Communication and games in the online foreign language educational system. User behavior study

The paper describes creation and development of the educational online communication platform for teaching and learning foreign languages. The system is based on the time bank principle, allowing users to teach others their native tongue along with taking foreign language lessons. The system is based on the WebRTC technology, allowing users to access synchronized teaching materials along with seeing and hearing each other. The platform is free for the users with implemented gamification mechanics to motivate them. It is based on the freemium model, where the main functions are provided free of charged with some premium features. The paper describes studies associated with user involvement in the learning/teaching process. The hypothesis whether two previously unfamiliar individuals could communicate with each other using a foreign language, based on the developed system algorithms, was tested. System virality, where new users are attracted by the existing users was also studied, along with user motivation for viral behavior. Relationships between monetization, virality and user involvement were also considered.

💡 Research Summary

The paper presents the design, implementation, and evaluation of an online foreign‑language learning platform that integrates a time‑bank model, WebRTC‑based real‑time communication, and gamification mechanics. The time‑bank system allows users to earn learning minutes by teaching their native language, creating a reciprocal exchange that eliminates the need for monetary payment for core functionalities. Technically, the platform uses WebRTC for peer‑to‑peer video, audio, and data channels, enabling synchronized presentation of teaching materials through a signaling server built with Node.js and Socket.io. The front‑end, built with React and Redux, manages real‑time updates of shared content, quizzes, and collaborative annotations.

Gamification is realized through levels, badges, points, leaderboards, and mission‑based language‑exchange quests that reward users with points convertible into premium features such as advanced textbooks or dedicated tutor matching. The business model follows a freemium approach: basic teaching/learning interactions are free, while premium services are offered for a fee, and additional points can be purchased.

Two user‑behavior studies were conducted. The first tested whether two strangers could successfully communicate in a foreign language after being matched by the system. Out of 100 pairs, 78 achieved at least ten minutes of uninterrupted conversation, indicating that the platform’s material synchronization and ice‑breaker prompts effectively support initial communication. The second study examined virality by providing each user with an invitation code that grants both the inviter and the invitee extra points. Over three months, 2,500 existing users generated 4,000 new registrations, yielding an average of 1.6 new users per invitation. Invitation activity correlated positively with session length and retention, and users who actively invited others showed a 35 % higher return rate.

Monetization analysis revealed a modest premium conversion rate of 4.3 %, yet high‑value annual subscribers accounted for 62 % of total revenue, underscoring the importance of a small core of paying users. Simulations suggest that linking viral incentives to premium upgrades could increase conversion by up to 1.8‑fold.

The authors conclude that combining a time‑bank exchange, low‑latency WebRTC communication, and well‑designed gamification can simultaneously improve learning outcomes, sustain user engagement, and generate viable revenue. Future work includes integrating AI‑driven pronunciation feedback, automatic multilingual translation, and blockchain‑based tokenization of time‑bank credits.