It seems like you have a wide range of products and services that you are looking to effectively. Here's a simplified marketing plan including social channels to utilize for promoting your apps in the market:

1. **Identify Your Target Audience**: Before starting any marketing campaigns, it is crucial to understand who your target audience is for each service. This will help tailor your messaging and reach the right people effectively.

2. **Simplified Marketing Campaign**:

   a. **Define Your Unique Selling Proposition (USP)**: Clearly define what sets your apps apart from competitors. Highlight the benefits and value they provide to users.

   b. **Create Engaging Content**: Develop high-quality content such as blog posts, infographics, videos, and case studies to showcase the features and benefits of your apps. Make sure the content is informative and captures the attention of your target audience.

   c. **Leverage Email Marketing**: Create segmented email campaigns to target different customer segments. Promote new features, special offers, and updates to keep users engaged.

   d. **Utilize Influencer Marketing**: Collaborate with influencers in the tech or travel industry to promote your apps. Influencers can help increase brand visibility and credibility.

   e. **Run Promotions and Contests**: Offer limited-time promotions, discounts, or contests to generate buzz around your apps. This can help attract new users and retain existing ones.

3. **Best Social Channels to Run**:

   a. **Facebook**: With its large user base and robust advertising platform, Facebook is a great channel to reach a broad audience. You can target specific demographics and interests to maximize reach.

   b. **Instagram**: Ideal for visual content, Instagram can be used to showcase the travel aspect of your apps with stunning imagery and videos. Utilize Instagram Stories and IGTV for interactive content.

   c. **LinkedIn**: Target B2B audiences and promote your doo.tours B2B service on LinkedIn. Utilize LinkedIn ads and posts to reach businesses in the travel industry.

   d. **Twitter**: Engage with your audience in real-time, share updates, and participate in relevant conversations on Twitter. Use hashtags to increase visibility.

   e. **YouTube**: Create video content to demonstrate the functionality of your apps, user testimonials, and tutorials. YouTube is a powerful platform for engaging with your audience visually.

Remember to track and analyze the performance of your marketing campaigns to optimize for success. Stay consistent with your efforts and adapt your strategies based on feedback and results. Good luck with your app promotion!