Comparing Data App Frameworks

Choosing the right data app framework is crucial when building data apps. With numerous options available, including Streamlit, Dash, Bokeh, Flask, and Django, it’s important to consider several factors to make an informed decision. In this blog post, we will compare these frameworks based on various parameters to help you choose the most suitable one for your project. Beyond ease of use, we will delve into flexibility, performance, ecosystem, and integration capabilities.

Data App Frameworks Types

Let’s dive into the details and explore each framework individually:


Streamlit is a user-friendly framework designed for quick and interactive data app development. It simplifies the process of building data-driven applications and visualizations. With Streamlit, you can create web-based interfaces and share your apps effortlessly. It has gained significant popularity among data scientists and developers due to its ease of use and rapid prototyping capabilities.

To install Streamlit, use the following command:

pip install streamlit

import streamlit as st
def main():
st.title("Hello World!")
st.write("Welcome to Streamlit!")
if __name__ == "__main__":


To run, streamlit run

GitHub Popularity
Streamlit has gained significant popularity with over 70k stars on GitHub.

Streamlit offers a simple and intuitive interface for building data apps quickly.
It supports rapid prototyping and interactive visualization.
Streamlit has a growing community with active contributions and support.

It may have limitations in terms of advanced customization and complex UI components.
Handling large-scale data processing or concurrent user requests may pose performance challenges.


Dash is a powerful framework built on top of Flask and Plotly.js. It enables the creation of interactive web applications with complex data visualizations. Dash provides a wide range of UI components and offers flexibility in designing interactive dashboards. It’s well-suited for building data-driven applications that require real-time updates and complex visualizations.

To install Dash, use the following command:

pip install dash

import dash
from dash import html
app = dash.Dash(__name__)
app.layout = html.Div([
html.H1("Hello World!"),
html.P("Welcome to Dash!")
if __name__ == "__main__":

Run the python file and follow the link from terminal.


GitHub Popularity
Dash has a large community with over 16k stars on GitHub.

Dash provides a higher degree of flexibility and customization, allowing developers to create interactive data visualizations with ease.
It offers a wide range of UI components and integration options.
Dash leverages Plotly.js for powerful data visualization capabilities.

Dash may have a steeper learning curve compared to some other frameworks.
It requires more code compared to Streamlit for similar functionality.


Bokeh is a powerful data visualization library that can be used as a standalone framework for building data apps. It offers a wide range of interactive visualizations and provides server-based capabilities for handling large datasets efficiently. Bokeh empowers developers to create highly customizable and visually appealing data applications.

To install Bokeh, use the following command:

pip install bokeh

from bokeh.plotting import figure, show
from import output_notebook
p = figure(title="Hello World!")
p.text(x=0, y=0, text=["Welcome to Bokeh!"])


GitHub Popularity
Bokeh has a solid presence on GitHub with over 12k stars.

Bokeh focuses on interactive visualizations and provides a comprehensive set of tools for data exploration and customization.
It offers more advanced customization options compared to Streamlit.
Bokeh has a mature ecosystem and integrates seamlessly with popular data science libraries.

Building complex applications with Bokeh may require more coding compared to Streamlit or Dash.
It may have a slightly steeper learning curve for beginners.


Flask is a lightweight web framework that provides flexibility and control over the application structure. It is widely used in web development, including data app development. Flask integrates seamlessly with various Python libraries and offers simplicity in creating web applications. It’s a good choice for smaller-scale data apps or when customization and control are important.

To install Flask, use the following command:

pip install flask

from flask import Flask
app = Flask(__name__)
def hello():
return "Hello World! Welcome to Flask!"
if __name__ == "__main__":


GitHub Popularity
Flask is one of the most popular web frameworks with over 55k stars on GitHub.

Flask is lightweight and provides a high level of flexibility and control over the application structure.
It allows for easy integration with other libraries and frameworks.
Flask has a vast ecosystem of Python libraries and extensions.

Flask requires more manual configuration compared to some other frameworks.
It may not provide as many built-in features as Django for complex data app requirements.


Django is a comprehensive web framework that follows the model-view-controller (MVC) architectural pattern. It provides a robust and scalable environment for building data-driven web applications. Django offers features like user authentication, administration interfaces, and powerful ORM for database management. It’s suitable for large-scale data apps with complex requirements

To install Django, use the following command:

pip install Django

from django.http import HttpResponse
from django.urls import path
from django.urls import include, re_path
from django.core.wsgi import get_wsgi_application
from django.shortcuts import render
def hello(request):
return HttpResponse("Hello World! Welcome to Django!")
urlpatterns = [
re_path(r'^$', hello),
application = get_wsgi_application()
if __name__ == '__main__':
from import execute_from_command_line
execute_from_command_line(['', 'runserver'])

GitHub Popularity
Django is a widely used web framework with over 56k stars on GitHub.

Django is a full-featured web framework that offers extensive customization options.
It provides built-in features for user authentication, admin interfaces, and more.
Django is optimized for scalability and handles high-traffic applications efficiently.

Django may have a steeper learning curve compared to some other frameworks.
It might be overkill for smaller-scale data apps that don’t require the full range of Django features.

Things to Consider While Selecting a Data App Framework

Building a data app requires careful consideration of various factors to ensure its success. When selecting a data app framework, keep the following key aspects in mind:

  • Ease of Use One of the crucial factors to consider is the simplicity and user-friendliness of the framework. A framework that is easy to understand and work with can save valuable development time and enhance productivity. Look for intuitive APIs, clear documentation, and a supportive community.

    For example, Streamlit, a popular framework, offers a simple and declarative syntax that allows developers to build interactive data apps effortlessly. With its straightforward API, even users without extensive coding experience can create compelling applications quickly.

  • Flexibility and Customization: The framework’s flexibility and customization options are essential to meet your specific project requirements. Consider whether the framework allows you to adapt and extend its functionality according to your needs.
    For instance, Dash, a framework built on top of Plotly.js, provides a wide range of interactive visualization components and customization options. It allows you to create dynamic and personalized data visualizations tailored to your application’s needs.
  • Performance and Scalability: Assess the framework’s performance characteristics, particularly if your data app deals with large datasets or expects high user traffic. Look for a framework that offers efficient data processing, optimization techniques, and scalability options. Bokeh, a powerful data visualization library, focuses on high-performance interactive visualizations. It provides tools to efficiently handle large datasets and stream data, ensuring smooth performance even with demanding data apps.
  • Ecosystem and Integration: Consider the framework’s ecosystem and integration capabilities to leverage existing tools, libraries, and extensions. A robust ecosystem allows you to access a wide range of resources and simplifies the integration of other technologies.
    Flask, a popular web framework, benefits from its association with Python and has access to a vast ecosystem of Python libraries and extensions. This makes it easier to integrate data processing, machine learning, and visualization libraries into your data app.

By carefully considering these factors, you can select a data app framework that aligns with your project goals and requirements. Now, let’s summarize the recommendations based on the parameters discussed:

  • If ease of use and quick prototyping are crucial, Streamlit is a great choice. It offers a simple syntax and an intuitive interface, making it suitable for rapid development.
  • For interactive data visualizations and customization options, Dash and Bokeh provide powerful features. Dash is built on Plotly.js, offering a rich ecosystem of visualization components, while Bokeh focuses on interactive visualizations and large dataset handling.
  • If you require a lightweight framework with excellent customization and integration capabilities, Flask is an ideal choice. It allows for high flexibility and seamless integration with various libraries.

Remember that the best framework for your data app depends on the specific requirements of your project. Consider the trade-offs, explore the documentation and examples, and choose the framework that aligns best with your needs. Happy coding and building your next data app!

Note: The popularity metrics mentioned in this blog post are as of the time of writing and may have changed. Please refer to the respective framework’s websites and platforms for the latest updates and metrics.

In conclusion,

selecting the right data app framework is a critical decision that can greatly impact the development process and the overall success of your project. By considering factors such as ease of use, flexibility and customization, performance and scalability, and ecosystem and integration capabilities, you can make an informed decision that aligns with your project goals and requirements.

Streamlit, Dash, Bokeh, Flask, and Django are all powerful frameworks, each with its unique strengths and suitability for different use cases. Streamlit offers simplicity and quick prototyping, Dash and Bokeh excel in interactive visualizations, Flask provides flexibility and integration, and Django offers comprehensive features for robust web applications.

Please explore the documentation, installation instructions, and community support for each framework to gain a deeper understanding of their capabilities and potential. Keep in mind that the popularity and trends of frameworks may change over time, so it’s always a good idea to stay updated with the latest developments in the data app development landscape.

Ultimately, the success of your data app relies on choosing a framework that meets your specific needs, enhances productivity, and delivers an exceptional user experience. Consider the parameters discussed, evaluate your project requirements, and make a well-informed decision.

Happy coding and may your data app journey be filled with innovation, insights, and impactful applications!