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Superwhisper vs Rambleproof
Both can keep dictation on your Mac. Superwhisper offers a wide model and mode toolbox across several platforms. Rambleproof focuses on a guarded push-to-talk path for Apple Silicon Macs.
By Moe Lueker, founder of Rambleproof. Facts checked . We make Rambleproof, so read this as an editorial comparison with a stake in the outcome, not a neutral review.
The short version
Consider Superwhisper if you want to choose among many voice models, language models, modes, and platforms. Consider Rambleproof if you want a narrower local-first Mac workflow with explicit cleanup checks, a simpler fallback when a check fails, and a Free tier you activate once. Both publish monthly, annual, and lifetime paid options, but their feature boundaries and prices differ.
What Superwhisper publishes
Superwhisper's site lists Mac, Windows, iOS, and Android. Its official Pro documentation says one license covers its platforms, with no device limit for Mac and Windows computers. Its models page lists on-device transcription and language models as well as optional cloud models. Its modes can select a voice model, connect supported API tokens, apply AI processing, and switch automatically for particular apps or sites.
Superwhisper's official pricing is $8.49 a month, $84.99 a year, or $249.99 once for Lifetime. Its 26 August 2026 release notes changed the free trial to a 3,000-word Pro trial and made all local Whisper models free on macOS. Older onboarding copy still mentions 15 minutes, so this comparison follows the newer release note. Website and App Store prices can differ.
What Rambleproof publishes
Rambleproof is built only for Apple Silicon Macs running macOS 15 or later, including macOS 27 (macOS 26 or later recommended). Its default workflow is hold the configured shortcut, speak, and release. It processes transcription and cleanup locally, checks high-risk cleanup changes, and returns a safer fallback when cleanup is rejected. New installations activate once with a verified account or license.
Free includes unlimited raw local dictation forever, 15,000 AI-cleaned words each week, deterministic cleanup after the weekly allowance, two custom modes, complete local history, and every safety feature. Free dictation works offline after activation.
Pro is $12 a month or $96 a year, with a 14-day preview that starts on the first successful dictation. Managed cloud is planned for a future release, with pricing and availability to be announced separately. Lifetime is $200, with a $150 introductory price for the first 60 days from the new pricing launch. Lifetime includes everything local and your own API keys. Managed cloud and cloud sync are not included and are not available yet.
Where the product models diverge
Superwhisper exposes model, mode, prompt, and auto-activation choices for people who want to shape different kinds of output. Rambleproof offers two custom modes on Free but keeps ordinary push-to-talk dictation on a focused default path. Its cleanup layer is designed to reject risky changes and fall back, not to guarantee that every output will be error-free.
Side by side
| Question | Superwhisper | Rambleproof |
|---|---|---|
| Local processing | On-device models plus optional cloud models | Local by default; paid bring-your-own-key routes are optional |
| Output controls | Modes, models, AI instructions, auto-activation rules | Guarded cleanup, custom modes, transcript fallback |
| Platforms | Mac, Windows, iOS, Android | Apple Silicon Mac, macOS 15+, including 27 (26+ recommended) |
| Account in the app | License activation | One-time account or license activation |
| Free tier | Voice dictation and basic transcription | Unlimited raw dictation; 15,000 AI-cleaned words a week |
| Monthly and annual | $8.49 monthly; $84.99 annually | $12 monthly; $96 annually |
| Lifetime | $249.99 | $200 list; $150 founding |
Accuracy and speed
These are model benchmarks, not a head-to-head test of the two apps. Both apps can use Parakeet, and Superwhisper also offers Whisper and other models. The figures do not establish which app is faster or more accurate from recording through cleanup and insertion. See Superwhisper’s current model catalog.
Accuracy and speed
- Rambleproof, or the engine family it runs
- Other tools and engines
19% fewer words wrongwith Parakeet v2 than with Whisper large-v3, on the same audio. These are speech engines, not apps.
Same audio, independent leaderboard
* Measured elsewhere, on different audio
Lower is better. Rows marked * or † were measured elsewhere. Parakeet v2 makes about 14 fewer word errors per thousand than Whisper large-v3 on an independent leaderboard. It compares two engines, not two apps. Superwhisper can run Parakeet too, and Rambleproof's default English model is Parakeet Unified, a different configuration. Wispr Flow and Apple come from other sources.
Sources and the numbers as a table
- *Not the same test as the unmarked bars: different audio, in a different year. Wispr Flow 8.7% is published by Superwhisper, a direct competitor, and another rival puts it at 6.2%. Apple is the University of Washington's figure for single words read aloud, measured in 2022: 14% for the best-served speaker group, 24% for the other three.
Sources: Open ASR Leaderboard, English short-form. * Scott, Liang, Wassink and Levow, University of Washington (arXiv:2510.22495).
The leaderboard measures speech engines, not whole apps, averaged over 8 datasets: AMI, Earnings22, GigaSpeech, LibriSpeech clean, LibriSpeech other, SPGISpeech, TED-LIUM v3, VoxPopuli. Before 1.0.9, Rambleproof's own end-to-end time was 1.32s median over 37 dictations (key release to cleaned text at the cursor, MacBook Air M4, macOS 26.5.1); 1.0.9 streams transcription while you talk and brings that to about 1 second.
| Tool | What was measured | Accuracy | Measured by |
|---|---|---|---|
| Parakeet v2 | Parakeet TDT 0.6B v2 | 6.05% | Open ASR Leaderboard, English short-form |
| Whisper large-v3 | Whisper large-v3 | 7.44% | Open ASR Leaderboard, English short-form |
| Wispr Flow | engine not disclosed | 8.7% | Superwhisper, a direct competitor |
| macOS Dictation | Apple Speech API, single words, 2022 | 14.0% | University of Washington |
What everyone else publishes, and who published it
The full set of figures the dictation industry publishes about itself, including the ones the chart above draws. Every one was produced by a company selling one of the products being scored, and none publishes a corpus you could use to check the result, which is why they are charted apart from the independent benchmark rather than beside it. Where two of them measure the same product, both are listed, disagreement included.
| Tool | Figure | Value | Published by |
|---|---|---|---|
| Wispr Flow | Word-error rate | 6.2% | LumeVoice A competing dictation app, ranking itself first in the same table. No corpus or method published. |
| Superwhisper | Word-error rate | 3.6% | LumeVoice Same table, same publisher. Disagrees with the independent leaderboard figures for the Whisper and Parakeet engines charted above, both engine families Superwhisper offers. |
| macOS Dictation | Word-error rate | 20.9% | LumeVoice Same table. Other dictation blogs put the same product between 7.8% and 18%, which is the spread you get when nobody shares a corpus. |
| Wispr Flow | Word-error rate | 8.7% | Superwhisper A direct competitor measuring Wispr Flow. Publishes more of its method than most, but is still a contestant scoring a rival. |
| Wispr Flow | Time to final text | 0.80 s | Embertype A competing dictation app. No trial count and no method stated. |
| Superwhisper | Time to final text | 1.40 s | Embertype Same post, same absence of method. |
| macOS Dictation | Time to final text | 0.30 s | Embertype Same post. Yapper measures the same product at 760 ms, which is 2.5 times slower. |
| macOS Dictation | Time to first character | 760 ms | Yapper A competing dictation app, but the best method of the set: 100 trials per app on an M3 Pro, timed off 120 fps screen capture. It measures the first character, not the finished text. |
The only numbers on this page we measured ourselves are Rambleproof's, and we say exactly how: in 1.0.9, about 0.3 seconds from letting go to raw text and about 1 second to cleaned text at the cursor, on a MacBook Air M4 (1.32 seconds median across 37 dictations before 1.0.9). The one competitor timed the same way is Wispr Flow, from its own logs on the same Mac, shown in the chart's speed tab.
Where Superwhisper offers more choice
Rambleproof does not offer Windows or mobile apps. Superwhisper also publishes a much larger model catalog, mode-level processing controls, file transcription, and speaker separation. Those differences matter when dictation is one part of a broader audio or text workflow.
Where Rambleproof narrows the path
Rambleproof is aimed at people who want local Mac dictation to behave like a faster keyboard: start from one shortcut, clean false starts and fillers, preserve protected facts, and fall back when a change looks unsafe. Its Free tier, with 15,000 AI-cleaned words a week, and its lower Lifetime price create a different entry point, without claiming to replace Superwhisper's broader toolbox.
Download Rambleproof free or compare Rambleproof plans.
Official sources
- Superwhisper Pro pricing and cross-platform licensing
- Superwhisper release notes for the current Pro trial and free local models
- Superwhisper local and cloud model catalog
- Superwhisper modes and processing choices
Related reading
Where Rambleproof fits
Unlimited raw local dictation forever, with 15,000 AI-cleaned words each week at Light or Medium, then basic cleanup (fillers and punctuation, no AI rewrite) until Monday. Activate once with an account or license. Every safety feature stays available on Free.