Kudu vs Wispr Flow

Polished dictation,
without the cloud.

Wispr Flow is a popular cloud dictation app. Kudu gives you the same clean, formatted writing, but it runs entirely on your computer and costs nothing.

KuduWispr Flow
Where your voice is processedOn your computer. Audio never leaves it.Sent to Wispr’s servers; may be shared with third-party LLM providers
Works offlineYes, after a one-time model downloadNot stated
AccountNoneRequired
PriceFreeFree up to 2,000 words a week on desktop; Pro is $15 a month ($12 billed yearly)
Source codeOpen source (MIT)Closed
Learns your wordsYes, from your corrections, on-deviceYes, learns your words and names
Style per appYes: formal, casual or very casual for each kind of appYes: messages, work chats, email and more
SnippetsYesYes
PlatformsmacOS (Apple Silicon); Windows and Linux in betaMac, Windows, iPhone and Android
LanguagesEnglish100+
ComplianceNothing to certify: there’s no server holding your dataSOC 2 Type II, ISO 27001, HIPAA-ready with a BAA

Where Wispr Flow is stronger

  • Your phone, too

    Flow has apps for iPhone and Android. Kudu is desktop-only for now.

  • Many more languages

    Flow lists over 100 languages. Kudu currently transcribes English.

  • Built for teams

    Shared dictionaries, admin controls and compliance paperwork for companies.

Where Kudu is different

  • Nothing leaves your computer

    No upload, no third-party models, no retention policy to read. The speech model runs on your own chip.

  • Free, with no word limit

    No weekly cap and no subscription. Dictate as much as you like.

  • No account, works offline

    Install it and hold the key. On a plane or behind a strict firewall, it still works.

  • Open source

    Read every line, build it yourself, or change how it formats your writing.

Sources, checked October 2026

Wispr Flow is a trademark of its owner; Kudu isn’t affiliated with it. Details about Wispr Flow come only from its public website and may have changed since. Spotted something out of date? Let us know.

Try Kudu. It’s free.

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