machinery a private proofreader should not carry. Ohms Write puts the corrected text on your clipboard and tells you so; pasting stays your decision.

Proofread is always available and always offline. Executive, Concise, Academic and Friendly are real rewrites. On macOS 26 or iOS 26 and later, on a device with Apple Intelligence, they can run on the device. Otherwise they use a provider you added your own key for. If neither is available, the mode says so plainly instead of silently doing nothing.

Settings lists the cloud AI providers Ohms Write supports; add an API key from your own account for any of them. On a Mac you can also use a model server you run yourself at 127.0.0.1:11434. You pay the provider directly; Ohms Write adds no markup and runs no middleman server. Each provider has a model override in Settings.

Only the text in the editor, the instruction for the tone you picked, the model name and your key, sent straight from your device to that provider over HTTPS. The first time you use each provider, Ohms Write stops, names where the text is going, quotes the start of it, and sends nothing unless you press Send. Proofreading never sends anything, and Silo Systems runs no server and receives no copy.

In the Keychain on your device, scoped to Ohms Write. They are never written to preferences or history and never sent to Silo Systems. Removing a key deletes it and withdraws that provider's permission to receive text, so adding it again asks again.

Only what you copy. Pressing Copy Corrected saves the original text, the corrected text, the mode, where the result came from and the date, in one file on your device; a run you discard is not saved. On a Mac, open History from the pencil in the menu bar; on iPhone and iPad, use the History tab. Search it, delete single entries, or clear everything.

Word and sentence counts are literal. Reading time assumes 200 words per minute. The Flesch-Kincaid grade estimates the US school grade needed to read the text comfortably. It is useful as a trend while you edit, not as a verdict on your writing.

A one-time App Store purchase at $29.99, and one purchase covers Mac, iPhone and iPad. No subscription, no credits, no account. Any provider you connect bills you directly.