Stack SpeakBar vs Superwhisper
Stack SpeakBar vs Superwhisper — which Mac dictation app should you pick?
Push-to-talk dictation has quietly become one of the highest-leverage tools on a Mac. Hold a hotkey, talk, paste cleaned text — for anyone who writes for a living, the per-day time savings dwarf almost any other productivity tweak. Stack SpeakBar and Superwhisper are the two best options, and they have made very different bets. Superwhisper went deep on on-device Whisper: your voice never leaves the laptop, full stop, and there is a one-time-purchase license option for users who hate subscriptions. Stack SpeakBar went deep on cleanup quality: a Groq-hosted Whisper pipeline followed by a Llama 3.3 cleanup pass that removes filler words, fixes grammar, and produces text you can paste straight into an email. This page compares them honestly on the dimensions that actually decide the pick — privacy, cleanup quality, latency, pricing, and the kind of Mac you happen to own.
Pick Stack SpeakBar if…
Pick SpeakBar if you want the cleanest paste-ready output and a bundled price.
SpeakBar is the right call if your dictation lands directly in customer-facing text — emails, Slack, docs, support tickets, code comments. The Llama 3.3 cleanup pass is a real edge over plain Whisper output: ums and uhs disappear, run-on sentences get punctuated, grammar is tightened, and the result reads like you wrote it on purpose. Round-trip latency is ~400 ms via Groq, which feels instant in practice. SpeakBar is also the only dictation app bundled with seven other Stack tools (Slate, Stream, Scribble, Momentum, Sync, Chat, Timekeeper) for $20/month — or $15/month standalone if dictation is all you need. If you are not in a privacy-sensitive industry, the cloud round-trip is invisible and the cleanup quality wins.
Pick Superwhisper if…
Pick Superwhisper if your transcripts cannot leave your laptop.
Superwhisper's on-device Whisper option is genuinely offline — no cloud, no network, no third-party processor in the loop. For lawyers under privilege, clinicians handling PHI, defense and intel work, journalists protecting sources, and anyone who has signed a contract that forbids cloud transcription, this is not a nice-to-have, it is the only acceptable answer. Superwhisper also offers a one-time $96 lifetime license for users who refuse to rent software, and it ships with multiple Whisper model sizes you can swap based on your Mac's RAM headroom. If you own an M1 Pro or better and privacy is a hard requirement, Superwhisper is the right pick and SpeakBar is not in the running. Be honest about that.
Feature-by-feature breakdown
| Feature | Stack SpeakBar | Superwhisper | Winner |
|---|---|---|---|
| On-device transcription (no cloud) | No — Groq cloud only | Yes — full offline Whisper | Superwhisper |
| Round-trip latency | ~400 ms via Groq | ~600 ms–2 s on-device (model + Mac dependent) | Stack |
| Cleanup pass quality | Llama 3.3 — removes filler, fixes grammar | Lighter cleanup; output closer to raw Whisper | Stack |
| Push-to-talk hotkey + paste at cursor | Yes | Yes | Tie |
| Works offline / on a plane | No (needs internet) | Yes (on-device mode) | Superwhisper |
| Multiple Whisper model sizes | N/A — fixed cloud model | Yes — pick by Mac RAM | Superwhisper |
| One-time-purchase option | No — subscription only | Yes — $96 lifetime (Pro) | Superwhisper |
| Standalone monthly price | $15/mo | $25/mo (Cloud tier) | Stack |
| Bundled with other apps | $20/mo for 8-app Stack bundle | No — dictation only | Stack |
| Mac hardware requirement | Any modern Mac | M1+ for on-device; M2 Pro+ recommended | Stack |
| RAM / disk footprint | Minimal (cloud) | 1–6 GB depending on model | Stack |
| Custom vocabulary / dictionary | Yes | Yes | Tie |
| Always-the-same behavior | Yes — identical every session | Varies with model + battery + thermals | Stack |
Pricing
Stack SpeakBar
$15/mo standalone, or $20/mo for the full Stack bundle (SpeakBar + 7 other apps, unlimited users in one workspace)
Superwhisper
$25/mo Cloud subscription, or $96 one-time for the Pro lifetime license (on-device + cloud)
Dictation is overwhelmingly a per-individual tool, so the honest comparison is one user, not five. On Superwhisper Cloud at $25/month you spend $300/year. On SpeakBar standalone at $15/month you spend $180/year, and on the full Stack bundle at $20/month you spend $240/year and get seven other apps thrown in. If you are subscription-allergic, Superwhisper's $96 Pro lifetime license is the cheapest option over any horizon longer than ~6 months — that is a legitimately strong offer and we will not pretend otherwise. The right framing: pick on price only if you are budget-constrained or you want the lifetime license; otherwise pick on cleanup quality vs privacy.
UX differences worth knowing
Pasted output quality
Stack SpeakBar: Llama 3.3-cleaned — paste-ready for emails and docs without a re-read
Superwhisper: Closer to raw Whisper — usually wants a quick edit before sending
First-run experience
Stack SpeakBar: Sign in, set a hotkey, talk — no model download
Superwhisper: Pick + download a Whisper model (1–6 GB), warm it up, talk
On a flight or bad Wi-Fi
Stack SpeakBar: Does not work — needs the Groq round-trip
Superwhisper: Works perfectly — that is the whole point of on-device
Battery + thermals
Stack SpeakBar: Negligible local CPU — laptop stays cool
Superwhisper: On-device inference spins fans on long sessions, especially on smaller Macs
Behavior consistency
Stack SpeakBar: Identical latency and quality every time
Superwhisper: Varies with chosen model, battery state, and what else is running
Privacy story to your security team
Stack SpeakBar: "Audio + transcripts go to Groq under their DPA"
Superwhisper: "Audio never leaves the laptop" — much shorter conversation
Switching from Superwhisper
Switching between SpeakBar and Superwhisper is mostly painless because dictation apps do not own much state. Custom vocabulary and personal dictionaries are easy to re-enter; hotkeys are easy to rebind. The one real friction is muscle memory — push-to-talk becomes deeply automatic within a week or two, and switching apps means a few days of fumbling the new hotkey before it locks in. If you are leaving Superwhisper because you want better cleanup, give SpeakBar a week before judging — the cleanup pass is the whole pitch and it shows up most on long-form dictation, not 5-second one-liners. If you are leaving SpeakBar because you need on-device transcription, do not try to half-migrate; commit fully and accept the lighter cleanup as the price of true offline privacy.
FAQ
Is SpeakBar a Superwhisper alternative?+
For most use cases, yes. SpeakBar covers the same core flow — push-to-talk hotkey, Whisper transcription, cleanup, paste at cursor — with better cleanup quality (Llama 3.3) and a lower standalone price. The one place SpeakBar is not a Superwhisper alternative is on-device privacy: SpeakBar is cloud-only, Superwhisper has a true offline mode. If on-device matters to you, stay on Superwhisper.
Why does SpeakBar use the cloud instead of on-device Whisper?+
Speed and consistency. Groq runs Whisper on custom inference hardware and returns transcripts in ~400 ms regardless of which Mac you own — including older Intel machines and M1 Airs that struggle with larger Whisper models locally. The cleanup pass also runs on Llama 3.3 in the cloud, which would be much heavier on-device. The tradeoff is that SpeakBar needs internet; for the privacy-sensitive minority who cannot send audio to a cloud, Superwhisper is the right tool.
How much better is SpeakBar's cleanup actually?+
On short utterances (a quick Slack message, a one-line search query) the difference is small — both apps produce usable text. On long-form dictation (a paragraph email, a doc draft, a thoughtful PR review) the gap is large: SpeakBar removes filler words, fixes run-on sentences, repairs broken grammar from mid-sentence corrections, and produces text you can paste without re-reading. Superwhisper's cleanup is lighter and the output usually wants a quick edit. If you dictate long-form, the gap is meaningful; if you only dictate one-liners, it is mostly a wash.
Can Superwhisper really run fully offline?+
Yes — that is its core feature. With a Whisper model downloaded locally, you can use Superwhisper on a plane, in a SCIF, or on an air-gapped machine, and audio never leaves the laptop. You will want an M1 Pro or better for the larger models; M1 Air and M2 Air work but you will be limited to smaller models with lower accuracy. SpeakBar has no offline mode; if you need offline, Superwhisper is the answer.
How do the prices really compare?+
Standalone monthly: SpeakBar is $15/month, Superwhisper Cloud is $25/month. Yearly: $180 vs $300. SpeakBar in the Stack bundle is $20/month and includes seven other apps. Superwhisper offers a $96 one-time Pro lifetime license, which is the cheapest option past about 6 months and is a genuinely strong offer for subscription-averse users. There is no SpeakBar lifetime license.
Will my Mac handle Superwhisper on-device?+
Probably, but it depends on the model size and your Mac. M1/M2 Air can run small and base Whisper models comfortably; medium models work but warm up the laptop. M1 Pro / M2 Pro / M3 Pro and better can run large models with good accuracy and minimal thermal impact. Intel Macs are not realistically usable for on-device Whisper. If you are on an older or smaller Mac, SpeakBar's cloud model removes that variable entirely.
Can I use both?+
Yes, and a few users do — Superwhisper for sensitive work (client calls, medical notes, legal drafts) and SpeakBar for everything else (Slack, public docs, email, code comments). The hotkeys can be different so muscle memory does not collide. This is a niche pattern but a legitimate one if you have a clean split between privileged and non-privileged dictation.
Verdict
Both apps are good. The honest answer is: the right pick depends almost entirely on whether your transcripts can legally and ethically touch a cloud. If they can, SpeakBar wins on the dimensions you actually feel day-to-day. The Llama 3.3 cleanup pass produces noticeably better paste-ready output than Superwhisper's lighter post-processing — fewer filler words, better punctuation, tighter grammar. Latency at ~400 ms via Groq is fast enough to feel instant. The price math is also better: $15/month standalone beats $25/month Cloud, and the $20/month bundle adds seven other apps for $5 more. The "always cloud, always works the same" model is its own underrated feature — no model picking, no thermals, no first-run download, no warm-up. If your transcripts cannot touch a cloud — privilege, PHI, defense work, source protection, contractual prohibitions — Superwhisper is the right pick and SpeakBar is not in the running. The on-device Whisper option is genuinely offline, the privacy story to a security team is one sentence long, and the $96 lifetime license is a fair deal for users who want to own their tools. For everyone else, the right framing is: are you willing to accept slightly less polished cleanup in exchange for true on-device privacy? Most people are not, and SpeakBar is the better daily driver. A meaningful minority are, and Superwhisper is theirs to keep. Either way, dictation pays back the subscription within a week of real use.
Try Stack — $20/mo flat for all 8 apps.
Stack SpeakBar comes bundled with seven other work tools. One subscription, no per-seat surprise.