Case studies
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| +20 ReviewsStudyHall - Online platform for teachers and students
StudyHall is a web and mobile learning platform for structured study and exam preparation. It combines AI assistance, grammar practice, and teacher-led assessments to help students work with complex materials more efficiently. Our client got clear tools for educators to track progress and understanding in one system.
- React
- Node.js
SuperMe – HealthTech Web Platform
SuperMe Watch is a company that produces smartwatches for children, encouraging a healthy lifestyle by tracking activity and nutrition. Yojji created a gated online platform that can be accessed after payment using a unique code. It synchronizes the watch with calendars, tasks, food diaries, and progress indicators. Our client received a web platform that connects a physical gadget with a child-friendly website with simple tracking and motivation mechanisms.
- React
- Typescript
- CSS
- Node.js
- Gitlab CI/CD
Zuzzle – E-learning Platform
Zuzzle is an online learning tool for organized study of foreign languages and academic disciplines. The product helps students prepare for exams. They have tests, exercises, learning data, and planning tools all in one interface. The Yojji team created this e-learning platform as a scalable system that allows users to schedule daily study activities across desktop and mobile devices, track progress by subject, and examine performance trends.
- React
- Node.js
- Typescript
Healthcare Booking Platform
Our team designed and developed a custom healthcare booking platform where patients can search doctors, view real-time availability, and book appointments in a few clicks. It’s a unified system that connects multiple medical institutions, handles payments, and synchronizes bookings with each clinic’s CRM. In 7 months, our client got a fully functional web application.
STB Union — on a Mission to Make Finances Convenient for Everyone
STB Union, a major FinTech player, partnered with Yojji to evolve from a traditional currency exchange network into a modern financial marketplace. The project aimed to develop a secure, scalable platform for multi-currency wallets, international transfers, and digital card services, using React JS, React Native, and Java to enhance STB Union’s service offerings and strengthen its position in FinTech.
- React
- React Native
- Java
Worldwide Remittance SaaS Platform
Vala facilitates direct money transfers between businesses, reducing transaction costs and creating new revenue streams. Our team handled the UI design, revamped the application’s admin panel, and built a mobile version from scratch. Ultimately, we were given full autonomy over project design and development decisions.
- React
- React Native
- Java
Covid-19 Symptom Screening & Tracking for Schools
Symptomatical is a symptom management system developed to help companies and schools reopen safely and proactively manage COVID-19 risks. Our team enhanced the platform with analytics tools, an admin dashboard, a secure authorization system, a dedicated landing page, and Stripe API integration. This solution supports daily health screenings, enforces safety protocols, and ensures seamless operational continuity.
- React
- React Native
Social Platform for High-Net-Worth Members
Our Yojji experts built a social platform for a private network of 800+ executives, entrepreneurs, and investors who meet regularly to exchange experience and solve business challenges. The platform helps members connect, organize regional events, schedule meetings, and communicate in one secure space. It’s fully synced with Salesforce data. We completed the project in four months, 1.5× faster than the original six-month plan.
- React
- React Native
- Node.js
Smart Health – Platform for Healthcare Providers
We developed a web and mobile platform that enables hospitals and medical centers to conduct remote health consultations and structured COVID-19 risk surveys. The system allows organizations to assess individual risk levels, generate personalized prevention recommendations, and create customizable online questionnaires.
- React
- React Native
- Node.js
Cross countries payroll solution for SMB
Payroll is a $1.2b cloud-based solution that enables companies to manage global payroll, oversee payment cycles, and process direct transfers across countries. They approached us to build this system on their financial and legal infrastructure. Yojji led the frontend development and design and contributed to backend tasks. Within two months, users completed their first payroll transactions, and the platform continued to expand with new features.
- Angular
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