Stacksync review
A high-capacity reverse ETL platform for real-time, bidirectional operational sync.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Stacksync is a data integration platform for connecting CRMs, ERPs, databases, SaaS applications, data warehouses, and streaming systems. It is designed for engineering, data, RevOps, finance, e-commerce, and customer-support teams that need operational data synchronized with warehouse and business systems in real time. Its core scope includes reverse ETL, field and table mapping with type conversion, workflow automation, configurable write direction, monitoring, issue tracking, and failed-event replay. The platform is available through web, API, and self-hosted deployment options.
Pricing is structured for organizations with substantial synchronization requirements. The Starter plan costs $1,000 per month with annual billing and includes 1 active sync, 50K records in sync, workflow automation, basic connectors, 3 collaborators, and 1 day of log retention. Pro costs $3,000 per month with annual billing and adds 3 active syncs, 1M records in sync, unlimited collaborators, SOC 2 Type II, ISO 27001, HIPAA, a management API, configuration as code, and a dedicated Slack support channel. Managed Pro costs $4,200 per month with annual billing and adds dedicated US-based engineers, unlimited new implementations and maintenance, a dedicated integration lead, live support, 24/7 incident response, and multiple processing regions. Enterprise adds unlimited syncs, enterprise connectors, SSO and SCIM, a 24/7 support hotline, a dedicated solutions architect, and custom processing regions.
The standout capability is operational synchronization in both directions, rather than warehouse-to-application delivery alone. Automatic data backfill, event queues, replay, AI auto-mapping, AI agents, and a custom connector development kit support complex data flows across systems including Salesforce, HubSpot, NetSuite, Snowflake, BigQuery, Kafka, and PostgreSQL. Stacksync fits enterprises that need real-time reverse ETL, two-way writes, self-hosting, and managed support. Smaller teams, occasional sync users, and buyers seeking a low-cost entry plan should consider a narrower or lower-priced alternative.
Stacksync pros and cons
- Where it wins
- Real-time one-way and two-way synchronization with configurable write direction
- Backfill, failed-event replay, monitoring, and managed event queues
- Self-hosting, custom connectors, and management API support
- Where it doesn't
- Starter begins at $1,000 per month with annual billing
- Starter limits teams to 1 active sync and 50K records in sync
- Advanced enterprise features require higher-tier plans
Stacksync fact sheet, pricing and score →
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