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Data engineering

Heroku Connect vs Stacksync: Real-Time Sync Showdown for Ops Teams

Compare Heroku Connect vs. Stacksync on real-time speed, connectivity, error handling, and cost to find the best data sync tool for your ops team.

Heroku Connect vs Stacksync: Real-Time Sync Showdown for Ops Teams

For modern operations, engineering, and RevOps teams, maintaining a single source of truth is not just a goal; it's a requirement for powering mission-critical applications and driving business velocity. Real-time data synchronization is the backbone of this strategy.

This brings a critical challenge: choosing the right tool. Do you opt for an established, ecosystem-specific service like Heroku Connect, or a modern, purpose-built platform like Stacksync? This article provides a direct comparison of Heroku Connect and Stacksync, evaluating key criteria like speed, connectivity, scalability, and cost to help your team make an informed decision.

What is Heroku Connect? A Look at Salesforce Data Sync

Heroku Connect is a data synchronization service that creates a connection between a Salesforce organization and a Heroku Postgres database [7]. Its primary function is to enable developers to interact with Salesforce data directly within their Heroku applications using standard SQL, simplifying development for apps built on the Heroku platform.

While Heroku Connect supports bi-directional sync, its architecture is fundamentally batch-based. Updates are processed through a polling mechanism, which typically has a minimum interval of 10 minutes. This latency means it's not a true real-time solution. The most significant limitation, however, is its nature as a point-to-point solution designed exclusively for the Salesforce and Heroku Postgres ecosystem. For teams needing to integrate a wider array of tools, Heroku Connect falls short. Furthermore, its pricing, which is often tied to the number of synced rows, can escalate quickly, creating significant and often unpredictable budget challenges [2].

Introducing Stacksync: The Real-Time, Bi-Directional Alternative

Stacksync is a modern data sync and workflow automation platform engineered for true real-time, bi-directional data movement. Unlike single-ecosystem tools, Stacksync is designed to connect a wide variety of systems, including CRMs like HubSpot and Pipedrive, ERPs such as NetSuite, and a vast range of databases like MySQL and Snowflake. This makes it one of the leading Heroku Connect and Fivetran vs Stacksync Real-Time Sync Platform for Mid-Market choices.

For ops teams, Stacksync’s key differentiators deliver tangible operational advantages:

  • True Real-Time Speed: Data synchronization occurs in milliseconds, not minutes, driven by events as they happen.
  • Native Two-Way Sync: The platform is built from the ground up for reliable bi-directional flows, with advanced conflict resolution to prevent data corruption.
  • Issue Management: A dedicated dashboard provides real-time monitoring, alerts, and one-click resolution for sync errors, eliminating silent failures.
  • Scalability: Engineered to handle millions of records from day one without performance degradation or surprise costs.
  • Smart API Rate Limits: Automatically manages and optimizes API consumption to prevent hitting rate limits and disrupting service.

These Stacksync Features for Real-Time Bi-Directional Data Sync Efficiency are designed to empower technical teams, not burden them.

Head-to-Head Comparison: Stacksync vs. Heroku Connect

To better compare Heroku Connect and Stacksync, here is a breakdown of their core functionalities.

Feature Heroku Connect Stacksync
Sync Speed Batch-based (10-minute minimum interval) Event-driven (millisecond latency)
Directionality Bi-directional (with potential complexity) Native bi-directional (real-time conflict resolution)
Connectivity Salesforce & Heroku Postgres only 200+ connectors (CRMs, ERPs, Databases)
Error Handling Manual log review; prone to silent failures Proactive dashboard with alerts & 1-click resolution
Scalability Limited by row-based pricing and architecture Built for millions of records with predictable costs
Pricing Model Based on row count; can be unpredictable Value-based plans; more cost-effective at scale

Key Takeaways

Stacksync delivers millisecond-level, real-time synchronization with native bi-directional support, proactive error handling, and predictable pricing designed for scalability.

Heroku Connect relies on batch-based sync and manual monitoring, limiting scalability and increasing costs as data volumes grow.

For teams seeking a modern, high-speed, and cost-efficient sync alternative, Stacksync provides the flexibility and reliability that legacy connectors lack.

Sync Speed and Directionality

Heroku Connect: Relies on batch-based synchronization, polling for changes at a minimum frequency of 10 minutes [8]. While it offers bi-directional capabilities, the delay and batch processing can lead to data conflicts that are complex to untangle.

Stacksync: Delivers true real-time, event-driven synchronization with changes propagating in milliseconds. Its architecture is natively designed for reliable two-way sync, which is a core advantage of Heroku Connect vs. Purpose-Built Solutions: Choosing the Right CRM Sync Platform. This ensures data consistency is maintained across all connected systems without manual oversight.

Connectivity and Flexibility

Heroku Connect: Functions as a point-to-point solution, tightly locked into the Salesforce and Heroku Postgres ecosystem. It is not designed for integrating with other databases, ERPs, or modern SaaS applications, severely limiting its utility in a diverse tech stack.

Stacksync: is a platform-agnostic solution that offers a growing library of over 200 connectors. This allows organizations to build complex, multi-point integrations and automate workflows across their entire technology stack, making it one of the premier Stacksync vs Workato and Heroku Connect Alternatives for Real-Time Data Sync.

Error Handling and Reliability

Heroku Connect: Error resolution is often a manual and time-consuming process that requires digging through logs. The platform is susceptible to "silent failures," where sync issues can go unnoticed for extended periods, leading to data integrity problems.

Stacksync: Provides a proactive issue management dashboard. The Stacksync Platform offers real-time alerts via Slack or email and empowers ops teams to retry or revert failed syncs with a single click. This drastically reduces maintenance time and guarantees data reliability.

Pricing and Total Cost of Ownership (TCO)

Heroku Connect: Pricing is primarily based on the number of rows synced. This model can become prohibitively expensive as data volumes grow, leading to unpredictable costs that can be a major budget drain [3].

Stacksync: Offers more predictable and cost-effective pricing. By focusing on value and features rather than just penalizing data volume, Stacksync reduces the hidden costs associated with engineering maintenance, troubleshooting, and operational downtime. You can learn more by reading a Demystifying Pricing Models: A Comparative Analysis of Stacksync, Heroku Connect, and Workato.

The Verdict: When to Choose Heroku Connect vs. Stacksync

Making the right choice depends entirely on your operational needs and technical ecosystem.

Choose Heroku Connect if: Your organization is deeply committed to the Heroku and Salesforce ecosystem, your only use case is syncing Salesforce data to a Heroku Postgres database, and near-real-time performance (i.e., delays of 10 minutes or more) is acceptable for your applications.

Choose Stacksync if: You require true real-time, bi-directional sync for mission-critical operations, need to integrate multiple systems beyond Salesforce, demand robust error handling to ensure data reliability, and are looking for a scalable and more cost-effective Heroku Connect alternative.

Ready to see the difference a real-time sync platform can make? Start your 14-day free trial with Stacksync and experience the power of effortless data synchronization.

→  FAQS
How does Stacksync handle data conflicts in two-way sync better than Heroku Connect?
Stacksync uses an advanced conflict resolution engine built on a real-time, event-driven architecture, which minimizes the potential for conflicts before they occur. When a conflict is detected, it provides clear versioning history and resolution paths directly in its issue management dashboard. In contrast, Heroku Connect's batch processing model can lead to more frequent data overwrites and often requires manual intervention to resolve discrepancies between Salesforce and Postgres.
Can I migrate from Heroku Connect to Stacksync without data loss?
Yes, migrating from Heroku Connect is a straightforward and safe process. Stacksync provides white-glove onboarding and comprehensive documentation to facilitate a seamless transition. The initial sync is configured to perfectly match your existing data state in both systems. Once validated, the real-time sync is enabled, ensuring a clean cutover with zero downtime or data loss.
What is the real-time sync speed of Stacksync compared to Heroku Connect's 10-minute interval
Stacksync operates in true real-time, syncing data changes within milliseconds of an event occurring in a source system. This is fundamentally different from Heroku Connect's polling method, which checks for changes at set intervals, with the fastest being every 10 minutes. For mission-critical use cases like inventory management, real-time pricing updates, or immediate customer support actions, this difference is crucial for operational success.
Does Stacksync support custom objects and fields from Salesforce and other CRMs?
Absolutely. Stacksync provides full support for both standard and custom objects and fields across all its connectors, including Salesforce, NetSuite, and HubSpot. During the no-code setup process, Stacksync automatically discovers the entire data schema of your connected systems. This allows users to easily map any field, including complex custom configurations, without writing a single line of code.
What's the cost difference between Stacksync and Heroku Connect for syncing 1 million records?
While exact pricing depends on the specific plan, the models are fundamentally different. Heroku Connect's cost is directly tied to row count, which can become expensive and unpredictable when syncing 1 million records. Stacksync offers more predictable, bundled pricing that is significantly more cost-effective at scale, potentially offering up to 60-70% in savings by focusing on features and value rather than just data volume [[6]](https://www.stacksync.com/blog/best-heroku-connect-alternatives-2025-save-70-costs). For more detailed comparisons, you can review our breakdown of Top Heroku Connect Alternatives With Pricing [[1]](https://stacksync.com/blog/top-heroku-connect-alternatives-pricing).