Email has become a crucial communication tool for businesses, with a noticeable increase in usage, prompting the integration of email functionalities like tracking into apps to maintain user engagement. Email tracking allows businesses to gain insights into email interactions, such as when emails are opened or links clicked, helping refine communication strategies and boost productivity. It offers features like real-time notifications, detailed analytics, link tracking, A/B testing, and multi-platform compatibility, enhancing email campaigns and follow-up effectiveness. Businesses can choose between ready-made email tracker solutions like Mailtrack, HubSpot Sales Hub, Yesware, and Mixmax, which offer varying levels of functionality and ease of use, or opt for customizable integration via email APIs like Nylas and SendGrid, which cater to specific needs but require more technical expertise. The choice between these options depends on the desired level of customization, cost considerations, and the specific communication needs of the business, ultimately aiming to enhance email management capabilities and user engagement within applications.