Fondo · Feb 2026
External launch write-up summarizing the product, founders, and the company’s conversational-learning thesis.
Public company, workplace, funding, and market signals
Updated Jul 29, 2026
ISSEN is a YC F24-backed consumer AI language-learning company building a real-time voice tutor that helps people practice speaking through personalized, conversation-based lessons.
Primary product
A multilingual real-time AI voice tutor for language learning and speaking practice
Founded
2024
Headquarters
New York, New York, United States
Team size
1-10
Industry
Technology, Information and Internet
Sub-industry
AI language learning / edtech
Offices
0 jobs at ISSEN
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Business model
Stage
Pre-Seed
Total raised
$500K
Latest round
Pre-Seed · Dec 2024
Latest amount
$500K
Jan 2024 · Y Combinator
Investors
Small, founder-led YC team focused on immersion-first language learning, rapid iteration, and personalized speaking practice over gamified drills.
Pricing
Freemium subscription; paid plans are listed at roughly $20–29/month depending on plan and country, with a free trial.
Differentiators
Technology
Customers
Competitors
Estimated revenue
Estimated annual revenue is about $220K ARR (low six figures), based on public revenue estimates.
Estimated monthly visits
68.5K
Traffic estimate as of Jul 2026
Fondo · Feb 2026
External launch write-up summarizing the product, founders, and the company’s conversational-learning thesis.
Hacker News · Jun 2025
Launch thread from the founders describing the custom voice AI pipeline, product features, and pricing; useful for technical and product claims.
NextBigWhat · Feb 2025
Short third-party article describing ISSEN as an AI realtime voice language app for personalized speaking practice.
LinkedIn · Nov 2024
Mariano Sorgente announces ISSEN’s YC F24 launch and frames the product as a realtime AI tutor for immersive language practice.
Y Combinator
Official launch post describing ISSEN as a personalized AI voice language tutor, with founders Mariano and Anton and the app’s core product positioning.