
Pipedrive
Zoho CRM
Freshsales CRM
Alore CRM
WORKetc CRM
Insightly
SugarCRM
Copper (formerly ProsperWorks) is easy-to-use customer relationship management for small businesses. Capture contacts and sales leads direct from Gmail with our simple CRM.

Zapier
Workato
MuleSoft
Make.com
Heroku
Boomi
Circular Sync
The first AI-native Enterprise Integration Platform.

Which is more popular?
Stacksync might be a bit more popular than Copper. We know about 1 link to it since March 2021 and only 1 link to Copper.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | copper.com | stacksync.com |
| Pricing | ||
| Platforms | — | |
| Company | Startup from the United States | Startup from the United States · 10 - 19 employees · 2022 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Copper yet.
Real-time sync, workflow automation, event queues, databases, EDI, and monitoring, without stitching together MuleSoft, Fivetran, Kafka, and Zapier. Keep your systems perfectly aligned with Stacksync’s reliable two-way data synchronization. Stop building brittle API scripts. With Stacksync, you...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Copper is highly recommended for small to medium-sized businesses, teams that rely on Google Workspace, and organizations looking for an intuitive and easy-to-use CRM solution. It's particularly suited for businesses looking to improve their sales processes and collaboration efficiency without the complexity of more intensive CRM systems.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
How it Works - Copper (formerly ProsperWorks) Crm for Google
More videos
Enrich user signups in real-time with LinkedIn data using Stacksync Workflows | HubSpot, Supabase
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Copper and Stacksync.
Stacksync's answer:
Stacksync's answer:
Stacksync is built for teams that need reliable, real-time data sync at scale. Unlike automation or batch ETL tools, it provides sub-second, bidirectional synchronization without API limits, complex scripts, or per-row pricing surprises.
Stacksync's answer:
Engineering, data, and operations teams at mid-market and enterprise companies that need to keep CRMs, ERPs, and databases perfectly in sync in real time.
Stacksync's answer:
Stacksync was created to solve a common problem faced by data and engineering teams: keeping business systems in sync without relying on fragile scripts, slow batch jobs, or API limitations. The goal was to build a reliable, real-time sync layer that works directly at the data level and scales with modern companies.
Stacksync's answer:
Stacksync's answer:
Mid-market and enterprise companies in SaaS, e-commerce, and operations-heavy industries - Vimeo - IDEXX - MedPro Healthcare Staffing - Eko - UbiCloud - Codility - Acertus - Syringa - Truora - Streaam - SEALSQ - Rinsed - IA Capital Group - Meter - Golden Pear Funding
Share your experience with using Copper and Stacksync. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Are you looking for a CRM system that is similar to Copper CRM but offers more features? There are a number of great CRM systems available that have a lot of the same features as Copper CRM. In this blog post, we’ll...
In Feb 2021, Copper CRM acquired Sherlock. This engagement analytics platform visualizes the entire customer journey and provides information about their intent, engagement, and product usage. With Sherlock, Copper...
The 14 best Copper alternative solutions mentioned in this CRM comparison for small businesses offer the same or better functionality than Copper CRM. Unlike Copper, these tools not only integrate with G Suite but a...
We have no reviews of Stacksync yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


I've seen Copper CRM work quite well for contractors (assuming that your team is using or open to using Google Workspace - if you're not using Google Workspace, I'd probably ask why not? But then recommend you to use Pipedrive if you're... Source: almost 4 years ago
Three years and one Y Combinator batch later, Stacksync syncs millions of records across 200+ enterprise systems with sub-second latency. I want to explain why this problem is as hard as it is, because most engineering teams... - Source: dev.to / 5 months ago
When comparing Copper and Stacksync, you can also consider the following products.

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Experts agree - we're the leader. Forrester Research names Workato a Leader in iPaaS for Dynamic Integration. Get the report. Gartner recognizes Workato as a “Cool Vendor in Social Software and Collaboration”.
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A full-fledged CRM for high-velocity sales teams.
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MuleSoft provides an integration platform for connecting any application, data source or API, whether in the cloud or on-premises.
Compare MuleSoft to Copper or Stacksync: