Software Alternatives & Startups

FastAPI VS Rainway

Compare FastAPI VS Rainway and see what are their differences

FastAPI

FastAPI is an Open Source, modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints.

Rating
5.0 · 1 review
Pricing
Open source Free
Rainway

Rainway is a free video game streaming service that allows you to play your favourite games on any device.

Rating
0 reviews
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, FastAPI seems to be a lot more popular than Rainway. While we know about 318 links to FastAPI, we've tracked only 14 mentions of Rainway.

social mentions
318 vs 14
Developer Tools popularity
100% vs 0%
alternatives listed
240+ vs 85

Base details

Website, pricing, platforms and company facts side by side.

FastAPI
Rainway
Website fastapi.tiangolo.com rainway.com
Pricing
Open source Free
—
Company Startup from Colombia Startup from the United States · 10 - 19 employees · 2017
Listed in

Features and specs

What each product offers, as listed by its team.

FastAPI 7 features
Rainway 5 features
  • High Performance
    Built on Starlette and Pydantic, FastAPI is one of the fastest frameworks for Python, providing high performance due to its asynchronous request handling.
  • Automatic Interactive API Documentation
    FastAPI automatically generates interactive API documentation via Swagger UI and ReDoc, which are very helpful for development and testing.
  • Type Checking and Validation
    With Pydantic models and Python type hints, FastAPI provides automatic data validation and type checking, reducing the chance of runtime errors.
  • Ease of Use
    Its syntax and design make it easy to learn for Python developers, offering a smooth development experience while reducing boilerplate code.
  • Asynchronous Support
    FastAPI supports asynchronous programming, allowing for better performance for I/O-bound operations, making it optimal for handling many simultaneous connections.
  • Extensive Documentation
    It has comprehensive and well-structured documentation, which is very useful for both beginners and advanced users.
  • Community and Ecosystem
    FastAPI has a growing community and ecosystem, with many plugins and integrations available to extend its functionality.

Possible disadvantages

  • Learning Curve for Asynchronous Programming
    Although FastAPI itself is easy to learn, grasping the concepts of asynchronous programming in Python can be challenging for beginners.
  • Complex Dependencies
    Using Pydantic for advanced validation can make the request models complex, requiring a deeper understanding of Pydantic and its functionalities.
  • Early Stage Libraries
    Some third-party libraries and extensions specifically tailored for FastAPI might still be in early stages of development and lack long-term stability.
  • Limited Real-World Examples
    Although the documentation is extensive, there might be limited real-world examples and case studies readily available compared to more mature frameworks.
  • Deployment Complexity
    Deploying FastAPI applications might be more complex in comparison to traditional synchronous frameworks, mainly due to the need for asynchronous server setups.
  • Accessibility
    Rainway allows you to stream your PC games to various devices, including phones, tablets, and other PCs, enabling you to play your games anywhere.
  • Platform Compatibility
    It is compatible with multiple operating systems and platforms, such as Windows, Android, iOS, and web browsers, providing versatile gaming options.
  • Free Service
    Rainway is free to use, removing the barrier of entry for users who might be reluctant to pay for a streaming service.
  • Low Latency
    The platform aims to offer low-latency streaming, making the gameplay experience smoother and more enjoyable.
  • User-Friendly Interface
    The interface is designed to be intuitive and easy to navigate, making it accessible for users of all technical skill levels.

Possible disadvantages

  • Internet Dependency
    A strong and stable internet connection is required for optimal performance, which can be a limiting factor in areas with poor internet infrastructure.
  • Hardware Requirements
    The performance of Rainway heavily depends on the power of your gaming PC, which may limit its effectiveness for users with lower-end hardware.
  • Potential Lag
    Despite aiming for low latency, users may occasionally experience lag or disruptions, particularly during high-demand periods or due to network issues.
  • Limited to PC Games
    Rainway is designed for streaming PC games, so it doesn’t support console-exclusive games, which limits its use for console gamers.
  • Privacy Concerns
    Since Rainway involves streaming data from your PC to other devices, there may be potential privacy concerns related to data security and unauthorized access.

Analysis

An editorial look at what each product does well and who it suits.

FastAPI
Rainway

Overall verdict

  • FastAPI is widely regarded as a good choice, especially for applications that require high performance, scalability, and modern Python features. It is suitable for both simple and complex projects, making it a versatile tool in the web development ecosystem.

Why this product is good

  • FastAPI is a modern, fast (high-performance), web framework for building APIs with Python 3.7+ based on standard Python type hints. It is built on top of Starlette for web framework capabilities and Pydantic for data validation and settings management. FastAPI is known for its excellent performance, automatic generation of interactive API documentation (with Swagger and Redoc), and support for asynchronous programming. Developers appreciate its ease of use, detailed documentation, and helpful error messages.

Recommended for

  • Developers building RESTful APIs
  • Teams looking for a high-performance ASGI-based web framework
  • Projects that require asynchronous programming capabilities
  • Applications needing automatic generation of interactive API documentation
  • Python developers who prefer utilizing type hints for code clarity and validation

Overall verdict

  • Rainway is generally considered a good option for gamers looking to stream their PC games to other devices.

Why this product is good

  • Rainway offers a user-friendly interface, low-latency streaming, and wide device compatibility, allowing users to play games on various platforms such as smartphones, tablets, and even smart TVs. It supports high-quality graphics and smooth gameplay, making it an attractive choice for gamers who want flexibility in gaming locations. Additionally, it is free to use, which adds to its appeal.

Recommended for

    Rainway is recommended for PC gamers who want to play their games on different devices without being restricted to their primary gaming rig. It's ideal for those who value convenience and accessibility in their gaming experience, especially individuals who often travel or share gaming equipment.

Videos

Walkthroughs and reviews on video.

FastAPI 3 videos + Add
Rainway 3 videos + Add

FastAPI from the ground up

More videos

  • - 30 Days of Python - Day 14 - Web App with Flask, FastAPI, ngrok, and Invictify - Python TUTORIAL
  • - [PT] Python - API com FastAPI - Chat | twitch.tv/codeshow

Rainway 1.0 Launch Review - Early 2019

More videos

  • - Rainway Beta - First Impressions & Gameplay 2018
  • - Rainway Basics Part 1: Setting up Rainway

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
FastAPI
Rainway
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%
0% 0%
100% 100%

User comments

Share your experience with using FastAPI and Rainway. For example, how are they different and which one is better?

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

FastAPI 5.0 · 1 review
Rainway no reviews yet
  • Rated 5/5 by Kurslog team
    SaaSHub review
    · Apr 2026

    When our backend team needs to build services for data parsing, aggregators, or high-load APIs, FastAPI is our absolute go-to choice. It completely lives up to its name-development speed is outstanding. The...

  • The 20 Best Laravel Alternatives for Web Development
    tms-outsource.com · Jan 2024

    FastAPI, as the name hints, is a swift mover. Built on Starlette, it’s all about speed and performance with Python. Crafting API masterpieces at the speed of light, now that’s something.

  • 25 Python Frameworks to Master
    kinsta.com · Oct 2023

    Since its release in 2018, it has rapidly gained popularity due to its great performance and simplicity. In fact, according to PyPi Stats, FastAPI has over 9 million monthly downloads, surpassing even full-stack...

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  • Top Remote Desktop Software for Gaming
    cloudzy.com · Feb 2024

    Rainway cannot guarantee a high-quality and latency-free gaming experience. The quality of your game streaming with Rainway entirely depends on your internet connection. The better your connection is, the faster your...

  • Moonlight game streaming alternatives
    androidgram.com · Oct 2022

    Rainway game streaming service is a very recent release. The application allows you to stream the games on your Windows 10 computer through any supported device via the internet. The service is free with no ads...

  • 11 Best Parsec Alternatives & Similar Apps
    www.regendus.com · Apr 2022

    Sometimes you will run into issues like slow connections, some bugs, and other technical problems. Still, Rainway is an excellent cloud gaming platform for almost any operating system. Thus, there is no reason to not...

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

FastAPI 318 mentions
Rainway 14 mentions
  • How to deploy a FastAPI app on Ownkube
    FastAPI is fast to run locally with uvicorn app.main:app --reload, and the production version of that command is not much longer. Production adds three things: a process manager that restarts a crashed worker, config read from... - Source: dev.to / 10 days ago
  • Mémoire des Anciens: The Grimoire of Souls
    Backend: a FastAPI app, started with uvicorn main:app --port 8000. - Source: dev.to / 11 days ago
  • Why I'm building GwinG, a language exchange app for awkward hellos
    Under the hood it's Flutter on the client and FastAPI with PostgreSQL on the server. WebSockets for realtime, WebRTC for calls, object storage for media, and small services for speech and translation. Android, iOS, Windows and Linux. The... - Source: dev.to / 22 days ago

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  • iPad Pro M2
    Code-server https://github.com/coder/code-server works fairly well and can be saved to the home screen as a web applet to get rid of the browser URL bar. Their are a few UI issues related to touch but it has server well enough for some... - Source: Hacker News / about 4 years ago
  • why you shouldn't buy shadow.
    Rent your Server own at Google, Amazon or even Microsoft Microsoft has also a Windows in the Cloud Service There is Amazon with LUNA if you only want to play There is NVidia GForce now There is STADIA (Which I use by myself. Better... Source: about 4 years ago
  • Rainway is Dead
    We just don’t offer support anymore. Our business is entirely focused on B2B offerings now https://rainway.com/. Source: over 4 years ago

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Alternatives to FastAPI and Rainway

When comparing FastAPI and Rainway, you can also consider the following products.