Lastly, our gross profit also saw significant growth this quarter, reaching a 23% increase year-over-year and a 9% increase quarter-over-quarter. This marks the highest gross profit we have seen in the past 16 quarters, showcasing the strength and sustainability of our business model. Our continued focus on operational efficiency and cost management has enabled us to achieve this impressive growth in profitability.
In terms of cash management, we also had a standout quarter with a net operating cash inflow of RMB 35.1 million, the highest we have seen since Q4 of 2020. This strong cash flow position provides us with the financial flexibility to continue investing in our growth initiatives and pursuing new opportunities in the market.
Looking ahead to 2026, we are confident in our ability to continue on our growth trajectory and seize the opportunities that lie ahead. Our solid foundation and track record of success position us well for future growth and expansion. We are excited about the potential for further acceleration in our business and are committed to delivering value for our customers, employees, and shareholders.
In conclusion, I want to thank our dedicated team at Aurora Mobile for their hard work and commitment to our success. It is their passion and dedication that have enabled us to achieve such remarkable results in 2025. I also want to thank our customers and partners for their continued support and trust in our products and services. We look forward to continuing to work together to drive innovation and growth in the mobile industry.
Thank you for joining us on this earnings call, and we look forward to updating you on our progress in the coming quarters. Together, we will continue to build a brighter future for Aurora Mobile and all of our stakeholders. Looking back at the success of our global flash product in 2025, we are thrilled at the progress we have made since the launch of EngageLab in Q4 of 2022. EngageLab offers a range of products and services for omnichannel infrastructure, enabling our customers to enhance engagement with their users in a seamless and efficient manner. Our customer base spans across various industry verticals, with no specific concentration risk in any one industry.
The outstanding numbers we achieved in 2025 have instilled great confidence in the continued growth and profitability of this business. Looking ahead to 2026, we are already seeing promising signs from overseas markets in terms of potential needs and customers. Our global partners play a crucial role in driving our long-term growth and sustainability. As of December 2025, we have 17 partners in different countries and regions within the EngageLab ecosystem. These partners are carefully selected through a rigorous process, and we have high expectations for their contribution to our expansion in overseas markets.
Subscription revenue saw significant growth in the last quarter, with wins from notable clients such as Kimi, J&T Express, Citibank, and China Unicom. Value-Added Services revenue also saw a substantial increase, up 101% quarter-over-quarter. The quarterly online shopping festival in Q4 further contributed to revenue growth, reflecting the strong performance of our offerings.
In terms of vertical applications, financial risk management recorded a robust 43% growth in revenue year-over-year, driven by an increase in customer numbers and average revenue per user. Market Intelligence revenue, however, saw a decline due to weak market demand for Chinese APP data, in line with our expectations.
Our gross profit for the quarter was the highest recorded in the past 16 quarters, growing by 23% year-over-year. This strong performance has led us to achieve our first ever full year GAAP net profit in 2025. Operating expenses increased in line with revenue growth, with R&D and selling/marketing expenses contributing to the rise.
Key performance indicators such as net dollar retention rate, total deferred revenue, and accounts receivable turnover days all point towards a healthy and sustainable business model. Our NDR rate exceeded 100% for the second consecutive quarter, demonstrating strong customer loyalty and increasing spending on our platform. The total deferred revenue reached a historical high, indicating predictable future revenues and effective sales strategies. Additionally, our accounts receivable turnover days at 37 days showcase efficient cash collection and improved financial liquidity.
Overall, the success of our global flash product in 2025 and the positive outlook for 2026 reflect the hard work and dedication of our team, as well as the strong partnerships we have established worldwide. We are excited for the continued growth and expansion of EngageLab in the years to come. We had to rely on the dedication and hard work of every single employee in the company to make this vision a reality. From the product development team to the sales and marketing team, everyone had to step up and give their best to ensure that our products and services were tailored to meet the needs of our global customers. It was a team effort that required everyone to go above and beyond their usual duties, and the results speak for themselves.
In addition to these three key factors, I would also like to highlight the importance of our customer engagement strategy. We made a conscious effort to listen to our customers, understand their needs, and tailor our products and services to meet those needs. This proactive approach to customer engagement has helped us build strong relationships with our clients, leading to increased customer satisfaction and loyalty.
Overall, I believe that it was our team’s diligence, hard work, and timely effort to engage with customers that have led to our success this quarter. Our record-breaking cash flow numbers, our first full year GAAP net profit, and our strong revenue growth all reflect the dedication and commitment of every member of the Aurora Mobile team. As we look ahead to 2026, we are confident that we are well-positioned to continue this momentum and achieve even greater success in the coming year. EngageLab has come a long way since its inception, with the founders reminiscing about their early days standing at a booth in Singapore Tech Expo, trying to introduce their product to potential customers. They made the bold decision to venture overseas, which proved to be the right move in the long run. The commitment to investing in the right product offering paid off, as EngageLab has seen significant growth over the years.
The entire organization was aligned and in sync with the strategic initiative, which enabled them to achieve their goals and surpass internal targets. The hard work and dedication put into building EngageLab have resulted in impressive financial results, including the company’s first full year GAAP net profit.
Looking ahead to the first quarter of 2026 and beyond, Aurora Mobile is poised for continued success. The domestic business has shown stable growth, while the global flagship product, EngageLab, is expected to drive the majority of growth in the coming years. Additionally, the company’s AI strategy will provide further momentum for growth.
Management is confident in Aurora Mobile’s business prospects and is optimistic about the future. The solid foundation that has been laid over the past few years sets the stage for continued success and growth. Investors are encouraged to consider the potential of Aurora Mobile as a strong contender in the market.
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