What Wrtn Technologies does

Wrtn Technologies (뤼튼테크놀로지스) is a Seoul-headquartered AI platform company founded in April 2021 that operates a multi-product portfolio spanning B2C consumer AI services and B2B enterprise AI transformation. Its consumer products include Wrtn (a multi-model AI assistant combining GPT, Gemini, and Claude, reaching 5M MAU in Korea), Crack (an AI character interactive storytelling service with choice-driven narratives and Party Chat multiplayer, the company's primary revenue driver with claimed 300B KRW ARR), and Kyarapu (Japan-market AI character chat with 19,000+ characters at 1B yen ARR). The underlying technology combines third-party foundation models with proprietary Agentic AI, RAG architectures, workflow engines, and generative image synthesis; the company does not disclose proprietary foundation model training but has built an application layer including internal productivity agents (Wrtn Reuber), an agent development foundation (Wrtn Labs), and ontology-based enterprise automation (Finance Ontology).

The business model blends freemium B2C subscriptions and in-app purchases (Crack, Kyarapu, Wrtn) with B2B enterprise AI transformation services via Wrtn AX CIC, plus AI literacy distribution through Wrtn Edu (1,002 partner organizations, 68,458 learners). Go-to-market combines product-led growth for consumer services with direct field sales for enterprise/government clients and partnership-led distribution through AbleLearn, Inflearn, LG AI Research, and LG Uplus. Geographic presence spans Korea (HQ), Japan (Tokyo subsidiary), and planned US entry via OOC/Crack Global by mid-2026. The company reported 47.1B KRW (~$31.83M) in 2025 revenue (15x YoY growth) against a 58.8B KRW operating loss, has raised approximately KRW 130 billion (~$88M) in total capital across four funding rounds, and targets $100M+ ARR in 2026 with a 2028 IPO.

Name

Wrtn Technologies

Legal name

(주)뤼튼테크놀로지스

Website

https://wrtn.io

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

101–250 employees

Short description

Wrtn Technologies operates a multi-model AI platform combining GPT, Gemini, and Claude for consumer entertainment (Crack, Kyarapu) and enterprise AI transformation (Wrtn AX), serving 5M MAU across Korea and Japan with US expansion planned.

Ownership category

akta.pro rank

Product category

Generative AI Software Platform

NAICS

Computer Systems Design and Related Services (5415), Custom Computer Programming Services (541511), Software Publishers (5132)

SIC

Services-Computer Integrated Systems Design (7373), Services-Computer Programming Services (7371)

akta.pro primary industry

Conversational AI Platforms (chat/voice bots, orchestration) (HDAAAFAC)

Keywords

• AI chatbot platform
• AI character entertainment
• Enterprise AI transformation
• AI literacy education
• Interactive AI storytelling

Headquarters

HQ city

Seocho

HQ country

South Korea

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Software

Cost components

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

Revenue model

1. B2C AI Entertainment (Crack & Kyarapu): Crack (Korea) and Kyarapu (Japan) generate revenue through in-app purchases and subscriptions for AI character chat and interactive storytelling experiences. Crack reached 300 billion KRW ARR; Kyarapu reached 1 billion yen ARR. 15-fold revenue growth from 2024 to 2025. OOC (North America) targeting US market expansion.
2. B2C AI Assistant (Wrtn): Wrtn AI chatbot platform for Korean consumers with freemium model; premium features for paying subscribers. Wrtn is the company's original general-purpose AI assistant service.
3. Wrtn AX Enterprise AI Transformation: B2B AI transformation consulting and agent deployment for enterprises and government agencies. Wrtn AX CIC executes enterprise AX projects including Finance Ontology for automating corporate finance workflows. Revenue diversification stream alongside B2C growth.
4. Wrtn Edu (AI Literacy Programs): AI education programs for companies, institutions, and schools. Partners with AbleLearn and Inflearn to distribute free education vouchers (200,000 KRW per beneficiary, targeting 1,000+ beneficiaries).

Pricing tiers

Go-to-market motion3 records

Distribution channels6 records

Marketing channels6 records

Core offering

Wrtn Technologies builds and operates a multi-model generative AI platform serving both consumers and enterprises. Its B2C products include Wrtn (general-purpose AI chatbot with 5M MAU), Crack (AI character interactive storytelling with Party Chat), and Kyarapu (Japan-market AI character chat). Its B2B offerings include Wrtn AX (enterprise AI transformation with Human-Like Agents for finance and operations), Wrtn Labs (open-source agent foundation), and Wrtn Edu (AI literacy education programs).

Product overview

Wrtn Technologies operates a multi-product AI platform architecture spanning B2C consumer services and B2B enterprise solutions. B2C services include: Wrtn (core AI assistant with GPT/Gemini/Claude integration, reaching 5M MAU), Crack (interactive AI storytelling with multi-player Party Chat, $70M+ revenue), and Kyarapu (Japan market visual novel/character chat, 1B JPY ARR). B2B offerings include Wrtn AX (enterprise AI transformation with Human-Like Agents), Wrtn Labs (agent development foundation), and Wrtn Edu (AI literacy education). The company also operates OOC for North American market expansion.

Differentiator

Problem solved

Functional benefit

Brands

• Wrtn: Korea's leading AI service platform offering AI supporter, AI speaking, AI meme, and AI fortune telling features.
• Crack
• Kyarapu
• Wrtn AX
• Wrtn Labs
• Wrtn Edu
• OOC

Products and services

• Wrtn Korea's leading consumer AI assistant service combining GPT, Gemini, and Claude models. Includes AI Supporter for general conversations, Wrtn Speaking (AI language tutor with phone call review), AI Meme generator, and AI Fortune Telling. Reached 5 million MAU as Korea's representative AI companion service.
• Crack Interactive AI storytelling platform featuring choice-driven narratives, multi-genre AI characters (dating, RPG, martial arts, fantasy), AI-generated images, and Party Chat multiplayer mode for up to 5 users. Monetized via in-app purchases and subscriptions, reaching 300B KRW ARR.
• Kyarapu Japan-market AI character chat and visual novel platform with over 19,000 characters across romance, fantasy, SF, and comedy genres. Offers chat-driven storytelling with rich text and visual scene generation beyond traditional web novels. Achieved 1 billion JPY ARR.
• Wrtn AX Enterprise AI transformation solution delivering customized AI solutions for productivity innovation for businesses and government agencies. Provides Human-Like Agent development powered by ontology-based automation, including the Finance Ontology platform for credit card review, tax invoice 3-way matching, journal entry automation, VAT/corporate tax filing, and audit documentation generation.
• Wrtn Labs Foundation platform for business agent development, providing AI agent development infrastructure and open-source resources. Used by enterprise teams and Wrtn's own agent development teams for building custom AI agents.
• Wrtn Edu AI literacy education program offering basic, application, and advanced AI courses for companies, institutions, and schools. Includes self-developed curriculum covering generative AI basics, prompting, AI ethics, and Agentic AI implementation (MCP, n8n), plus a competency/aptitude certification system. Delivered through partnerships with AbleLearn, Inflearn, 70+ schools, 20+ institutions, and 100+ companies, reaching 4,200+ students and 68,458 total learners.
• OOC North America-focused AI character chat service with open-ended conversational AI characters. Positioned for US launch by mid-2026 with community management, Reddit Ads, and brand marketing operations targeting subculture and otaku demographics.

Quantifiable outcome

• 15-fold revenue growth from 3B KRW (2024) to 47.1B KRW (2025)
• +4 more outcomes

Named customers5 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability8 records

Feature6 records

Partnerships

Six partnerships are on record, tiered minor and core.

• Generative AI Startup AssociationminorStrategic or Co-development Partner · 20 January 2026Wrtn Technologies is a member of the Generative AI Startup Association, which organized the Korea-Japan AI Startup Meetup Day in Tokyo alongside KOSME and ZVC. Wrtn announced plans to grow its AX business through its Japanese subsidiary at this event.
• National Assembly / GovernmentcoreStrategic or Co-development Partner · 11 November 2025Wrtn CEO Lee Se-young presented at the K-AI Literacy Future Education Forum hosted by Rep. Cho In-cheol at the National Assembly. Wrtn is positioned as a key private-sector partner in the government's national AI literacy and transformation initiatives.
• AbleLearncoreStrategic or Co-development Partner · 6 November 2025AbleLearn, an AI literacy education specialist company, partnered with Wrtn to develop and distribute free AI education vouchers (200,000 KRW per beneficiary). AbleLearn contributes AI education curriculum expertise and distribution渠道.
• InflearnminorChannel Partner/ Reseller/ Distributor · 6 November 2025Inflearn, an online education platform, partners with Wrtn to distribute AI education content. Inflearn's platform serves as a distribution channel for Wrtn's AI literacy curriculum and voucher programs.
• LG AI ResearchcoreStrategic or Co-development Partner · 19 August 2025Wrtn partnered with LG AI Research in August 2025 to boost AI literacy. The partnership aims to realize the 'AI for All' vision, combining Wrtn's AI education capabilities with LG AI Research's AI expertise. Wrtn signed a MOU with LG AI Research alongside FuriosaAI for AI model and infrastructure collaboration.
• LG UpluscoreStrategic or Co-development Partner · 29 May 2025LG Uplus partnered with WRTN to enhance AI service offerings, combining LG Uplus's telecom and digital services ecosystem with Wrtn's AI platform technology.

Scale indicators14 records

Recent moves9 records

Expansion highlights7 records

Market position

Strengths4 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• GitHubgithub.com/wrtnlabs
• Facebookfacebook.com/wrtn.io
• LinkedInlinkedin.com/company/home
• Instagraminstagram.com/wrtn.io

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds8 records

Investors19 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 Wrtn Technologies