🆚 Foundation vs. UIKit
- 📈 Foundation is noticeably more popular than UIKit.
- 🌎 Foundation is more popular in the United States, Germany, and the United Kingdom.
- 🌍 UIKit is more popular in Italy, Spain, and Russia.
Statistics based on 3.5M+ analyzed websites. About this data
FoundationType
User interface framework
User interface framework
About
Foundation is an open-source responsive framework that provides a customizable grid system, a library of UI components (Building Blocks), 
HTML templates, and 
JavaScript plugins.
It includes keyboard accessibility, screen-reader support, ARIA attributes, device-adaptive visibility controls, and two types of grids (Flexbox and 
CSS Grid) to enable advanced layout control.
SassHeadquarters
Campbell, California, United States
Hamburg, Germany
Pricing
Free ✔️Open source
Free ✔️Open source
Categories
UI Frameworks › Rank #4
UI Frameworks › Rank #6
Popularity
Determined by the number of sites using each technology.
The Foundation UI framework is 1.4 times more popular than UIKit.
Total websites
Market share
UI Frameworks
Popularity by country
Determined by the number of sites detected from each country.
Foundation is more popular in the United States, Germany, and the United Kingdom, while UIKit is more popular in Italy, Spain, and Russia.
United States
Germany
United Kingdom
Netherlands
Italy
France
Australia
Spain
Canada
Russia
Awards
- 🥉 Third most popular in the Philippines in the UI Frameworks category.
- 🥉 Third most popular in Liechtenstein in the UI Frameworks category.
- ⭐ 4th most popular in the United States in the UI Frameworks category.
- ⭐ 4th most popular in Germany in the UI Frameworks category.
- ⭐ 4th most popular in the United Kingdom in the UI Frameworks category.
- 🥉 Third most popular in Greece in the UI Frameworks category.
- 🥉 Third most popular in Ukraine in the UI Frameworks category.
- 🥉 Third most popular in Belarus in the UI Frameworks category.
- 🥉 Third most popular in Libya in the UI Frameworks category.
- 🥉 Third most popular in Afghanistan in the UI Frameworks category.
Popularity by domain category
Determined by the number of sites in each category.
Foundation is more popular among sites focused on business, marketing and merchandising, and online shopping, while UIKit is more commonly used on restaurants sites.
Business
Marketing/Merchandising
Online Shopping
Education/Reference
Travel
Internet Services
Non-Profit/Advocacy/NGO
Health
Blogs/Wiki
Entertainment
Top sites
Top-ranked sites that use these technologies.
Compare alternatives
Technologies with similar characteristics.
Bootstrap
Tailwind CSS
Bulma
Spectre.css🗃️ About This Data
- We evaluate the popularity of technologies based on the number of websites where we detect their usage.
- Technologies without a detectable web footprint, and those we do not track, are not reflected in the calculated market share.
- This report is based on the analysis of 3,512,920 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.