Speak App for Korean: An Honest Comparison with Sudamate

Speak is a good app, and it will probably teach an absolute beginner more Korean in the first month than we will. It has an authored curriculum, a clear path through it, and the drilling that makes phrases automatic. If you're starting from zero, start there.

What it isn't built to be is the thing you reach for when you already know words and can't get them out of your mouth on a Tuesday night about a match that finished four hours ago. That's a different job.

Full disclosure: we make Sudamate, a Korean speaking app, so we think about where a curriculum ends and conversation begins all day. That makes us biased. It also means we looked at Speak properly instead of sneering at it.

What is the Speak app, and how does its Korean course work?

Speak is a voice-first language app built around what the company calls the Speak Method: Learn a phrase native speakers actually use, Practice it until it's automatic, then Apply it in back-and-forth conversation with an AI tutor. Around that sit situational roleplays, smart review, and custom lessons the app generates for you.

Its help center lists six languages for English speakers — Spanish, French, Japanese, Korean, Italian and Chinese — and English for speakers of fifteen native languages. That second half is the larger side of the business.

Founded in 2016 and launched in Seoul in 2019, Speak raised a $78M Series C at a $1B valuation in December 2024 with the OpenAI Startup Fund participating. The Korea Times reported in July 2026 that more than half of its 500-plus business partners are Korean. Speak is enormous, and much of that scale comes from teaching English to Koreans.

Is the Speak app good for an absolute beginner in Korean?

Yes, and we'd rather say so than pretend otherwise. The hardest problem for a true beginner isn't courage, it's blankness: you sit down to practice and have no idea what you're supposed to say. A sequenced curriculum solves that. Speak hands you the phrase, drills it, and then puts it in a scene where you know what's being asked of you.

That's real value, and it's the honest limit of what a free-form conversation partner can do on day one. Talking to Sudamate before you have any Korean at all is like being handed a microphone before you know the song. If you're at zero, spend a couple of months with something structured — Speak, a textbook, a class — and come back when you've got sentences to spend. We say the same thing about Duolingo for Korean: use the structured thing for structure.

How much does Speak cost in 2026?

On the US App Store in July 2026, Premium is $17.99 a month or $83.99 a year, and Premium Plus is $39.99 a month or $164.99 a year. A seven-day free trial gives full access to your plan, and Speak notes prices vary by region and promotion, so the in-app number is the real one.

As far as the plan pages show, both tiers include the curriculum, situational roleplay, the tutor and review. Premium Plus mainly buys you unlimited custom lessons — Premium caps them at three a day — plus a personalized study plan. One thing worth checking during the trial if pronunciation is your reason for subscribing: Speak's help center lists Pronunciation Coach as an English-learners feature, while its own signup page lists it as a Premium feature generally. We can't resolve that from outside, so test it before you pay for a year.

Where a curriculum runs out of road

A curriculum earns its value by being written in advance, sequenced and tested. That's the trade, not a flaw: what's written in advance can't have been written about the comeback that dropped on Friday, the LCK series that ended last night, or the meme your group chat has been quoting since Tuesday. Speak does generate custom lessons on request and has a tutor you can ask — we can't verify from outside whether either reaches the live web, so read this as a design difference, not a scoreboard.

The topics worth talking about usually have a clock on them. Nobody rehearses an opinion about a series that finished four hours ago — which is why we wrote about keeping up with Korean trends as a study method rather than a distraction.

So we built Sudamate to look things up while you're talking. Mention last night's match in passing and it searches, mid-call, and comes back with the actual result — in Korean. Same for a comeback date, a schedule, an idol update. It's also given today's date, your local time and your weather when the call starts, so it can ask about the rain instead of reciting a lesson title.

A reminder you can swipe away, or a phone that rings

Speak has streaks, leagues and learning reminders — the nudges its own materials describe — and for a lot of people those work. But a push notification is a piece of text competing with every other piece of text on your lock screen, and swiping it away costs nothing.

Sudamate rings. You pick a day and a time, and at that moment your phone gets a real incoming call — on iPhone it arrives on the system call screen with the ringtone and vibration, from Sudamate, and answering drops you straight into a three-minute Korean conversation. There's no lesson to choose and no app to open first. The free plan gives you one scheduled call a week; Plus lets you put one on every day of the week.

A ringing phone is answered or declined, not ignored — and three minutes is small enough that you take the call. If you want the longer argument, we wrote it up as a Korean study routine that survives a busy week.

Why Korean needs an app built only for Korean

Three things about Korean don't survive being generalized: which speech level you're in, which situations are worth rehearsing, and how the sounds are judged. Speak has to be good at six languages plus English. We only ever have to be good at one, so those three are where all our decisions go.

Speech level is the obvious one. Before every call you choose how your partner talks to you — 반말 (밥 먹어), 해요 (밥 먹어요) or 하세요 (식사하세요) — and the tutor is held to that level for the whole conversation. It also won't call you 씨 or 님; it uses your name, the way a friend would. Replies stay to one to three sentences, because a monologue turns a conversation back into a listening exercise.

Then there's what you practice. Our roleplays are Korean-culture-shaped rather than airport-shaped. The idol fansign is a real scenario: you pick your group, your partner is a current member of it, and you mark the page you want signed, spell the TO. name out letter by letter, and try to land a 주접 멘트 without freezing.

It runs in person or over a video call, the format a lot of international fans meet first. Fansign video call prep is a terrifying, deadline-driven reason to speak Korean, and no general curriculum is going to write a unit for it.

Esports gets the same treatment. The esports match roleplay puts you in an arena on finals night, the way an LCK match day actually goes: you're queueing at the wrong gate and have to sort it out, you trade a duplicate freebie with the fan beside you, you buy a cheering towel in your team's colors, and then an announcer pulls you aside for a pre-match interview and asks who you think takes it. Your team and your game come from your own profile, so it's your bias being interviewed about, not a generic one.

And because it listens to the audio rather than reading a transcript, pronunciation feedback comes from the sound itself, down to individual jamo. That distinction is not ours alone: Speak's own ML team published a good piece in May 2026 on how intent-based speech recognition normalizes learner errors — cleaning up exactly the mistakes you need to hear about. Everyone in this field fights that; we fight it on the waveform.

So should you use Speak or Sudamate?

Both, at different stages, for different reasons. Speak owns your first few months, when the problem is that you don't yet have sentences to spend. Sudamate owns the part after that, when you have words and no reps — which is also how we split the work with ChatGPT when we wrote about where it helps with Korean and where it leaves you stuck.

If you can't yet build a sentence, go get some sentences. Speak is a legitimately good way to do that, and we'd rather you came to us in three months able to talk than bounced off us tonight.

If you already have words you can't get out of your mouth — and that's most people who've studied Korean for a year — the missing piece isn't more curriculum. It's Sudamate: something that calls you, keeps up with your week, and lets you be clumsy in Korean about the things you actually care about. That's the whole plain explainer of what Sudamate is, and it's free to start on iPhone.