Private Transcription Apps That Don't Upload Your Audio

Quick answer: A private transcription app is one where your audio is never sent to the company that makes it. Lyonesse is built that way: recording, transcription, summaries, speaker labels and Q&A all run on your iPhone, iPad or Mac, and no account is needed. Below is what that does and doesn't cover, and a five-minute way to check any app yourself, including ours.

The Hidden Privacy Cost of Cloud Transcription

Most transcription services work by uploading your recording to their servers, where the transcription happens. Once the file is there, what happens to it depends on that company's terms. Depending on the service, a recording may be:

• kept on the provider's servers for as long as your account exists, or longer
• readable by staff or contractors in some circumstances
• used to improve their models, if the terms allow it
• exposed in a breach, or handed over under a legal order

For a grocery list, who cares. For a client call, a patient interview, a source conversation or a board meeting, it's worth knowing before you hit upload.

How to Check Any Transcription App Yourself

Marketing pages (ours included) can say anything. These four checks take a few minutes and work on any app.

1. Airplane-mode test. Switch on airplane mode, then record and transcribe a short clip. If the transcript still appears, the transcription is happening on the device. If you get an error or a spinner, the audio needs a server. Note that this tests transcription only. Some apps do the transcription locally and still send other data.
2. Read the App Store privacy label. On the app's App Store page, scroll to "App Privacy". "Data Not Collected" is the best answer. "Data Linked to You" lists what the company ties to your identity. Look for "Audio Data", "User Content" and "Identifiers". The label is the developer's own declaration, so treat it as a claim to compare with the other checks, not proof.
3. Check whether an account is required. If you must sign up before the first recording, your recordings are tied to an identity on the company's side. Apps that work from the first launch with no login usually have less reason to hold your data.
4. Find out where the text lives. In the app's settings and privacy policy, look for sync, "cloud backup" or "web access". If you can open your transcripts in a browser, they are stored on a server. If the app syncs, find out whether it uses your own iCloud account or the company's servers.

Want to run these on Lyonesse? It's free to download on the App Store.

What Makes a Transcription App Private

Here's how a typical cloud tool and Lyonesse differ on the points that matter. The cloud column describes how cloud transcription works in general, not any one company. Check the specific tool's own privacy policy for retention and training terms, because they vary and change.

What Lyonesse Does on Your Device, and What Leaves It

On the device: recording, transcription, summaries, action items, speaker labels, search and Q&A. The AI parts use Apple Intelligence and models stored on your iPhone, iPad or Mac. There is no Lyonesse account and no Lyonesse server that receives your recordings.

What can leave the device, and why:

• Languages with no on-device model. Lyonesse tells the speech engine to stay on the device. If a language has no on-device model, transcription is blocked until you turn on "Allow Apple servers for this language" in Settings. It's off by default and set per language. Only if you switch it on does audio in that language go to Apple's servers.
• iCloud sync. It is on by default. It stores your notes, transcripts and summaries in your own iCloud account so they appear on your other devices. You can turn it off in Settings.
• Subscription checks. Lyonesse checks your subscription through the App Store and RevenueCat.
• Usage and crash reports. The app records which features get used and why it crashed, so we can fix things. Recordings, transcripts and note text are not part of that.

Details are in the privacy policy. Your phone is the weak point of any on-device setup: anyone who can unlock it can read what's on it, so use a passcode.

Can a Transcription App Be Private and Still Have AI Summaries?

Yes, as long as the summary model runs on the device too. Many tools that advertise "private" transcription still send the finished transcript to a cloud AI service for the summary. Ask where the summary is written. Apple's own Voice Memos is a plainer option, and this comparison shows what it does and doesn't do. In Lyonesse, summaries, action items and Q&A come from on-device models, so you can generate one in airplane mode. For more on how the two approaches differ, see on-device AI vs cloud AI.

Who Needs Private Transcription?

• Lawyers with deposition audio and privileged client calls (see how to transcribe client meetings privately).
• Healthcare workers recording patient interviews or dictating notes. Read our HIPAA-friendly transcription guide first, because an app on its own doesn't make you compliant.
• Journalists protecting sources.
• Executives recording strategy and board discussions.
• Therapists and counselors keeping sessions confidential.
• Anyone who'd rather their conversations didn't sit on someone else's server. If you also want a recorder with nothing else attached, see private voice recorder apps.

If You Already Use a Cloud Tool

Cloud services such as Otter.ai, Rev and Fireflies.ai work by processing audio on their servers and need an account (see whether Fireflies works offline). If that doesn't fit a recording, these pages cover the on-device alternative for each:

• Otter.ai offline alternative
• Rev offline alternative

Related reading

• How to transcribe an interview
• A Plaud alternative for iPhone
• Apple's new Speech API vs Whisper: the first real benchmark
• Round 2: Parakeet and MOSS vs Apple's Speech APIs, benchmarked

Frequently Asked Questions

What is the most private transcription app?

The most private kind is an app that transcribes on the device, needs no account and keeps the transcript on the phone. Lyonesse works that way, and it can also transcribe a Zoom or Teams call on a Mac without a bot. Run the checks above on any app before you rely on it.

Is on-device transcription really private?

For the audio, yes: it isn't sent to a transcription company, so there's no server copy to store, breach or train on. It doesn't protect against someone with access to your unlocked phone, and if iCloud sync is on, your notes are stored in your own iCloud account.

Can a transcription app be private and still have AI summaries?

Yes, if the summaries are written by a model on the device. Lyonesse does this. Generate a summary in airplane mode to see it for yourself.

Do transcription apps upload my audio?

Cloud services do, because that's where the transcription happens. Lyonesse doesn't upload audio to us. The one exception is a language with no on-device model, where audio goes to Apple's servers only if you switch it on for that language.

Comparing against a specific cloud app? See the Notta alternative and Granola alternative pages.