Estsoft

Market position

ESTsoft describes itself as moving from a global software specialist to an AI-based service company under a "Vision 2025" framing focused on pragmatism and immediately applicable, narrow-domain AI. Its ALTools suite is positioned as Korea's leading PC utility suite with 25 million cumulative users over 26+ years and more than 20 products, and its avatar business emphasises a large catalogue of Korean AI avatar models. Third-party listings characterise the company as a mature vendor in the data security category with more than 90% of Korean PC users said to use ALTools.

ESTsoft pairs a long-established consumer software distribution base in Korea with in-house avatar and speech deep-learning technology, offering avatars with cleared portrait rights and copyright, a specialised catalogue of Korean AI avatar models, dual-avatar interactive scenes, document- and PowerPoint-driven video creation, and on-device generation for kiosk and mobile deployments. Products span software, SDK and physical station form factors rather than a single cloud tool.

Technology

The company applies deep learning to generate AI avatars and digital humans, including AI clones of real people with cleared portrait and copyright status, natural gestures and facial expressions rendered on-device, vision-language understanding that reacts to speech and facial expressions in real time, and 4K video output. Dubbing and localisation rely on multilingual text-to-speech with 6,000+ voices, lip-sync generation, and a duration-based translation method that uses large language models to adjust phoneme counts for temporal alignment. Conversational products connect to third-party LLM APIs such as OpenAI GPT-3.5 and HyperCLOVA X, and the ALTools line embeds AI features including OCR, translation, summarisation, upscaling and background removal.

Go-to-market

ESTsoft combines direct enterprise and public-sector sales (contact-based inquiries, SDK integrations and kiosk deployments) with self-serve free trials and subscriptions for Perso Dubbing, Studio Perso and ALTools. It also uses partnerships and government programs for distribution, and exhibits at international trade events including CES 2026 with Samsung Electronics and Mobile World Congress in Barcelona, where Perso Interactive was shown across mobility, information, retail media, customer experience and developer ecosystem zones.

Enterprises, public institutions and education organisations, plus consumer PC and mobile users of the ALTools suite. Marketed use cases for the interactive avatar products span retail and live commerce, exhibitions and fairs, airports and transportation hubs, hotels and tourism sites, sports venues and festivals, and libraries and public agencies; dubbing and avatar video products target YouTube creators, podcasts, marketing, e-learning, HR and religious organisations.

Geography

Headquartered in Seoul, South Korea, with a stated worldwide service area. Products support multilingual delivery (110-country language coverage for interactive avatars, 32 languages for dubbing), and recent activity extends to Japan through a memorandum of understanding with NTT and Nihon Kotsu, to global FAST channel distribution on LG TV channels and Samsung TV Plus, and to international trade events in the United States and Spain.

History

Founded in 1993 in Seoul (incorporated 2 October 1993 per Wikipedia; 24 September 1993 per Grokipedia, which names founder Kim Jang-Joong and an original name of Emotional Science Technology), the company started with desktop and business software and an early free word processor distributed as shareware. ALZip launched in 1999, InternetDisk 1.0 in January 2000 and ALSee in August 2000, building the ALTools brand. ESTsoft listed on KOSDAQ in 2008 (ticker 047560), entered gaming with Cabal Online in Korea in 2005 through subsidiary ESTgames and a North American launch on 3 March 2008, later adding Cabal 2 and a Cabal Mobile beta in February 2019. Security products were spun off into ESTsecurity in January 2017. A strategic pivot to AI began in 2016 under CEO Chung Sang-won, culminating in the Perso AI product family launched in 2024 and the Alan AI search engine.

Risks & controversies

Financial and headcount figures vary across sources: Wikipedia reports 173 employees in 2024, Grokipedia around 234 employees and a market capitalisation of roughly $153 million as of late 2023, and a third-party vendor database estimates 251–500 employees and about $70.1 million in revenue. Founding date is also reported inconsistently (2 October 1993 versus 24 September 1993). The company's conversational products depend on third-party large language models and voice partners such as OpenAI, HyperCLOVA X and ElevenLabs, and several growth initiatives rely on Korean government programs and partner platforms. The English Wikipedia article on the company carries maintenance notices concerning promotional tone and notability.