Crafting Purposeful
Mobile & Digital Software
Shanghai Luyue Network Technology Co., Ltd. (上海律约网络科技有限公司) develops cross-platform mobile applications across language education, specialized industrial calculation, and zero-knowledge privacy tools under the Serease portfolio.
Engineered for Everyday Utility & Deep Learning
Explore our ecosystem of applications crafted with modern frameworks, rigorous mathematical validation, and respectful user data practices.
Built with Precision, Speed, and Privacy
We adhere to rigorous software engineering standards to deliver responsive, deterministic, and dependable digital products.
Cross-Platform Flutter Core
High frame-rate 60/120fps UI, native Android and iOS bindings, and consistent design aesthetics powered by modern declarative Flutter architectures.
Zero-Knowledge Security
Offline-first architectures, client-side AES-GCM and Argon2id encryption, and strict zero-logging data policies for sensitive user credentials.
Deterministic Engineering Engines
Dual-end verified thermodynamic algorithms and engineering formula validation ensuring industrial and educational apps yield exact, dependable outputs.
Interactive Audio & Pedagogy
High-fidelity neural acoustic models, authentic contextual dialogue flows, and micro-scenario learning mechanics for language learners worldwide.
Shanghai Luyue Network Technology Co., Ltd.
上海律约网络科技有限公司 · Serease App Studio
Shanghai Luyue Network Technology Co., Ltd. (上海律约网络科技有限公司) is an officially registered software enterprise operating the Serease digital product portfolio. We engineer, publish, and maintain cross-platform applications distributed globally through Google Play and modern web architectures.
Our engineering team builds products across specialized verticals — from interactive cultural and educational software (CharmLingo, SagaTalk, LoreTalk) to mission-critical engineering calculation tools (RefCharge) and local-first cryptographic utilities (ZeroPass).
Google Play Enterprise & Dun & Bradstreet (D-U-N-S®) Verification
- Verified Legal Entity: Shanghai Luyue Network Technology Co., Ltd. (上海律约网络科技有限公司) is verified under the Dun & Bradstreet D-U-N-S® registry, matching all corporate credentials submitted to the Google Play Console.
- Global Distribution Compliance: All published apps adhere strictly to Google Play Developer Program Policies, target API mandates, and international digital commerce requirements.
- Zero Data Exploitation: We uphold stringent user privacy. Our apps operate with offline-first or zero-knowledge models and fully comply with GDPR, CCPA, and Family Policy standards.
- Direct Support & SLA: Inquiries submitted to our developer inbox are monitored and answered within 24–48 hours.
Get in Touch with Our Team
Have questions regarding our Google Play apps, feedback on features, privacy inquiries, or developer partnerships? Reach out directly to our engineering support desk.