Marketing Strategy
9 minute read

Cometly vs HubSpot Marketing Hub: The Real-Time Data Performance Marketers Can’t Ignore

Written by

Matt Pattoli

Founder at Cometly

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Published on
September 2, 2025
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In the ever-evolving landscape of marketing technology, Cometly and HubSpot Marketing Hub stand out as two exceptional solutions tailored to meet the diverse needs of businesses. While both platforms excel in their respective areas, they serve different purposes that can significantly impact how organizations approach their marketing strategies. This article will delve into a comprehensive comparison of Cometly and HubSpot, exploring their unique strengths, functionalities, and how they can complement each other in achieving marketing success. Whether you are looking for precise attribution and analytics or a robust marketing automation and CRM system, both Cometly and HubSpot offer valuable tools to enhance your marketing efforts.

Both Cometly and HubSpot Marketing Hub play vital roles in the marketing technology landscape, yet they cater to different needs and functions within marketing strategies.

Cometly is dedicated to providing real-time marketing attribution and analytics, enabling businesses to optimize ad performance with precision. This platform offers insights into which advertising efforts—be it ads, campaigns, or channels—are most effective in driving leads and revenue, allowing users to make informed decisions to enhance successful initiatives.

Cometly

HubSpot Marketing Hub, on the other hand, serves as a comprehensive marketing automation and CRM solution. It facilitates the management of campaigns, lead capture, contact nurturing, and the automation of customer journeys across various platforms, including email, web, and social media.

Hubspot

Key Distinction:
While HubSpot focuses on executing marketing campaigns, Cometly emphasizes measuring their effectiveness and enhancing return on investment (ROI). Essentially, HubSpot drives marketing activity, whereas Cometly provides the insights needed to understand and improve that activity. For more on how these platforms can work together, check out our insights on integrations and marketing automation.

Tracking Accuracy and Attribution Depth

This is where Cometly dominates.

Cometly

  • Uses server-side tracking to bypass browser limitations, ad blockers, and iOS privacy restrictions.
  • Assigns a unique comet_token to every visitor, linking sessions across domains and devices for full-funnel visibility.
  • Offers multi-touch attribution models (first click, last click, linear, time-decay, U-shaped, W-shaped).
  • Delivers real-time attribution updates directly tied to ad spend from Meta, Google, TikTok, LinkedIn, etc.
  • Enriches events with complete visitor profiles before sending them back to ad platforms via Conversion APIs (CAPI), improving event match quality and targeting.

Result: You get accurate, high-fidelity attribution data even when third-party cookies are blocked.

HubSpot

  • Uses pixel and contact-based tracking via cookies and email form submissions.
  • Attribution works best when everything happens inside HubSpot — i.e., HubSpot forms, landing pages, and emails.
  • Multi-touch attribution exists, but it’s limited to Enterprise plans and is not designed for granular ad optimization.
  • Data loss increases with cross-domain activity and ad-blocking.

Result: You get decent funnel attribution, but it’s less accurate for paid media and cross-domain journeys.

High-impact takeaway:
If ad accuracy and attribution fidelity matter, Cometly wins by a large margin. HubSpot is sufficient for basic journey visualization but struggles under modern privacy constraints.

Tracking accuracy is crucial when running large ad campaigns, as it directly impacts the ability to measure performance, optimize spending, and ultimately drive return on investment (ROI). In the context of substantial advertising expenditures, even small discrepancies in tracking can lead to significant financial implications. Accurate tracking ensures that every dollar spent on advertising is accounted for, allowing businesses to identify which campaigns and channels yield the best results.

When organizations run large-scale ad campaigns, they often utilize multiple platforms, each with its own tracking mechanisms. Inaccuracies can arise from factors such as cross-domain tracking issues, browser restrictions, or ad blockers, leading to incomplete or misleading data. For instance, if a company fails to accurately attribute conversions to the right ads, it may continue investing in underperforming channels while neglecting those that drive actual sales.

Additionally, precise tracking allows marketers to make real-time adjustments to their campaigns. With accurate data, businesses can identify trends and anomalies, such as an ad’s sudden drop in performance, enabling them to react quickly to optimize their ad spend. This agility is especially important in competitive markets where timely decisions can lead to a significant advantage.

Moreover, accurate tracking contributes to better customer insights. Understanding how consumers interact with ads across various touchpoints helps businesses refine their targeting strategies and improve overall customer engagement. This holistic view of the customer journey is essential for crafting personalized experiences that resonate with potential buyers.

In summary, the importance of tracking accuracy in large ad campaigns cannot be overstated. It enables organizations to allocate resources effectively, optimize performance, and enhance customer understanding, ultimately leading to more successful marketing outcomes.

Managing Advertising Campaigns and Media Performance

Cometly

  • Built specifically for ad-driven businesses.
  • Offers a unified Ads Manager for Facebook, Google, TikTok, and LinkedIn.
  • Provides AI-powered insights that analyze spend, ROAS, CPA, conversion quality, and momentum across platforms.
  • Surfaces actionable recommendations (e.g., “pause this ad set,” “scale this creative,” “shift 20% budget to Campaign A”).
  • Allows you to track every conversion — leads, purchases, calls, subscriptions — across the entire funnel.

Essentially: Cometly connects what you spend to what you earn with real-time feedback loops.

HubSpot

  • Ad management exists, but it’s add-on functionality (Meta, Google, LinkedIn integrations).
  • Focuses more on lead capture and CRM synchronization than ad-level performance.
  • Doesn’t provide real-time recommendations or optimization suggestions.
  • No AI that adapts or trains on performance data from multiple platforms.

Essentially: HubSpot lets you manage and attribute ads, but it’s not built to optimize them.

High-impact takeaway:
For companies spending heavily on paid media, Cometly provides actionable insight loops that drive higher ROI. HubSpot gives you visibility but not optimization.

Multi-Touch Attribution and Customer Journeys

Cometly

  • Gives you complete control over attribution models and windows.
  • Lets you toggle between models to see how results shift (e.g., last-click vs. linear vs. U-shaped).
  • Displays full buyer journeys — every ad click, visit, form, email, and purchase.
  • Enables comparison of multiple attribution models side-by-side inside reports.
  • Data can be sliced by channel, campaign, creative, keyword, or audience.

Marketers use it to identify which touchpoints truly drive conversions.

HubSpot

  • Offers attribution modeling (mainly for HubSpot Enterprise users).
  • Visualization is limited to HubSpot-tracked events — ad clicks outside the HubSpot ecosystem may not fully populate.
  • Great for high-level visibility but not for precision modeling.

It works for broad storytelling but not for optimizing budgets at the campaign or ad level.


High-impact takeaway:

  • Cometly’s attribution system is purpose-built for cross-channel clarity and ad-level precision.
  • HubSpot’s attribution is campaign-level and CRM-oriented.

Real-Time vs. Delayed Data

  • Cometly: Real-time data sync and attribution updates as events occur.
  • HubSpot: Data updates every few hours (or longer) depending on the source and integrations.

Real-time tracking matters when you’re optimizing ad spend daily or hourly.
HubSpot’s latency makes it more suited to campaign retrospectives, not live adjustments.

Reporting and Dashboards

Cometly

  • Fully customizable dashboards with drag-and-drop metrics.
  • Lets you build cross-channel performance views combining ad spend, conversions, and revenue.
  • Supports agency-style client dashboards across multiple workspaces.
  • Drill-down capability from campaign → ad set → ad → conversion.
  • Dashboards update in real time.
  • Cometly Ads Manager is designed to empower marketers with a comprehensive toolset for managing and optimizing advertising campaigns across various platforms. This feature centralizes advertising efforts by integrating data from channels like Facebook, Google, TikTok, and LinkedIn, enabling users to view performance metrics in one unified dashboard. By consolidating data, Cometly Ads Manager allows businesses to streamline their advertising strategies and make informed decisions based on real-time insights.
  • One of the standout capabilities of the Cometly Ads Manager is its AI-powered insights. The platform analyzes various metrics such as return on ad spend (ROAS), cost per acquisition (CPA), and conversion quality. This analysis provides actionable recommendations, helping marketers understand which ads to scale, pause, or adjust based on performance trends. For example, if a specific ad set shows a significant increase in CPA, the system might suggest reducing the budget allocated to that set while reallocating funds to better-performing campaigns.
Informational graphic
  • Moreover, Cometly's Ads Manager facilitates real-time tracking of conversions across the entire marketing funnel. This feature ensures that every lead generated from ads, whether through website visits, form submissions, or purchases, is accounted for accurately. By linking spending directly to revenue, marketers can optimize their campaigns for maximum effectiveness, ensuring that every dollar spent is strategically allocated to initiatives that yield the best results.
  • In addition to its performance tracking, the Ads Manager’s interface is user-friendly, allowing marketers to customize their dashboards easily. Users can create tailored views that highlight the metrics most relevant to their goals, whether that’s overall campaign performance or specific ad-level insights. This flexibility not only enhances usability but also empowers teams to focus on the data that drives their strategies forward.
  • Overall, the Cometly Ads Manager is an essential tool for businesses looking to enhance their advertising performance. By providing a centralized hub for data analysis and campaign management, it enables marketers to make data-driven decisions that improve ROI and streamline their advertising efforts.

HubSpot

  • Dashboards focus on marketing and sales metrics (contacts, deals, campaign influence).
  • Attribution and ad data require higher-tier plans.
  • Good for funnel summaries and reporting to executives, less for granular ad analysis.

High-impact takeaway:
Cometly = performance dashboards.
HubSpot = marketing & CRM dashboards.
Different purposes, different layers of insight.

Conversion API and Match Rate Optimization

Cometly

  • Automatically sends enriched conversion data back to Meta, Google, TikTok, and LinkedIn.
  • Every event is enriched with the visitor’s full profile, drastically improving event match quality.
  • This feedback loop increases ad delivery accuracy and improves cost per result (CPA).
  • Built to boost ROAS through cleaner feedback signals.
Informational graphic

HubSpot

  • Sends basic conversion data through native ad integrations.
  • Not designed to enrich or optimize match rate quality at the level Cometly does.
  • No direct control over CAPI signal depth or structure.

High-impact takeaway:
Cometly’s Conversion API system directly improves ad platform learning — a real financial benefit HubSpot can’t replicate.

AI and Automation

Cometly

  • Features an AI Ads Manager that learns from your ad account performance.
  • Surfaces daily, proactive insights (e.g., “This ad’s cost per purchase increased 38% — consider pausing”).
  • Analyzes trends, anomalies, and opportunities in real time.
  • Integrates AI into its analytics layer — not just reporting, but optimization direction.

HubSpot

  • AI assists with content creation and workflows (e.g., AI writing tools, subject line generation).
  • Focused on productivity and marketing automation rather than performance optimization.

High-impact takeaway:
Cometly’s AI is data-driven and focused on ad performance.
HubSpot’s AI is content-driven and focused on marketing efficiency.

Use Cases by Business Type

Business TypeBetter With CometlyBetter With HubSpotE-commerce / DTCTracks every sale and ad event in real time; improves ROAS via CAPIUseful for post-purchase emails and automationB2B SaaS / Sales-LedMaps long journeys, connects CRM deals to ad clicksGreat for nurturing, sales pipeline, and CRM workflowsAgenciesMulti-client workspaces, attribution reporting, campaign optimizationClient management, communication, marketing opsEnterprise Marketing TeamsCross-channel visibility and performance accountabilityDepartmental collaboration and data warehousingMedia Buyers / Performance MarketersReal-time optimization, ad-level ROILead scoring, nurturing, and CRM syncing

High-impact takeaway:
Cometly is for performance-driven teams; HubSpot is for operations-driven teams.

Cost and Scalability

Cometly

  • Pricing typically based on ad spend tiers.
  • Lower entry cost compared to HubSpot Enterprise.
  • Scales with data volume, not feature gating.
  • Agency-friendly pricing available.

HubSpot

  • Tiered pricing (Free → Starter → Professional → Enterprise).
  • Costs increase sharply as contact counts and features rise.
  • Advanced attribution, automation, and reporting features are locked behind Enterprise tiers.

High-impact takeaway:
Cometly delivers enterprise-grade attribution without the enterprise price.
HubSpot is cost-effective for small teams but quickly becomes expensive for growing databases.

Flexibility and Vendor Lock-In

  • Cometly: Integrates with any tech stack — you can move CRMs, form tools, or CMS without losing attribution continuity.
  • HubSpot: The deeper you go into HubSpot, the harder it becomes to migrate away.

High-impact takeaway:
Cometly = flexibility and interoperability.
HubSpot = convenience and lock-in.

Implementation and Setup Time

  • Cometly: Add a pixel → connect ad accounts → sync CRM → done. Takes minutes.
  • HubSpot: Requires more configuration — forms, workflows, user permissions, integrations, and CRM setup.

High-impact takeaway:
Cometly setup = hours.
HubSpot setup = days to weeks.

Putting It All Together

In conclusion, the choice between Cometly and HubSpot Marketing Hub ultimately depends on the specific needs and objectives of your organization. Cometly shines with its advanced tracking capabilities, real-time data insights, and robust attribution models, making it an ideal solution for businesses focused on optimizing ad performance and maximizing return on investment. Its ability to provide detailed visibility into every touchpoint of the customer journey allows marketers to make informed decisions and adapt strategies on the fly.

On the other hand, HubSpot serves as a comprehensive marketing automation and CRM platform that excels in managing customer relationships, nurturing leads, and executing marketing campaigns across multiple channels. Its strengths lie in facilitating seamless communication between sales and marketing teams and automating workflows, making it a valuable tool for organizations prioritizing operational efficiency and customer engagement.

For many businesses, leveraging both Cometly and HubSpot in tandem can yield significant benefits, combining the strengths of precise attribution with powerful marketing automation. By understanding the unique capabilities of each platform, organizations can tailor their marketing strategies to drive better results, enhance customer experiences, and ultimately achieve their business goals.

Struggling With Marketing Attribution?

Learn how Cometly can help you pinpoint channels driving revenue.

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