ESTsoft

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ESTsoft

Company type	Private
Industry	Software development, Video game development
Founded	October 2, 1993; 32 years ago (1993-10-02)
Headquarters	Banpo-daero 3, Seocho-gu, Seoul, South Korea
Area served	Worldwide
Key people	Sangwon Chung (CEO)
Products	Perso AI,ALZip, Cabal Online, and 14 more
Number of employees	173 (2024)[1]
Website	www.estsoft.ai

Founded in 1993, ESTsoft is a South Korean application software development company. Its software ranges from desktop to business software for enterprises.^[2] ESTsoft listed on the KOSDAQ market in 2008 (ticker: 047560). The company develops and provides software and artificial intelligence (AI)-based services, including AI dubbing, virtual avatars, and AI search, mainly in a Software-as-a-Service (SaaS) format.

ESTsoft was founded in 1993 in Seoul, South Korea, as a developer of desktop and business software.^[3]

During the 2000s, the company released a series of software products under the "ALTools" brand, including ALZip and ALSee, which became widely used among Korean PC users.

ESTsoft was listed on the KOSDAQ market in 2008 (ticker: 047560).^[4]

In the 2010s, the company expanded into the online gaming industry with titles such as Cabal Online and Cabal 2.^[5]

Since the early 2020s, ESTsoft has shifted its strategic focus toward artificial intelligence (AI) technologies, launching services such as the AI dubbing platform "Perso AI," virtual avatar solutions, and the AI search engine "Alan."^[6]

In 2025, the company was selected for the Korean government's K-FAST initiative, which supports AI dubbing technology to globalize K-content.^[7]

In December 2025, ESTsoft announced the launch of K-content FAST (free ad-supported streaming TV) channels for the global market, utilizing its AI dubbing technology on LG TV channels. The service includes channels such as "TRAVEL ON" and "GAME ON," with "FOOD ON" and a romantic comedy drama channel, "Series K," scheduled for launch on Samsung TV Plus in January 2026.^[8]

In January 2026, ESTsoft collaborated with Samsung Electronics to unveil the "AI Promoter" at CES 2026 during Samsung's "The First Look" event. "AI Promoter" integrates on-device AI and object recognition technologies to provide detailed information on Samsung's flagship products.^[9]

In February 2026, ESTsoft signed a MOU with NTT (Japan's largest telecommunications company) and Nihon Kotsu, a major Japanese taxi operator, to introduce its real-time conversational AI Avatar service, "Perso Interactive," into Japanese taxis. The partnership aims to provide foreign tourists with AI-powered services such as real-time interpretation, tourism information, and restaurant recommendations.^[10]

In March 2026, ESTsoft participated in the Mobile World Congress (MWC) in Barcelona to exhibit its real-time conversational AI Avatar service, "Perso Interactive." Advancing from its initial launch, the company demonstrated the technology's practical applications across the mobility, retail, and telecommunications sectors. Visitors to the ESTsoft booth experienced the versatility of "Perso Interactive" across five dedicated zones (Mobility, Information, Retail Media, Customer Experience, Developer Ecosystem).^[11]

In August 2025, ESTsoft was selected as a national representative elite team for the "AI Foundation Model" project led by the Ministry of Science and ICT of the Republic of Korea.^[12]

In January 2026, ESTsoft successfully advanced to the second stage of the South Korean government's "Independent AI Foundation Model Project" as a member of the consortium led by LG AI Research. This consortium, which is developing the sovereign AI model K-EXAONE, secured the first-place ranking in the initial phase of evaluation.^[13]

ESTsoft provides AI-based Software-as-a-Service (SaaS) solutions under its AI brand.^[14]

Perso AI is ESTsoft's AI-powered content platform launched in 2024, comprising three services: Perso AI Dubbing (multilingual video dubbing), Studio Perso (virtual Avatar video creation), and AI Live Chat (interactive avatar service for real-time conversation).^[15]

Perso AI Dubbing is a SaaS platform providing AI-based video dubbing and multilingual translation.^[16] In 2025, ESTsoft partnered with ElevenLabs to work on the platform.^[16]

Studio Perso is a virtual Avatar video creation service that enables users to generate AI avatar-based video content without a camera or recording equipment. The service allows for the creation of digital presenters for use in marketing, education, and corporate communications.^[17]

AI Live Chat is an interactive avatar service designed for real-time conversational interactions. Based on the same avatar technology used in Studio Perso, AI Live Chat enables businesses to deploy conversational AI representatives on websites and digital platforms.^[17]

Alan is an AI-powered search engine and generative assistant developed by ESTsoft.^[18][19]

There are several products marketed under the "ALTools" product line. In Korea, "Al" means "egg", and numerous products under this category have egg-themed icons and mascots. ALTools products include:

• ALZip – a compression and archiving utility, supporting several archiving formats, including ISO
• ALFTP – an FTP client and server
• ALSee – an image viewer and photo editor
• ALPass – a password manager for web sites (update service ended)
• ALGIF – a GIF animation program (update ended)
• ALSong – an MP3 player which supports online content
• ALShow – a media player
• ALMap – a family of digital map viewers and GPS (both software and hardware) (update ended)
• ALX – digital rights management software
• ALToolbar – a toolbar for Internet Explorer
• ALYac – an antivirus based on BitDefender engine

Other ESTsoft products include:

• InternetDISK – online storage solution
• iDisk – A version of InternetDISK designed for ISPs to host larger amounts of data
• iMan – instant messaging software
• Cabal Online – a massively multiplayer online role-playing game
• Cabal 2 – a massively multiplayer online role-playing game
• HeroesGo (also known as Howling Sword) – a massively multiplayer online role-playing game

• ESTsoft Official Website
• Perso AI – AI Dubbing & Video Translation
• Alan – AI Search Engine
• ALTools
• ESTsoft site (archived)

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