
Pipedrive
Zoho CRM
Freshsales CRM
Microsoft Dynamics
Alore CRM
WORKetc CRM
Insightly
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.
Smarty
Zipcodestack
PostalDataPI
Geoco.io
Melissa Data Quality
Loqate
usZIPCodes.org
REST API for US ZIP, ZIP+4, and Canadian postal codes. Single unified endpoint covers address validation and standardization, radius search (centroid haversine and true spatial polygon intersection), point-to-point distance, autocomplete/typeah

Which is more popular?
Based on our record, Copper seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
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ZIP
ZIP Code API
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|---|---|---|
| Website | copper.com | zip-codes.com |
| Pricing | — | |
| Company | Startup from the United States | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of Copper yet.
API for US ZIP, ZIP+4, and Canadian postal code data. One unified endpoint set covers North America — no separate APIs by country or data type. What it does Address validation and standardization — production-grade parser with ZIP+4 append, refreshed monthly Radius search — centroid haversine and...
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
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How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using Copper and ZIP Code API. 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 ZIP Code API 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
Tracking ZIP Code API since May 2026.
When comparing Copper and ZIP Code API, you can also consider the following products.

Sales pipeline software that gets you organized. Helps you focus on the right deals, so easy to use that salespeople just love it. Great for small teams.
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Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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A full-fledged CRM for high-velocity sales teams.
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
Compare PostalDataPI to Copper or ZIP Code API: