Total addressable Market calculator vs Starnus
Side-by-side comparison of features, pros & cons, pricing, and community votes (2026).
🏆 Starnus leads with 579 upvotes

Calculate your TAM from 100M+ real companies
Total Addressable Market (TAM) Calculator is a powerful, data-driven tool designed to simplify the complex process of market sizing. Utilizing a database of over 100 million real companies, it enables sales and marketing teams to accurately identify the number of potential customers that match their ideal customer profile. Unlike traditional methods that rely on assumptions, reports, or guesswork, this calculator provides concrete insights based on actual company data, making market assessments more reliable and actionable. Its user-friendly interface requires no signup and is completely free, making it accessible for startups, SMBs, and enterprise teams alike. By transforming abstract market estimates into a list of tangible companies, it helps teams focus their outreach and strategic planning with confidence, ultimately accelerating growth and reducing wasted effort.
Pros
- Uses real company data from over 100 million firms for accurate TAM estimation
- No signup or cost, offering instant access and ease of use
- Helps transform high-level market estimates into actionable target lists
- User-friendly interface suitable for teams of all sizes
- Supports data-driven decision-making in sales and marketing strategies
Cons
- Limited to companies within the database; may miss small or niche markets
- Lacks detailed segmentation or industry-specific filters
- No integration with CRM or marketing tools for automated workflows
Best for
- • Estimating total market size for startup founders and entrepreneurs
- • Refining target audiences for outbound sales campaigns
- • Assessing market opportunity before product launches
- • Prioritizing markets based on actual company counts
Pricing: Likely free to use, as the tool emphasizes no signup and free access, making it ideal for quick, initial market assessments. No information suggests premium plans or paid tiers at this time.

Find and reach your next customers on autopilot
Starnus is an all-in-one outbound sales and marketing automation platform designed for founders and B2B teams aiming to streamline their customer acquisition process. By leveraging simple prompts, users can define their ideal customer profile (ICP), identify lookalike prospects, enrich data with business and contact information, craft personalized outreach messages, and monitor responses—all within a single, integrated platform. Its user-friendly interface simplifies complex outreach workflows, making it accessible even for teams with limited technical expertise. What sets Starnus apart is its end-to-end approach, combining prospecting, data enrichment, messaging, and tracking in one seamless environment—saving time and boosting outreach efficiency. With a growing community and over 579 votes on Product Hunt, it clearly resonates with sales and marketing teams looking for a smart, automated solution to scale their customer engagement efforts.
Pros
- All-in-one platform integrating prospecting, outreach, and tracking
- User-friendly interface with simple prompts for easy operation
- Automated data enrichment with business and contact info
- Personalized outreach generation to improve response rates
- End-to-end solution reducing the need for multiple tools
Cons
- Potential limitations in customization for advanced users
- Pricing details are unclear; may be costly for small teams
- Dependent on data accuracy and availability for optimal results
Best for
- • Automating outbound sales campaigns for B2B startups
- • Building targeted prospect lists based on ideal customer profiles
- • Enriching prospect data to improve outreach quality
- • Generating personalized email sequences at scale
Pricing: Likely operates on a subscription-based model with tiered plans, possibly offering a free trial or freemium features. Exact pricing details are not publicly confirmed but may start at affordable monthly rates for small teams, increasing with additional features or contacts.