The case against subscription dictation apps.

The test that settles it

Ask one question about any dictation app: where does the audio get turned into text. If the answer is a server, somebody is paying for machines that run whether you use them or not, and a monthly price is a fair reflection of a real cost. If the answer is your Mac, nobody has a recurring cost, and the subscription is a pricing decision rather than a technical one.

Both are legitimate businesses. Only one of them is charging you for something that is happening.

What a subscription is actually buying

It is worth being fair here, because subscriptions do pay for things. Continuous development. Support. Servers, if there are servers. The argument against them for on device software is not that the developer should work for free, it is that the shape of the payment should match the shape of the cost. A one time price with free updates pays for development too; it just does it without pretending there is an ongoing bill.

The arithmetic

The interesting number is never the monthly one. Fifteen dollars a month is five hundred and forty over three years, against fifteen once. The gap is not a rounding error on a tool you use every working day for the length of a job, and it is entirely a function of which model the vendor chose.

The full table, with each vendor's own published figures, is on the voice typing page. The short version is that Zumbo, VoiceInk and MacWhisper are bought once, Superwhisper publishes both, and Wispr Flow is a subscription above a free weekly allowance.

What you own at the end

• Speech engine inside the app
• 570 MB, downloaded once
• Works with the Wi-Fi off
• No account, no API key
• Unplug the internet and it works exactly the same.

A one time purchase has a quiet property that only matters once: if the company stops, you still have working software. Nothing calls home for permission, because there is no account and no server. Zumbo sends a licence key when you activate and a version number once a day to check for updates, and if both were blocked forever, dictation would keep working.

A subscription is the opposite by design. Access is the product, and access ends when payment does. For a service that is honest, because the service also ends. For software on your own disk it is a risk you are carrying for someone else's convenience.

Where the one time price has to earn it

The obvious objection is that a single payment means less incentive to keep improving. That is real, and the answer is not a promise, it is a structure: a price low enough that the next major version is worth buying, updates free within it, and no ongoing cost pretending to be a service. Fifteen dollars once, twenty for three Macs, seventy nine for ten.

Related: the three year arithmetic across all six apps, all six side by side, and Zumbo against Wispr Flow.