1. Key Difference 1: Integration Capabilities Intercom offers seamless integration with various platforms, including CRM systems, email marketing tools, and help desk software, allowing businesses to consolidate their customer data and streamline their communication processes. On the other hand, Marketo provides robust integration capabilities with popular marketing automation platforms, ensuring that marketers can automate their lead management and nurture campaigns effectively.

2. Key Difference 2: Target Audience Intercom primarily targets customer support and sales teams, providing tools to enhance customer communication and engagement. It focuses on facilitating conversational marketing and resolving customers' issues in a personalized manner. In contrast, Marketo caters more to marketing professionals, focusing on lead generation, nurturing, and marketing automation. It offers sophisticated features for creating and executing complex marketing campaigns, such as lead scoring and advanced analytics.

3. Key Difference 3: Pricing Model Intercom follows a subscription-based pricing model, where the cost varies depending on the number of users and the features required. It offers different plans tailored to different user requirements, making it flexible for businesses of all sizes. Meanwhile, Marketo employs a more elaborate pricing structure, primarily based on the number of contacts or leads a business processes. Additionally, Marketo offers tiered pricing based on the level of functionality and support required.

4. Key Difference 4: User Interface and Ease of Use Intercom has a user-friendly and intuitive interface, making it easy for both technical and non-technical users to navigate and set up. The platform emphasizes simplicity and provides a seamless user experience, particularly for customer engagement features. Conversely, Marketo has a more complex interface and often requires technical expertise to fully leverage its functionality. Marketo is geared towards users with a deeper understanding of marketing automation and demands a steeper learning curve.

5. Key Difference 5: Scope of Functionality Intercom offers a comprehensive suite of features mainly focused on customer communication, support, and engagement. It includes live chat, push notifications, in-app messaging, and knowledge base management. Marketo, on the other hand, provides a broader range of marketing automation functionalities, including lead scoring, dynamic content personalization, multi-channel campaign management, and CRM integration. Marketo's scope is more extensive and designed for businesses with more robust marketing requirements.

6. Key Difference 6: Data Analytics and Reporting Intercom provides basic analytics and reporting capabilities, allowing users to track and monitor key metrics related to customer conversations and engagement. While it offers insights into customer behavior and trends, it doesn't provide advanced data analysis features. In contrast, Marketo offers more robust analytics and reporting capabilities, giving marketers in-depth insights into the entire lead lifecycle, ROI attribution, campaign performance, and revenue analytics. Marketo's focus on data-driven marketing helps businesses gain valuable insights for strategic decision-making.

In Summary, Intercom is primarily focused on customer support and engagement, offering user-friendly interface, integration capabilities, and basic analytics. In contrast, Marketo caters more to marketing professionals, providing advanced marketing automation features, extensive integration possibilities, and comprehensive analytics and reporting capabilities.