The top trends to keep an eye on at the time of e-commerce application development are: 1. Sustainability and Eco-friendly Practices 2. Enhanced Security Measures 3. Geofencing 4. Integration with Wearable Technology 5. Voice Assistants 6. Social Media Commerce 7. Artificial Intelligence (AI) Chatbots 8. One-Click Purchase 9. Augmented Reality (AR) and Virtual Reality (VR) Experience 10 Big Data