
FlightGear
Birds of Steel
Ace Combat 6: Fire of Liberation
Orbiter
Digital Combat Simulator
Microsoft Flight Simulator X
IL-2 Sturmovik: 1946
The world's most advanced flight simulator just got an upgrade. Download the free demo today for Windows, macOS, & Linux.
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, X-Plane seems to be more popular. It has been mentioned 5 times 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 | x-plane.com | zip-codes.com |
| Company | — | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of X-Plane 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.

No analysis of X-Plane yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Is X-Plane 11 Worth It In 2020? [X-Plane 11 Review]
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How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using X-Plane 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.

X-Plane and FlightGear are easily the most realistic but also the most complex. X-Plane costs $59.99 whereas FlightGear is free but X-Plane is more polished and easier to get going with than FlightGear.
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Recommendations tracked on public social media and blogs since March 2021.

Oh, Thanks ! I wasn't expecting to be able to download on the WayBackMachine I tried on the old x-plane.com website with no success but it worked on boostair.com ! Source: about 4 years ago
Haha, yes I know I can just buy it from x-plane.com, but I was just wondering what the community had to say. Source: about 4 years ago
Has anybody gotten the "transaction failed (error 47)" message when trying to check out on x-plane.com? I've been trying to buy XP12 and I repeatedly get hit with this message :(. Source: about 4 years ago
Tracking ZIP Code API since May 2026.
When comparing X-Plane and ZIP Code API, you can also consider the following products.

The FlightGear flight simulator project is an open-source, multi-platform, cooperative flight simulator development project. It also simulates space flight in Earth's orbit. It's flight dynamics engine (JSBSim) is used in a 2015 NASA benchmark.
Compare FlightGear to X-Plane or ZIP Code API:

Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
Compare Smarty to X-Plane or ZIP Code API:

Birds of Steel is developed by Gaijin Entertainment for PlayStation and Xbox.
Compare Birds of Steel to X-Plane or ZIP Code API:

Free Zip Code API - Free Postal Code Validation | Zipcodestack
Compare Zipcodestack to X-Plane or ZIP Code API:

Ace Combat 6: Fire of Liberation is an Action, Single and Multiplayer Flight Simulation developed by Project Aces and published by Namco Bandai Games.
Compare Ace Combat 6: Fire of Liberation to X-Plane or ZIP Code API:

The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
Compare PostalDataPI to X-Plane or ZIP Code API: