Comparison
The free, open-source Wispr Flow alternative
The short answer
If you want hold-to-talk dictation on macOS or Linux without a subscription, WhisprCatch is the closest free equivalent to Wispr Flow. Same gesture: hold a key, talk, let go, and punctuated text lands wherever your cursor is. The difference is that the speech model runs on your own CPU, so it costs nothing and your audio never goes anywhere.
Wispr Flow is still better if you need Windows, a phone app, or AI that rewrites your tone. Both facts fit on the same page, and both are below.
Install it freeWhat Wispr Flow is
Wispr Flow is a paid voice-dictation app from Wispr AI. You hold a key, speak, and it types cleaned-up text into whatever app you're in. It runs on Mac, Windows, iPhone and Android, handles 100+ languages, learns the names and jargon you use, and can rewrite what you said so it reads more formally or more casually depending on where you're typing.
It's a good product. The catch is the shape of the deal: your audio goes to their servers, the free tier caps you at a couple of thousand words a week, and the unlimited tier is $12 a month billed annually, or $15 month-to-month (as listed on wisprflow.ai/pricing in August 2026). Call it $144 to $180 a year, every year, to talk to a computer you already own.
What WhisprCatch is
WhisprCatch is an MIT-licensed dictation app for macOS and Linux that does the same core thing and nothing else. Hold Right ⌘ on a Mac or Right Alt on Linux, say your sentence, let go, and the punctuated, capitalised version is typed wherever your cursor already was. Words stream in live while you're still talking.
The speech model is either NVIDIA Parakeet 0.6B (about 660 MB) or Moonshine base (about 64 MB), running int8 through ONNX Runtime on your CPU at around 25 times realtime. No GPU. No server. After the one-time model download it works with the Wi-Fi switched off, and there's no analytics code in the binary to argue about.
Side by side
Checked in August 2026. Wispr Flow's column reflects its published pricing and feature pages; if something here has gone stale, open an issue and it gets fixed.
| WhisprCatch | Wispr Flow | |
|---|---|---|
| Price | $0, no tiers | Free tier with weekly caps, Pro at $12 to $15 a month |
| Three-year cost | $0 | $432 to $540 on Pro |
| Where transcription runs | Your CPU | Their servers |
| Works offline | Yes, after one model download | No |
| Account needed | No | Yes |
| Word limits | None | Free tier is capped weekly |
| Source code | MIT, public | Closed |
| Linux | Yes, .deb, X11 and Wayland | No |
| macOS | Yes, Apple Silicon | Yes |
| Windows | No | Yes |
| iPhone and Android | No | Yes |
| Punctuation and capitalisation | Yes, from the model | Yes |
| AI tone rewriting | No, it types what you said | Yes |
| Learns your vocabulary | Not yet | Yes |
| Snippets and shortcuts | No | Yes |
| Languages | English (model dependent) | 100+ |
| Team billing and admin | No | Yes |
| Audio used for training | Impossible, it never leaves | Opt out in privacy settings |
The pricing maths
A subscription is easy to wave off at $15. Stretched out, it's the whole argument:
- One year on Wispr Flow Pro: $144 annual, $180 monthly. WhisprCatch: $0.
- Three years: $432 to $540. WhisprCatch: $0.
- Five years: $720 to $900. WhisprCatch: still $0.
- A five-person team, three years: $2,160 to $2,700. WhisprCatch: $0, with nobody to invoice.
There's a slider on the home page if you want to plug in your own numbers. The point isn't that $15 is outrageous. It's that the transcription is happening on a chip you already paid for.
Which one should you actually use?
Pick WhisprCatch if
You want it free and private
- You're on macOS or Linux and that's where you work
- You'd rather your voice never left the machine
- You dictate on planes, trains, and bad hotel Wi-Fi
- You want to read the code before trusting it
- You want punctuated text, not a model's rewrite of you
- You're allergic to another monthly line item
Pick Wispr Flow if
You need the extras
- You're on Windows, or you dictate from your phone
- You want the same setup synced across devices
- You want AI to adjust tone per app
- You switch between many languages mid-sentence
- You need snippets and a learned dictionary
- You're buying seats for a team with central billing
Plenty of people run both, honestly. Free tool on the laptop, paid app on the phone.
Switching over takes about a minute
On macOS
Open the app, let the wizard walk you through Accessibility, Input Monitoring and Microphone, then quit and reopen it once. That last step matters: macOS only re-reads permissions when an app starts, so a fresh grant reads as denied until you relaunch. Then hold Right ⌘ and talk.
On Linux
Grab the .deb from the latest release, install it, answer one polkit prompt for keyboard access, and hold Right Alt. Works on X11 and Wayland.
Then
Cancel the subscription. Set the push-to-talk key to whatever you had bound before
(it's in settings, and most keys are fair game). Run
whisper-catch doctor if anything feels off, it prints exactly which
permissions are live and which model is loaded.
Common questions
What is the best free alternative to Wispr Flow?
WhisprCatch is the closest free, open-source equivalent for macOS and Linux. Same hold-a-key-and-talk pattern, types punctuated text into whatever app has focus, and it costs nothing because the speech model runs on your own CPU instead of a server. The code is MIT-licensed at github.com/AviroopPaul/whisper-catch.
Is there a Wispr Flow alternative for Linux?
Yes. Wispr Flow doesn't ship a Linux app at all. WhisprCatch does: a .deb for Ubuntu and Debian on x86-64, working on both X11 and Wayland, with a one-time polkit prompt for keyboard access. Hold Right Alt, speak, release.
How much does Wispr Flow cost?
As published on wisprflow.ai/pricing in August 2026: a free tier with weekly word limits, and Pro at $12 a month billed annually or $15 month-to-month. That's $144 to $180 a year, or roughly $432 to $540 over three years. WhisprCatch has no paid tier to compare against.
Is WhisprCatch as accurate as Wispr Flow?
For plain dictation the gap is small. Parakeet 0.6B and Moonshine both produce properly punctuated, capitalised text. Wispr Flow pulls ahead on personalisation: it learns your names and jargon over time and can rewrite your tone with a cloud model. WhisprCatch types what you said and stops there, which some people prefer and some don't.
Does WhisprCatch send my voice to a server?
No. The model runs as int8 ONNX on your CPU. No network calls while you dictate, and audio is never written to disk. The only network use is the one-time model download during setup, after which the app runs offline.
How do I switch from Wispr Flow?
Install WhisprCatch (one Homebrew command on macOS, one .deb on Linux), grant the permissions, quit and reopen once, then cancel your subscription. Rebind the push-to-talk key in settings if you had muscle memory for a different one.
Go on then
Stop paying to talk.
Free, open source, and running on your own machine in about a minute.