QuietSpeech Review: Offline Dictation for Mac That Works in Any App, With No API Key

Typing is often the slowest part of writing an email, a Slack reply or a quick note. Voice dictation should help, but many dictation tools for Mac either send your audio to a cloud service, ask you to paste in an API key, or come with a monthly subscription.

QuietSpeech takes a different approach. It's a menu bar dictation app for Mac: you hold the Fn key, speak, and clean text appears wherever your cursor is, in any app. It runs on Apple's own speech recognizer and Apple Intelligence, so there's no API key to set up and dictation works offline. It can also rewrite selected text and draft new text from a spoken request. You can watch the demo on QuietSpeech's official website.

This review explains how QuietSpeech works, what its three modes do, how it handles privacy, what it costs and what you need to run it.

What Is QuietSpeech?

QuietSpeech is an offline dictation app for Apple silicon Macs running macOS 26. It sits in the menu bar, uses under 60 MB of memory according to the developer, and works anywhere you can type, including apps like Slack, Mail, Notes and Cursor.

It's built by independent developer Harsh Tomar. Unusually for a paid Mac app, its source code is published on GitHub under the GPLv3 license.

QuietSpeech is aimed at people who write a lot on their Mac and want faster voice typing without accounts, subscriptions or cloud transcription. It's listed in the Productivity category on CodeHype, where you can also see its QuietSpeech product listing.

Key Features of QuietSpeech

Hold Fn to Dictate in Any Mac App

The core interaction is simple: hold Fn, speak, and release. Your audio is transcribed on-device in the language you picked, and the text is inserted where your cursor is. If you'd rather not hold a key, you can tap Fn to toggle dictation on and off.

While you talk, an overlay shows a live transcript of what QuietSpeech heard, so you can catch mistakes before the text lands.

Automatic Cleanup With Apple Intelligence

Raw speech is full of filler words. QuietSpeech uses Apple Intelligence to remove filler, add punctuation and keep your meaning. The official example turns "So um, I think we should like ship it Friday, you know?" into "I think we should ship it on Friday."

If Apple Intelligence is turned off, rules-based cleanup takes over and dictation still works.

Edit Mode: Rewrite Selected Text by Voice

Select some text, hold Fn and say what you want changed, for example "make it more direct." QuietSpeech rewrites the selection in place. This is useful for tightening an email or changing the tone of a message without retyping it.

Generate Mode: Draft New Text From a Spoken Request

Say "generate" followed by what you need, such as "generate a thank-you note for the design team," and QuietSpeech writes a draft and inserts it where you're working.

Custom Vocabulary

You can add names, products and jargon to a vocabulary list so the recognizer gets them right more often. This helps with colleague names, brand names and technical terms that general speech recognition often gets wrong.

Small Details That Matter in Daily Use

• Real mentions in chat apps. In Slack and other chat apps, saying "at Priya" types an actual @Priya mention.
• Code and terminal apps are left alone. QuietSpeech skips AI polish in these apps so your syntax isn't rewritten.
• Clipboard fallback. Some apps need text to be pasted rather than typed, and QuietSpeech handles that automatically.
• Updates from the menu bar.

How QuietSpeech Works

1. Download and install QuietSpeech, then grant Microphone and Accessibility permissions.
2. Turn on Apple Intelligence if you want cleanup, rewrites and drafting. Plain dictation works without it.
3. Add your vocabulary, such as names and product terms you use often.
4. Place your cursor in any app, hold Fn and speak.
5. Edit by voice by selecting text, holding Fn and describing the change.
6. Draft by voice by saying "generate" and describing what you need.

Privacy: Offline by Default

Privacy is one of QuietSpeech's main selling points. According to the official website:

• Audio is captured only while you hold Fn, transcribed on-device, and not kept after transcription.
• Apple Intelligence processes text on your Mac.
• There is no telemetry and no account. Your license key acts as your account.
• The license check needs an internet connection once every 14 days. The app works offline within that window.

You can optionally connect OpenAI, Groq, Ollama or a custom endpoint. In that case, the website notes that the provider you choose sees what you send, while QuietSpeech itself does not. An API key is only needed if you choose one of these providers.

Because the code is published under GPLv3, technically minded users can check how the app behaves for themselves.

QuietSpeech Pricing

QuietSpeech uses a simple one-time license:

• $29, paid once
• Two Mac activations
• No subscription and no account
• 14-day refund
• No free trial. The developer points to the demo video as the way to preview the app.

Checkout runs through Polar. You can move a license between Macs in the customer portal by deactivating the old Mac and activating the new one with the same key.

System Requirements

• macOS 26 Tahoe or later. The app needs Apple's new Speech and Foundation Models frameworks, which arrived in macOS 26.
• Apple silicon (M1 or newer)
• Microphone and Accessibility permissions
• Apple Intelligence turned on for cleanup and rewrites. Dictation works without it.

Use Cases for QuietSpeech

Answering Messages and Email Faster

Dictate replies in Slack or Mail, and use edit mode to make them shorter or more direct before sending.

Writing Notes and First Drafts

Speak your thoughts into Notes or a document, and let cleanup remove the filler so the draft is easier to edit.

Developers Working in Code Editors

Dictate comments, commit messages or chat messages without worrying about AI polish rewriting code, since QuietSpeech skips it in code and terminal apps.

Anyone Who Wants Dictation Without the Cloud

If you'd rather your voice never leave your Mac, the on-device default and the lack of telemetry make QuietSpeech a strong option.

Who Should Use QuietSpeech?

QuietSpeech suits:

• Mac users on Apple silicon and macOS 26 who write a lot every day
• Privacy-conscious users who want offline speech to text with no account
• People tired of subscriptions who prefer a one-time license
• Open-source supporters who like being able to read the code

It isn't an option for Intel Macs, older macOS versions, Windows or mobile.

Advantages and Limitations

Advantages

• No API key and no account. It uses what's already on your Mac.
• Offline by default, with no telemetry.
• Three modes in one shortcut: dictate, rewrite and generate.
• Lightweight. The developer reports under 60 MB of memory use.
• One-time price of $29 for two Macs, with a 14-day refund.
• Open source under GPLv3.

Limitations

• Strict requirements. It needs macOS 26 and an Apple silicon Mac.
• No free trial. You rely on the demo video and the refund window to evaluate it.
• AI features depend on Apple Intelligence. Without it, you get rules-based cleanup only.
• Periodic license check. The app needs to go online once every 14 days.

Final Verdict: Is QuietSpeech Worth It?

QuietSpeech is a focused, well-thought-out dictation app for modern Macs. Holding Fn to dictate anywhere is quick to learn, and the edit and generate modes make it more than a speech-to-text tool. Running on Apple's on-device frameworks means no API keys, no cloud audio and no subscription.

The main barrier is the macOS 26 and Apple silicon requirement. If your Mac qualifies and you want private voice typing that works in every app, $29 once is easy to justify, especially with a 14-day refund. Visit the official QuietSpeech website to watch the demo and buy a license.

Frequently Asked Questions

Does QuietSpeech work offline?

Yes. Dictation and Apple Intelligence run on-device by default. The app only needs internet once every 14 days for its license check, unless you connect an optional cloud provider.

Do I need an API key for QuietSpeech?

No. It uses Apple's speech recognizer and Apple Intelligence, which are already on your Mac. You only need a key if you choose to connect OpenAI, Groq or a custom endpoint.

How much does QuietSpeech cost?

$29 once for two Mac activations, with no subscription. There's no free trial, but there is a 14-day refund.

What are the system requirements for QuietSpeech?

macOS 26 Tahoe or later on an Apple silicon Mac (M1 or newer), with Microphone and Accessibility permissions. Apple Intelligence must be on for cleanup and rewrites.

Does QuietSpeech work in every app?

It works anywhere you can type, including Slack, Mail, Notes and Cursor. In code and terminal apps it skips AI polish, and it uses a clipboard fallback for apps that need one.

Is QuietSpeech open source?

Yes. Its source code is on GitHub under the GPLv3 license.