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Head-to-head · Reverse ETL Tools

Weld vs Stacksync

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score Weld #6 in Reverse ETL Tools 8.7/10 14-day trial Free trial✓ 1 of 1 features Visit Weld
Stacksync #11 in Reverse ETL Tools 8.2/10 14-day trial Free trial✓ 1 of 1 features Visit Stacksync

Weld leads on 1 check, Stacksync on 0, and 2 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreWeld · 8.7/10
  • Lowest starting priceWeld · $99/mo
  • Free trialboth

Weld scores higher on our rubric for reverse etl tools: 8.7 against 8.2 out of 10; our editors rank them #6 and #11.

Weld is cheaper to start at $99/mo against $1,000/mo. On sync frequency, Stacksync gives you Real-time where Weld offers Scheduled. On transformation support, Stacksync gives you Advanced where Weld offers Basic.

Weld is the better fit for value-conscious teams using SQL and dbt. Stacksync is the better fit for enterprise real-time bidirectional sync.

  • Weld fits best

    Value-conscious teams using SQL and dbt

  • Stacksync fits best

    Enterprise real-time bidirectional sync

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Weld 8.7/10 Visit ↗ Stacksync 8.2/10 Visit ↗
At a glance
Editor score 8.7 8.2
Ranking #6 in Reverse ETL Tools #11 in Reverse ETL Tools
Best for Value-conscious teams using SQL and dbt Enterprise real-time bidirectional sync
Pricing model Paid Paid
Starting price $99/mo (best) $1,000/mo
Free plan — —
Free trial 14 days 14 days
Free trial length 14 days · no card needed 14 days · no card needed
Deployment Cloud Cloud, Self-hosted
Platforms Web Web
Support Email, Live chat, Docs · 24/7 Email, Live chat, Phone, Community, Docs · 24/7
Compliance SOC 2, ISO 27001, GDPR, HIPAA, SSO/SAML, 2FA SOC 2, ISO 27001, GDPR, HIPAA, SSO/SAML, 2FA
Integrations 300+ integrations 1,000+ integrations
Built for Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Weld 1/1 · Stacksync 1/1
Reverse sync ✓ ✓
Specs
Sync frequency Scheduled Real-time
Destination connectors 1 Not checked yet
Warehouse sources 2 Not checked yet
Transformation support Basic Advanced
Destination categories CRM, spreadsheets, email marketing tools, ad platforms, and apps CRM, ERP, databases, SaaS applications, data warehouses, streaming bus
Our review
Pros
  • Starts at $99 per month with annual billing
  • Supports reverse ETL, SQL, dbt, CDC, retries, and orchestration
  • Connects with CRMs, ad platforms, warehouses, spreadsheets, and databases
  • 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
Cons
  • Basic includes only 2 connectors and 1 destination
  • Basic syncs daily; faster frequencies require higher tiers
  • Transformation support is basic compared with broader data platforms
  • 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
Our verdict

Weld is a cloud data integration platform for data teams that move information between SaaS applications, files, databases, APIs, warehouses, and operational tools. Its core workflow combines managed ETL and ELT connectors with reverse…

Read the review →

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…

Read the review →
  1. WeldReverse ETL Tools 8.714-day trial
  2. StacksyncReverse ETL Tools 8.214-day trial

Strengths and trade-offs

  • Weld — where it wins

    • Starts at $99 per month with annual billing
    • Supports reverse ETL, SQL, dbt, CDC, retries, and orchestration
    • Connects with CRMs, ad platforms, warehouses, spreadsheets, and databases

    Where it doesn't

    • Basic includes only 2 connectors and 1 destination
    • Basic syncs daily; faster frequencies require higher tiers
    • Transformation support is basic compared with broader data platforms

  • Stacksync — 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

More comparisons

All reverse ETL tools comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update