# What pairs well with Census > Census is a CDP tool, and a team running it still has 7 neighbouring categories to staff. The pick in each is Amplitude for product analytics & session replay, Google Analytics 4 for GTM analytics, HubSpot Marketing Hub for marketing automation, Mailchimp for email service providers, Paddle Retain for retention & churn prevention, Zapier for GTM engineering and Postscript for SMS marketing, each the leading tool in that category on published criteria. - Profile: https://saastracker.org/products/census - Category: Customer Data Platforms (https://saastracker.org/categories/customer-data-platforms) - Web version: https://saastracker.org/products/census/stack ## The stack, category by category | Category | Ideal pairing | Because | Benefit | | --- | --- | --- | --- | | Product Analytics & Session Replay | [Amplitude](https://saastracker.org/products/amplitude) (Category Leader) | Census is built for CDP, not product analytics. Amplitude adds broadest self-serve platform in the category. | Feature usage and drop-off are measurable, so a roadmap argument can end with evidence. | | GTM Analytics | [Google Analytics 4](https://saastracker.org/products/google-analytics) (Category Leader) | Census is built for CDP, not analytics. Google Analytics 4 adds data-driven attribution across Google and non-Google channels. | Spend gets attributed to revenue, so the channel that works is the one that gets funded. | | Marketing Automation | [HubSpot Marketing Hub](https://saastracker.org/products/hubspot-marketing-hub) (Category Leader) | Census is built for CDP, not automation. HubSpot Marketing Hub adds shared CRM database across marketing, sales, service, and content. | Follow-up fires off behaviour rather than a calendar, so nobody is chased at the wrong moment. | | Email Service Providers | [Mailchimp](https://saastracker.org/products/mailchimp) (Category Leader) | Census is built for CDP, not ESPs. Mailchimp adds mature developer surface. | An opt-in audience is owned rather than rented, and reaching it costs nothing per send. | | Retention & Churn Prevention | [Paddle Retain](https://saastracker.org/products/paddle-retain) (Category Leader) | Census is built for CDP, not retention. Paddle Retain adds test mode in the developer documentation. | Accounts at risk surface while there is still time to call, rather than at renewal. | | GTM Engineering | [Zapier](https://saastracker.org/products/zapier) (Category Leader) | Census is built for CDP, not GTM engineering. Zapier adds fastest time-to-first-automation in the category. | The workflow nobody wanted to buy a whole tool for gets built in an afternoon. | | SMS Marketing | [Postscript](https://saastracker.org/products/postscript) (Category Leader) | Census is built for CDP, not SMS. Postscript adds shopify-native data model. | The urgent message gets read within minutes, on the one channel almost nobody ignores. | ### Amplitude for Product Analytics & Session Replay Census is built for CDP, not product analytics. Amplitude adds broadest self-serve platform in the category. Feature usage and drop-off are measurable, so a roadmap argument can end with evidence. Behavioural cohorts are a first-class shared object rather than a per-report filter, so one definition drives charts, experiments, guides, and outbound audiences. Mixpanel holds Best Value in the same category, and is the swap to make when the budget matters more than the ceiling. ### Google Analytics 4 for GTM Analytics Census is built for CDP, not analytics. Google Analytics 4 adds data-driven attribution across Google and non-Google channels. Spend gets attributed to revenue, so the channel that works is the one that gets funded. Free at unlimited traffic volume, which no privacy-first competitor can match once a site passes a few hundred thousand pageviews a month. Umami holds Best Value in the same category, and is the swap to make when the budget matters more than the ceiling. ### HubSpot Marketing Hub for Marketing Automation Census is built for CDP, not automation. HubSpot Marketing Hub adds shared CRM database across marketing, sales, service, and content. Follow-up fires off behaviour rather than a calendar, so nobody is chased at the wrong moment. Reporting and multi-touch attribution are the best in this category by some distance, and they are the honest justification for Professional pricing. EngageBay holds Best Value in the same category, and is the swap to make when the budget matters more than the ceiling. ### Mailchimp for Email Service Providers Census is built for CDP, not ESPs. Mailchimp adds mature developer surface. An opt-in audience is owned rather than rented, and reaching it costs nothing per send. Deliverability is actively defended by Omnivore, which is annoying when it blocks your import and valuable when it keeps the shared pools clean. Sender holds Best Value in the same category, and is the swap to make when the budget matters more than the ceiling. ### Paddle Retain for Retention & Churn Prevention Census is built for CDP, not retention. Paddle Retain adds test mode in the developer documentation. Accounts at risk surface while there is still time to call, rather than at renewal. Covers three jobs where competitors cover one or two: failed-payment recovery, cancellation deflection, and term optimization. ChartMogul holds Best Value in the same category, and is the swap to make when the budget matters more than the ceiling. ### Zapier for GTM Engineering Census is built for CDP, not GTM engineering. Zapier adds fastest time-to-first-automation in the category. The workflow nobody wanted to buy a whole tool for gets built in an afternoon. The ~8,000-app catalog is the category's deepest moat. Make holds Best Value in the same category, and is the swap to make when the budget matters more than the ceiling. ### Postscript for SMS Marketing Census is built for CDP, not SMS. Postscript adds shopify-native data model. The urgent message gets read within minutes, on the one channel almost nobody ignores. Compliance is a product feature rather than a disclaimer: quiet hours by recipient time zone are the default, an in-house legal team tracks rule changes, and consent records are stored per subscriber with source and timestamp. Textedly holds Best Value in the same category, and is the swap to make when the budget matters more than the ceiling. ## Not a substitute for A buyer chooses between these and Census rather than running both, so nothing here is paired across them. - **Customer Segmentation** (https://saastracker.org/categories/customer-segmentation): Customer segmentation tools group an existing customer base into targetable cohorts, using recency, frequency, and monetary behavior, lifetime value, and firmographic similarity, then push those segments into the email, ads, and CRM tools that act on them. ## FAQ ### What is the best stack to run with Census? Census is a CDP tool, and a team running it still has 7 neighbouring categories to staff. The pick in each is Amplitude for product analytics & session replay, Google Analytics 4 for GTM analytics, HubSpot Marketing Hub for marketing automation, Mailchimp for email service providers, Paddle Retain for retention & churn prevention, Zapier for GTM engineering and Postscript for SMS marketing, each the leading tool in that category on published criteria. ### What do I pair with Census for Product Analytics & Session Replay? Amplitude. Census is built for CDP, not product analytics. Amplitude adds broadest self-serve platform in the category. Feature usage and drop-off are measurable, so a roadmap argument can end with evidence. ### How many tools do I need alongside Census? Census sits next to 7 other categories in a working CDP stack, and its own profile names the gap each one fills. Most teams staff the first two or three and add the rest as the motion grows. ### Do I need Customer Segmentation as well as Census? No. Customer Segmentation is a category a buyer chooses between rather than alongside Census, so pairing across it would mean buying both halves of a decision already made. ### Is Postscript worth adding alongside Census? Census is built for CDP, not SMS. Postscript adds shopify-native data model. The urgent message gets read within minutes, on the one channel almost nobody ignores. --- Source: SaaSTracker (https://saastracker.org), an independent editorial project. Pairings are the leading tool in each complementary category, chosen on published criteria: https://saastracker.org/methodology. Placement cannot be purchased.