Voice Keyboard Pro and Wispr Flow are two of the most popular hold-to-speak dictation apps for Mac. Both sit in your menu bar, both let you speak into any text field across macOS, and both produce genuinely good transcriptions. If you have used Apple's built-in dictation and found it lacking, either of these apps will feel like a meaningful upgrade.
But they are not the same product. They differ in who they are built for, what happens to your words after you speak them, and how far they extend beyond basic dictation. We have spent real time with both apps, and this comparison reflects what we actually found rather than what a feature matrix might suggest on paper.
This is not a hit piece on Wispr Flow. It is a good app that does several things well. The goal here is to help you figure out which one fits the way you work.
Quick Comparison Table
| Feature | Voice Keyboard Pro | Wispr Flow |
|---|---|---|
| Hold-to-speak | Yes | Yes |
| Profession-aware vocabulary | Yes — Law, Medicine, Engineering, Finance + more | No |
| Voice isolation | Yes — filters background noise & other voices | No |
| AI cleanup / rewrite | 7 actions — rewrite, shorten, expand, fix grammar, translate + more | Basic rewrite |
| Offline mode | Yes — Apple Silicon on-device processing | No |
| iPhone app | Yes — custom keyboard for all iOS apps | No |
| Custom vocabulary | Yes — add names, acronyms, jargon | Limited |
| Price | Free tier + $4.99/mo Pro | ~$8/mo |
| System-wide input | Yes | Yes |
The table gives you the quick view. The sections below go deeper into what these differences actually mean in practice.
Where Voice Keyboard Pro Wins
Profession-aware vocabulary
Voice Keyboard Pro lets you select a profession during setup — options include Law, Medicine, Engineering, Finance, Accounting, and several others. When you pick one, the transcription engine optimizes for that domain's vocabulary. A lawyer dictating "res judicata" or a doctor saying "acetaminophen" gets accurate results on the first try, without training the model or adding custom words manually.
This matters more than it might sound. Generic transcription engines struggle with specialized terminology. They hear "torts" and write "tortes." They hear "myocardial" and produce something creative. Voice Keyboard Pro's profession-aware system sidesteps these problems by priming the model with domain context before your audio even arrives.
Wispr Flow does not have an equivalent feature. It processes all speech through the same general-purpose pipeline regardless of your field.
Voice isolation
Voice Keyboard Pro includes voice isolation that filters out background noise, music, and other people's voices. If you are dictating in a coffee shop, an open office, or a room where someone else is talking, Voice Keyboard Pro isolates your voice and transcribes only what you said.
This is not just noise reduction — it is source separation. Voice Keyboard Pro can distinguish your voice from a coworker's voice in the same room and ignore the coworker. For anyone who does not work in a perfectly silent environment, this feature alone can be the difference between usable and unusable dictation.
Wispr Flow does not offer voice isolation. Background noise in your environment will affect transcription quality.
Offline mode on Apple Silicon
Voice Keyboard Pro can run entirely on-device on Apple Silicon Macs. No internet connection, no cloud processing, no data leaving your machine. The offline model runs locally using the Neural Engine on M-series chips, and while it is slightly less accurate than the cloud model for very long passages, it handles everyday dictation well.
This matters for three scenarios: when you are on a plane, when you are on unreliable Wi-Fi, and when you are working with sensitive information that should not be transmitted to any server. Lawyers, doctors, and anyone handling confidential data often need this guarantee.
Wispr Flow requires an active internet connection for all transcriptions. No connection means no dictation.
iPhone keyboard
Voice Keyboard Pro offers a custom keyboard for iPhone that brings the same voice-to-text experience to iOS. You tap the microphone button, speak, and the text appears in whatever app you are using — Messages, Mail, Slack, Notes, anything. The keyboard also includes swipe-to-type and predictive text for when you are not dictating.
If you dictate on your Mac and want the same workflow on your phone, Voice Keyboard Pro is currently the only option between these two apps. Wispr Flow is Mac-only.
Deeper AI actions
Both apps offer some form of AI text processing, but Voice Keyboard Pro goes further. Voice Keyboard Pro's Smart Rewrite includes seven distinct actions: rewrite for clarity, shorten, expand, fix grammar and spelling, translate, adjust tone (formal or casual), and convert to bullet points. You select text, trigger an action, and the text is transformed in place.
Wispr Flow offers basic AI rewriting, but it is closer to a single-mode cleanup rather than a toolkit of distinct transformations. For users who regularly need to reshape dictated text — shorten a paragraph for a Slack message, formalize a draft for a client email, translate a response — Voice Keyboard Pro's broader action set saves time.
Where Wispr Flow Wins
Being fair means acknowledging where the competition does well, and Wispr Flow does several things well.
Simpler user interface
Wispr Flow has a clean, minimal interface that gets out of the way. There are fewer settings to configure, fewer options to think about, and fewer decisions to make during setup. If you want to install an app, set a hotkey, and start dictating without thinking about profession modes, custom vocabularies, or AI action menus, Wispr Flow's simplicity is a genuine advantage.
Voice Keyboard Pro offers more features, but more features also means more surface area. Some users prefer a tool that does one thing with zero configuration. Wispr Flow respects that preference.
Faster onboarding
Related to the simpler UI, Wispr Flow gets you from download to dictating with less friction. There is less to set up, less to understand, and less to customize before you are productive. For someone evaluating dictation apps for the first time, that low barrier to entry matters.
Voice Keyboard Pro's onboarding is not complicated — you can be dictating within a minute — but it does surface more options early on (profession selection, custom vocabulary, AI actions), which some users find distracting on the first run.
Good enough for general use
If you do not need specialized vocabulary, do not work in noisy environments, always have internet access, and do not need an iPhone app, Wispr Flow handles basic dictation perfectly well. The core experience — speak and see your words appear on screen — works reliably. For general-purpose dictation of emails, messages, and documents, Wispr Flow is a capable tool.
Nice design
Wispr Flow is well-designed. The visual feedback during dictation is polished, the app feels considered, and it looks good on your Mac. Design matters in tools you use dozens of times a day, and Wispr Flow clearly invested in getting the aesthetics right. Credit where it is due.
Accuracy Comparison
Both Voice Keyboard Pro and Wispr Flow use transcription models based on or derived from OpenAI's Whisper architecture, which has become the industry standard for speech recognition. At the model level, both are working with strong foundations, and for clear, everyday English speech — dictating an email, writing a message, jotting down notes — both produce accurate results.
The accuracy gap opens up in specific scenarios:
- Technical vocabulary. Voice Keyboard Pro's profession-aware system consistently outperforms on domain-specific terms. Medical terminology, legal Latin, programming keywords, financial abbreviations — Voice Keyboard Pro handles these because it knows your context before you speak. Wispr Flow treats all speech the same way, which means it falls back to the model's best guess for unusual terms.
- Custom words. Voice Keyboard Pro lets you add custom vocabulary — names of colleagues, project codenames, company-specific acronyms, product names. These get fed to the transcription model as guidance, significantly improving accuracy for words the model has never seen. Wispr Flow's custom vocabulary support is more limited.
- Noisy environments. Voice Keyboard Pro's voice isolation means the model receives cleaner audio, which directly translates to better accuracy. When background noise is present, Voice Keyboard Pro maintains its accuracy level while other apps — including Wispr Flow — degrade.
- Accented speech. Both apps handle common English accents well. Neither has a decisive advantage here, though Voice Keyboard Pro's custom vocabulary helps with accent-specific word patterns that might otherwise be misheard.
For the average user dictating in a quiet room, both apps will produce results that rarely need correction. The difference shows up at the margins — unusual words, noisy settings, specialized fields — and that is where Voice Keyboard Pro's additional features translate into measurably better accuracy.
Who Should Choose Voice Keyboard Pro
Voice Keyboard Pro is built for people whose work involves language that is not generic. If you fall into any of these categories, Voice Keyboard Pro will serve you better:
- Lawyers and legal professionals. Legal writing is full of Latin terms, case citations, and precise phrasing that general dictation engines butcher. Voice Keyboard Pro's legal profession mode and custom vocabulary handle this naturally. The offline mode also matters for attorney-client privileged communications that should not pass through cloud servers.
- Doctors, nurses, and medical professionals. Medical terminology is vast and specific. "Prednisone" versus "prednisolone" is not a minor distinction. Voice Keyboard Pro's medical mode improves transcription accuracy for clinical terms, drug names, and diagnostic language. Read more in our guide to voice-to-text for doctors on Mac.
- Software developers and engineers. If you dictate code comments, documentation, or technical discussions, you need an app that understands camelCase variable names, framework-specific terms, and command-line syntax. Voice Keyboard Pro's engineering mode and custom vocabulary handle this. See our piece on voice-to-text in VS Code for how this works in practice.
- Researchers and academics. Academic writing involves citation-heavy, jargon-dense prose. Voice Keyboard Pro's ability to learn your custom vocabulary means it quickly adapts to the terminology of your specific field, whether that is molecular biology, macroeconomics, or computational linguistics.
- Privacy-conscious users. If you need the option to dictate without any data leaving your machine, Voice Keyboard Pro's offline mode on Apple Silicon is the only way to achieve that between these two apps. Wispr Flow has no offline capability.
- People who use both Mac and iPhone. If you want one dictation system that works across both platforms, Voice Keyboard Pro is your only option. Wispr Flow does not have an iPhone app.
Who Should Choose Wispr Flow
Wispr Flow is a good fit for a different kind of user. Consider it if:
- You want the simplest possible setup. If you do not want to choose a profession, do not want to configure custom vocabulary, and do not need seven AI actions — if you just want to hold a key, speak, and see text — Wispr Flow's minimalism serves that well.
- Your dictation is general-purpose. Emails, Slack messages, social media posts, personal notes — content that uses everyday English and does not involve specialized terminology. Wispr Flow handles this use case without any of the features it lacks mattering.
- You value aesthetics highly. Wispr Flow is a well-designed app. If you care about visual polish and a refined UI experience in your daily tools, Wispr Flow delivers on that front.
- You are new to voice-to-text. If you are just exploring voice-to-text for the first time and want to start with something simple before committing to a more feature-rich tool, Wispr Flow's gentler learning curve makes it a reasonable starting point.
There is no shame in choosing simplicity. Not every user needs profession-aware vocabulary or offline mode. If you know your needs are straightforward, Wispr Flow is a solid option that will not disappoint.
Switching from Wispr Flow to Voice Keyboard Pro
If you are currently using Wispr Flow and considering a switch to Voice Keyboard Pro, here is what the transition looks like.
Installation and setup
Download Voice Keyboard Pro from voicekeyboardpro.com. It installs as a menu bar app, just like Wispr Flow. The default hotkey is the right Option key — hold it to speak, release to transcribe. If that conflicts with your existing shortcuts, you can remap it in Voice Keyboard Pro's preferences.
Choosing your profession
During setup, Voice Keyboard Pro will ask you to select a profession. This step takes five seconds and meaningfully improves your transcription accuracy. If you are not sure which to pick, "General" works fine and you can change it later.
Adding custom vocabulary
If there are specific words Wispr Flow struggled with — names of people, companies, products, technical terms — add them to Voice Keyboard Pro's custom vocabulary. Open Voice Keyboard Pro preferences, go to the vocabulary section, and type in the words. Voice Keyboard Pro will use these as transcription hints, and you should notice an immediate improvement for those terms.
Exploring AI actions
Voice Keyboard Pro's Smart Rewrite actions are triggered by selecting text and using the Voice Keyboard Pro menu or a keyboard shortcut. Spend a few minutes trying each action — rewrite, shorten, expand, fix grammar, translate, adjust tone, and bullet points — to understand what is available. Most Wispr Flow switchers find the "fix grammar" and "shorten" actions particularly useful for cleaning up dictated text.
What changes
The biggest change you will notice is speed. Voice Keyboard Pro's transcription comes back faster, often before you have fully lifted your finger from the key. You will also notice better accuracy if your work involves any specialized vocabulary. The app itself is lighter — about 1.7 MB compared to Wispr Flow's heavier footprint — so it uses less memory and CPU in the background.
What stays the same
The core workflow is identical. You hold a key, speak, and text appears at your cursor. You do not need to learn a new interaction model. Your muscle memory transfers directly. Both apps work system-wide in every Mac app, so you will not lose coverage in any app you were using before.
Frequently Asked Questions
Is Voice Keyboard Pro better than Wispr Flow?
It depends on your needs. Voice Keyboard Pro is objectively better for users who need specialized vocabulary (legal, medical, engineering), offline dictation, voice isolation in noisy environments, or an iPhone app. Wispr Flow is a strong choice for general users who prioritize simplicity and clean design. For most professionals, Voice Keyboard Pro offers more value per dollar. For casual everyday dictation, both get the job done.
Is Wispr Flow free?
Wispr Flow offers a free trial period, but ongoing use requires a paid subscription at approximately $8 per month. Voice Keyboard Pro offers a free tier with daily usage limits that is sufficient for lighter use, plus a Pro plan at $4.99 per month for unlimited dictation and all features.
Does Wispr Flow work offline?
No. Wispr Flow requires an internet connection for all transcription. If you lose connectivity, dictation stops working entirely. Voice Keyboard Pro offers an offline mode on Apple Silicon Macs (M1 and later) that processes speech entirely on your device. This is useful for travel, spotty connections, and privacy-sensitive work where no audio data should leave your machine.
Can I use both Voice Keyboard Pro and Wispr Flow?
Yes. Both apps can coexist on the same Mac. Assign different hotkeys to each — for example, right Option for Voice Keyboard Pro and a different key for Wispr Flow — and use them side by side to compare. In practice, most people settle on one within a week. Running both continuously is not necessary but it is a low-risk way to evaluate.
Which is more accurate for everyday speech?
For general English speech in a quiet environment, both apps produce similar accuracy rates. They both use Whisper-based models that are among the most accurate available. Voice Keyboard Pro pulls ahead in three specific areas: technical/specialized vocabulary (thanks to profession-aware mode), custom words (names, acronyms, jargon), and noisy environments (thanks to voice isolation). If your dictation falls outside those edge cases, you will not notice a meaningful accuracy difference between the two.
The Bottom Line
Wispr Flow is a good dictation app. It works, it looks nice, and it serves general users well. We have no interest in pretending otherwise.
Voice Keyboard Pro is a more complete voice-to-text tool. It handles the basics just as well as Wispr Flow, but it also extends into territory that Wispr Flow does not cover: specialized vocabulary for specific professions, voice isolation for real-world environments, offline processing for privacy and connectivity, an iPhone keyboard for mobile dictation, and a deeper set of AI actions for transforming text after you dictate it.
If you are choosing between the two, the honest answer is this: if your needs are simple, either app will make you happy. If your needs are specific — if you work in a specialized field, if you dictate in noisy spaces, if you need offline mode, if you want your phone and your Mac to share the same dictation system — Voice Keyboard Pro is the one that covers those requirements.
You can try Voice Keyboard Pro free right now. Download it from voicekeyboardpro.com, set your profession, and be dictating in under sixty seconds. If you are coming from Wispr Flow, the transition takes about two minutes. Your workflow stays the same. Your results get better.