Ringle

What Ringle does

Ringle is a South Korea-based online English learning platform founded in 2015 that connects working professionals with native-speaker tutors recruited from top-tier universities (Ivy League, Stanford, MIT, etc.) for 1:1 video lessons. The company operates primarily in Korea with a regional office in San Mateo, California, and has built a network of approximately 1,500 verified tutors maintained through a 12:1 acceptance rate and a 5-step screening process. As of the latest disclosed data, Ringle serves 200,000+ valid members on the consumer side and 200+ corporate clients (including Hanwha Ocean, Shinhan Financial Group, and Samyang DX) on the enterprise side, with cumulative 1:1 lesson volume exceeding 2.1 million.

Ringle's product surface spans a core 1:1 video English lesson featuring real-time sentence-level correction and post-lesson AI analysis, supplemented by Ringle AI Speaking (roleplay across 150+ business scenarios, AI phone calls, AI discussion), Ringle AI Speaking Test (a 40-minute standardized proficiency assessment for corporate recruitment and promotion), Ringle AI Prep, and a Ringle Teens sub-brand for teenage learners. Underlying AI capabilities — including pronunciation recognition co-developed with KAIST KIXLAB and a CAFP-based speaking assessment validated by joint research with Ewha Womans University — represent the core technical differentiator, supported by three filed patent applications and a proprietary 1,100+ item curriculum library updated weekly. The 40% reported reduction in Korean English pronunciation recognition error rate provides a concrete technical edge versus competitors.

Ringle operates a hybrid B2C/B2B revenue model: direct-to-consumer subscriptions and credit packs for individuals (first trial class priced at 4,000 KRW), combined with B2B corporate English training sold through a dedicated enterprise sales team on multi-year custom contracts. Pricing on the AI Speaking membership is subscription-based (monthly/annual), while corporate programs are priced per company with features including attendance dashboards and satisfaction surveys. Ringle has been the No. 1 ranked brand in Korea Consumer Evaluation Best Brand for the Video English category for six consecutive years (2020-2025), and reported a 70% B2B repurchase rate and 94% very-satisfied rating among corporate learners. The company raised $18 million in Series A funding led by Must Asset Management in June 2021 at a ~$90 million post-money valuation, and operates with a lean team of 11-50 employees augmented by remote workers across the US, Australia, and Korea.

Name

Ringle

Legal name

(주)링글잉글리시에듀케이션서비스 (Ringle English Education Service Co., Ltd.)

Website

https://ringleplus.com

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

11–50 employees

Short description

Ringle is a South Korea-headquartered online English learning platform founded in 2015 that connects working professionals with native-speaker tutors from top universities via 1:1 video lessons and AI-powered speaking practice tools, serving both individual consumers and corporate enterprise clients.

Ownership category

akta.pro rank

Product category

Online English Learning

NAICS

Educational Support Services (61171), Exam Preparation and Tutoring (611691)

SIC

Services-Educational Services (8200)

akta.pro primary industry

Online Tutoring, Conversation Exchange & Language Coaching Platforms (EDAFAOAB)

akta.pro secondary industries

Integrated Tutoring + Learning Content Platforms (Curriculum + Tutors) (EDANAGAL), Online Language Learning Platforms (Self-Paced) (EDAMAFAC), Digital Language Learning Content (Apps, Online Courses, Mobile-first) (EDAGAHAM), Microlearning & Mobile Learning Content (EDAGAEAD)

Keywords

• Online english tutoring
• Ai speaking practice
• Corporate english training
• Business english education
• Language learning platform

Headquarters

HQ city

Seocho

HQ country

South Korea

HQ region

Asia

Offices5 records

Markets served

GTM type

B2B and B2C

Offering type

Software

Cost components

Personnel, Technology or R&D, Marketing or Sales, Operations

Revenue model

1. 1:1 Video English Lessons: Credit-based system where users purchase lesson credits (classes) at 4,000 KRW per 20-minute class for first trial, with various package options. Users select tutors, schedule classes, and pay per session.
2. AI Speaking Membership: Subscription-based unlimited AI English practice app with features including AI learning, roleplay, discussion, and phone calls. Monthly/annual billing with first 7-day full refund policy.
3. Corporate English Solutions: B2B enterprise packages including 1:1 lessons, AI platforms, and speaking tests with custom pricing based on company size and program requirements. Includes pilot programs and dedicated management.
4. AI Speaking Test for Recruitment: Corporate AI-powered English assessment service for hiring and promotion evaluation, offering standardized tests with custom questions for industry-specific needs.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

Ringle operates an online English learning platform that delivers 1:1 live video lessons with verified native-speaker tutors recruited from top US/UK universities, paired with AI-powered speaking practice, pronunciation analysis, and roleplay tools. The offering spans consumer credit-based lesson packages, a subscription AI Speaking app, an AI-based standardized speaking test, and customized enterprise English training programs with attendance management and ROI reporting for corporate clients.

Product overview

Ringle is an online English learning platform offering a multi-product ecosystem. The core offering is Ringle 1:1 화상영어 (1:1 Video English) featuring live lessons with Ivy League native speaker tutors. This is supplemented by Ringle AI 스피킹 for unlimited AI-powered speaking practice, Ringle AI 스피킹 테스트 for enterprise assessment, and Ringle 기업 영어 솔루션 for corporate training. A sub-brand Ringle 틴즈 serves teenage learners. All products integrate with a proprietary 5-step learning system (예약, 예습, 수업, 분석, 복습) developed by KAIST and Stanford alumni, with verified AI analysis technology co-developed with Ewha Womans University and KAIST researchers.

Differentiator

Problem solved

Functional benefit

Brands

• Ringle 1:1 (링글 1:1 화상영어): 1:1 video English lessons with native speakers from top universities
• Ringle AI Speaking (링글 AI 스피킹)
• Ringle AI Speaking Test (링글 AI 스피킹 테스트)
• Ringle Teens (링글 틴즈)
• Ringle B2B / Corporate English Solution (링글 기업 영어)

Products and services

• Ringle 1:1 Video English (Ringle 1:1 화상영어) Live 20- to 40-minute 1:1 video English lessons with verified native-speaker tutors from top US/UK universities, featuring real-time sentence-level correction on a shared screen, session recording, AI-driven post-lesson analysis, and curriculum spanning business English, interview prep, essay correction, exam prep, and daily conversation. Designed for Korean working professionals and corporate employees seeking practical speaking improvement.
• Ringle AI Speaking (Ringle AI 스피킹) Subscription-based AI English speaking practice app offering unlimited AI roleplay across 150+ business scenarios with selectable accents (British, Indian, etc.) and difficulty levels, AI discussion, AI phone calls at scheduled times for spaced-review reinforcement, and AI pronunciation analysis. Includes 1,000+ native business expressions and 1,300+ learning materials; designed for working professionals seeking practice between live lessons.
• Ringle AI Speaking Test (Ringle AI 스피킹 테스트) AI-powered standardized English speaking test that assesses practical proficiency in 40 minutes using the CAFP framework (Complexity, Fluency, Accuracy, Appropriateness), with industry-specific custom questions and validated 0.7+ correlation with TOEFL/TOEIC speaking scores. Targeted at HR and talent assessment teams for hiring, promotion evaluation, and benchmarking.
• Ringle Enterprise English Solution (Ringle 기업 영어 솔루션) Comprehensive B2B corporate English training solution combining 1:1 lessons, the AI Speaking platform, and AI Speaking Tests, with attendance management dashboards, learning-motivation nudges, satisfaction surveys, pilot programs, and custom curriculum by department or industry. Sold to 200+ Korean corporate clients via dedicated corporate sales motion with multi-year contracts.
• Ringle Teens (Ringle 틴즈) English learning service tailored for Korean teenagers aged 13–18, particularly students at international schools or those preparing for overseas education, covering speaking, writing, and reading skills for English top-performer students and overseas prep. Served via a dedicated customer support center and a separate ringleteens.com domain.
• Ringle AI Prep (Ringle AI 프렙) AI-powered English test preparation tool focused on exam-style practice (OPIC, TOEFL, IELTS, TOEIC, etc.) operating as a separate product workspace at prep.ringleplus.com, integrated with the broader Ringle platform.

Quantifiable outcome

• English speaking improvement from OPIC IM (5.5) to IH (6) after 6 months of weekly 1:1 lessons for global business staff
• +4 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration7 records

AI capability9 records

Feature5 records

Partnerships

Three partnerships are on record, tiered core and minor.

• KAIST KIXLAB (김주호 교수)coreStrategic or Co-development PartnerJoint research collaboration with KAIST KIXLAB (Professor Kim Juho) to develop AI pronunciation recognition technology. The partnership resulted in improved ASR (Automatic Speech Recognition) technology that reduces Korean English pronunciation recognition error rate by 40% compared to baseline.
• Ewha Womans University - Professor Lim Dong-suncoreStrategic or Co-development PartnerJoint research with Professor Lim Dong-sun's research lab at Ewha Womans University to validate AI speaking assessment technology. Research confirmed correlation coefficient of 0.7+ between Ringle's AI analysis and standardized TOEFL and TOEIC speaking scores.
• Export Voucher Program (Government SME Support)minorOthersParticipates in Korean government export voucher program that subsidizes English training costs for small and medium enterprises, making corporate training programs more accessible to SME clients.

Scale indicators11 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• iTalki: Online language learning marketplace connecting learners with native speaker tutors for 1:1 lessons, directly comparable to Ringle's marketplace-based 1:1 tutoring model.
• Speak: Korean-founded AI-powered English speaking app that targets the same working-professional segment with AI-driven speaking practice, directly competing with Ringle AI Speaking in the Korean market.
• Preply: Global online language tutoring marketplace with a strong tutor base and AI-powered learning features, competing with Ringle for English learners seeking 1:1 lessons with native speakers.
• Engoo: Korea-headquartered online 1:1 English tutoring platform offering affordable lessons with native speakers, competing head-to-head with Ringle's core 1:1 product in the Korean consumer market.
• Camba (Cambly Korea): Global 1:1 English tutoring marketplace that operates heavily in Korea, offering on-demand lessons with native speakers, directly comparable to Ringle's 1:1 tutor marketplace model.

Emerging players

• Elsa Speak: AI-powered English pronunciation and speaking app that overlaps with Ringle AI Speaking's pronunciation analysis feature, providing direct competition in AI-driven speaking practice.

Broad incumbents

• Duolingo: Global leader in language learning apps with AI-driven speaking practice and a freemium model, representing a broader incumbent that competes for English learners in Korea and globally.
• EF English Live (EF Education First): Global incumbent in English education offering live online group and private lessons, comparable to Ringle's B2B and 1:1 offerings as an established player in corporate and consumer English training.
• Varsity Tutors: Established US-based online tutoring platform offering 1:1 lessons including English, with corporate and consumer offerings that overlap with Ringle's B2B and high-end consumer segments.

Regional players

• Hancome: Korean online English tutoring platform connecting Korean learners with native speakers, a domestic regional peer competing with Ringle in the same Korean consumer segment.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@ringleofficial
• Facebookfacebook.com/ringleedu
• Instagraminstagram.com/ringleedu

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds4 records

Investors6 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Ringle