
Synapse
DockbarX
Keypirinha
Listary
Gnome-Pie
Ulauncher
Cairo-Dock
Simple, sleek, swift, smart. Do. GNOME Do allows you to quickly search for many items present on your desktop or the web, and perform useful actions on those items. GNOME Do is inspired by Quicksilver & GNOME Launch Box.
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?
Website, pricing, platforms and company facts side by side.
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ZIP
ZIP Code API
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|---|---|---|
| Website | launchpad.net | zip-codes.com |
| Company | — | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of Gnome Do 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
Gnome Do is recommended for Linux users who enjoy customizing their workflow, prefer keyboard-driven interfaces, and are looking for a powerful and flexible application launcher to boost their productivity. It is particularly suited for developers, IT professionals, and power users who frequently work with multiple applications and need to streamline their desktop interactions.
Overall verdict
Why this product is good
Recommended for
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Gnome Do Review with Docky feature
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How often each product is chosen within a category, 0–100% relative to the other.

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DockbarX is a standalone dock that groups and launches applications.
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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A lightning fast and flexible keystroke launcher for Windows. No installation required (portable).
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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