Letterly vs AudioPen
Letterly's free plan rewrites one way. AudioPen's comes with every style.
Letterly turns voice notes into clean text on iPhone, Android, Mac, Windows and the web. Its free plan rewrites with one option, Magic. The rest come with Pro: $19.99 a month on the US App Store, or less by the year. AudioPen's free plan already writes in every built-in style and in styles you make yourself.
Free to start. Loved by over 200,000 people.
The verdict
Which one should you use?
Try AudioPen free before you pay for Letterly Pro. Talk through next week on a walk and get it back as Bullet Points. Vent about a late invoice and get a Casual Email you can actually send. All of that works free, and signing up takes an email, not a card.
Letterly's free plan gives you 10 notes, recordings up to 3 minutes, 20 dictations (up to a minute each on iPhone and Android, three on Mac and Windows) and 10 rewrites in total. Every other rewrite option needs Pro, and Pro has a 7-day free trial.
Letterly Pro adds recordings up to 90 minutes, unlimited dictations of 15 minutes or less, audio uploads and the Apple Watch app.
AudioPen Prime adds recordings up to 15 minutes, restyling a saved note, combining notes into one, audio file uploads and the AudioPen MCP for ChatGPT and Claude.
What a month costs, by how long you buy
AudioPen Prime, web checkout
- 2 years, $159$6.63 a month
- 1 year, $99$8.25 a month
- 3 months, $33$11 a month
Letterly Pro, US App Store
- 1 year, $69.99 to $99.99$5.83 to $8.33 a month
- 3 months, $44.90$14.97 a month
- 1 month$19.99 a month
What each one does
Two tools, different strengths.
What AudioPen does well
AudioPen turns the way you talk into the way you write.
- Your own voice, on the free plan: Paste in a few paragraphs you wrote as a style, and your notes come back sounding like you.
- Talk in one language, send in another: Think out loud in Portuguese and get the email in English.
- On-device transcription, if you want it: Turn on offline transcription in the iPhone, Android, Mac and Windows apps, and your audio stays on your device.
What Letterly does well
Letterly is a voice notes app built around its rewrite options.
- 25+ premade rewrite options: From Slightly and Magic to Email, List and Journal Entry, plus options you build yourself.
- Every version kept: The transcript stays as it is, and each rewrite is saved as its own version of the note.
- Meeting recaps: A recorded meeting comes back as a transcript split by speakers, plus a summary.
Voice typing, in any style
Talk into Gmail. Get the email in your style.
Halfway through a reply in Gmail and you'd rather just say it? Put your cursor in the box and talk. Slack and Google Docs work the same way.
Talk the way you think. Start mid-thought, circle back, change your mind halfway through. AudioPen types your exact words when you want them, or writes it up in a style you pick, right at your cursor.
“hey so um, about thursday, I can't make the 2pm anymore, something came up with the kids, could we do friday morning instead, like 10 or 11, and I'll send the deck before then so you can look at it”
Hi, I'm sorry, but I can no longer make our 2pm meeting on Thursday. Something came up with my kids. Could we meet on Friday morning instead, at 10 or 11? I'll send the deck before then so you have time to look it over. Best,
Works in any app, on every device: a hotkey on Mac and Windows, the AudioPen keyboard on iPhone and iPad, and a floating bubble on Android.
Feature by feature
Letterly vs AudioPen, side by side.
| Feature |  Letterly |  AudioPen |
|---|---|---|
| Best for | LetterlyVoice notes with a big library of rewrite options | AudioPenWriting in your own style, from the free plan up |
| Writing styles on the free plan | LetterlyThe Magic option, with 10 rewrites in total | AudioPenEvery built-in style, plus styles you make |
| Speak one language, write in another | LetterlyTranslate a note into another language | AudioPen |
| Offline | LetterlyRecords offline, transcribes once you're back online | AudioPenTranscribes on the device, if you turn that on |
| Integrations | LetterlyZapier, webhooks, Letterly MCP | AudioPenZapier, webhooks, Notion, Obsidian, AudioPen MCP |
| Platforms | LetterlyWeb, iPhone, iPad, Apple Watch, Android, Mac, Windows | AudioPenWeb, iPhone, iPad, Apple Watch, Android, Mac, Windows, Chrome extension |
New to AudioPen? See how the notes app works, how to make a writing style of your own, and what Prime includes.
Where AudioPen works
One account, every device.
Voice type into any app on Mac and Windows, use the AudioPen keyboard on iPhone and iPad, tap the floating bubble on Android, or open your notes in the web app.
- Web appAny browser
- MacVoice type in any app
- WindowsVoice type in any app
- iPhoneApp and voice keyboard
- iPadApp and voice keyboard
- Apple WatchRecord from your wrist
- AndroidApp and floating bubble
- ChromeBrowser extension
One Prime account covers all of them. Your notes sync across every device, so whatever you capture on one is waiting on the next.
This is by far the greatest and most useful tool I have ever had! I have severe ADHD and it’s able to translate my rambling into a well written and concise note. I feel more organized and less anxious!
I love it. Once AudioPen knows my style, everything I write sounds like me, but better.
I used to manually summarize my transcribed brainstorming sessions. Took hours. AudioPen automates everything to the point where I am almost done with my article after talking about a topic for 10min. Magic.
I use AudioPen mainly as a way of clearing my mind.
I am a natural speaker. My ideas flow faster when I speak. I record my voice notes and with my accent, it is perfect all the time.
Testimonials
Loved by people who think out loud
Read what real users have to say about AudioPen.
No product has fundamentally changed the way I work over the last 12 months more than Audiopen. Home Screen on iPhone.
I can now create 95% of my blog posts and have minimal editing. In my tone of voice. This saves so much time
I’ve been using AudioPen to talk through my ideas, have them summarized and then use the summarization as a draft for blog posts. 13 out of 10. Highly recommend for the “blank page” problem.
This is probably the best product I’ve come across in the past 18 months. So useful and it just keeps getting better.
Simple, but effective. The best tool to convert rambling into structured text, while keeping what you rambled intact.
I freakin love AudioPen.ai. If you are not using it yet, get on it.
Most helpful AI tool = audiopen. Been using it daily to do things like: turn voicenotes into action items, content ideas (magic for this), summarize calls, giving feedback. The UI is also so clean that it’s an absolute joy to use.
You speak to it as thoughts come in. It stitches a fine narrative from the rant. Writers can edit a ‘wrong’ page, not a ‘blank’ page. AudioPen gets you to 90% and then you do the rest.
OH MY GOSH. I just learned about AudioPen today, and it’s already a GAME CHANGER. If you write, create, or do any serious thinking, this tool is for you.
This is one tool that has dramatically changed the way I think. It has allowed me to get the thoughts out of my head and down on paper.
I can’t say enough good things about the AudioPen app. It’s been my go-to app for getting ideas down without having to type. Not only does it arrange even the most inarticulate nonsense into readable sentences, it’s the best dictation app I’ve ever used.
I’ve been writing online for over 10 years and tried virtually every writing app, productivity, note-taking, and idea-capture system out there. Nothing comes close to the amount of time AudioPen saves me.
Best buy in 2023: AudioPen from @louispereira. Hats off.
Switched from Superwhisper to Audiopen Mac App within 20 minutes of using the Mac App.
Tried it out, and paid for the prime version because it is SO good and simple to use. The product has made it so much easier to track my various thoughts throughout my day.
AudioPen is able to clear my spoken thoughts into text in Estonian, one of the most complicated languages in the world! Shut Up And Take My Money!
Already not sure what I did before I had AudioPen. If you often have thoughts you want to capture in writing, check it out. Cost is super reasonable too.