Software Alternatives, Accelerators & Startups

Knock VS Physion

Compare Knock VS Physion and see what are their differences

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.

Knock logo Knock

Sell your home in 6 weeks or less

Physion logo Physion

Browser-based 2D physics sandbox for teaching and tinkering
  • Knock Landing page
    Landing page //
    2023-06-28
  • Physion Landing page
    Landing page //
    2022-06-16
  • Physion
    Image date //
    2026-08-06
  • Physion
    Image date //
    2026-08-06
  • Physion
    Image date //
    2026-08-06
  • Physion
    Image date //
    2026-08-06

Physion is a free browser-based 2D physics simulator. Draw rigid bodies (circles, rectangles, capsules, polygons, gears, text and polylines), connect them with joints and springs, then simulate liquids, soft bodies and particle emitters. Boolean shape operations and a scriptable laser raycast are built in. Any object can carry a JavaScript node script, so scenes can react to collisions, measure themselves or drive their own motors.

Nothing to install: it runs in the browser, which is what makes it usable on locked-down school hardware and Chromebooks.

Free to use, with optional paid plans.

Knock features and specs

  • Streamlined Buying Process
    Knock simplifies the process of buying a new home by allowing users to make competitive offers without the contingency of selling their current home first.
  • Home Equity Access
    Users can access their home equity before selling, which can be useful for securing a new mortgage or funding the move.
  • Flexible Move Timing
    Knock offers flexibility in timing the move, enabling users to buy and move into a new home before they sell their old one.
  • Dedicated Support
    The service provides dedicated support from real estate experts, which can help in navigating complex transactions.

Possible disadvantages of Knock

  • Service Fees
    Knock charges a service fee, which could be an additional cost on top of traditional real estate transaction fees.
  • Market Limitations
    The service is not available in all real estate markets, limiting accessibility for some potential users.
  • Complexity of Transactions
    Though Knock simplifies parts of the process, managing two transactions (buying a new home and selling the old one) can still be complex.
  • Qualification Requirements
    Knock has specific financial and credit requirements that users must meet to qualify for their services.

Physion features and specs

  • User-Friendly Interface
    Physion offers a straightforward and intuitive user interface that makes it accessible for people of all ages and experience levels to create and simulate 2D physics scenarios.
  • Educational Tool
    Physion is an excellent educational tool for teaching and learning fundamental physics concepts through hands-on simulation and experimentation.
  • Versatile Simulation Capabilities
    The software provides a range of tools and elements that allow users to simulate various physics phenomena, such as collisions, gravity, and friction.
  • Interactive Features
    Physion includes interactive features that enable users to manipulate objects and parameters in real-time to observe different outcomes from experiments.
  • Community Resources
    The platform has an active community that shares tutorials, simulation models, and problem-solving tips which enhances the learning process.

Knock videos

KNOCK KNOCK MOVIE REVIEW | Double Toasted

More videos:

  • Review - Knock Knock (2015) - Movie Review
  • Review - Epic RANT - Knock Knock (2015) Movie Review

Physion videos

Liquids and Soft Bodies Simulation

More videos:

  • Demo - Mini Marble Race

Category Popularity

0-100% (relative to Knock and Physion)
Personal Finance
100 100%
0% 0
2D Simulator
0 0%
100% 100
Tech
100 100%
0% 0
Games
0 0%
100% 100

User comments

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Social recommendations and mentions

Based on our record, Knock should be more popular than Physion. It has been mentiond 3 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Knock mentions (3)

  • How to sell our house and buy a new one very quickly in another state?
    There are house swap programs out there like knock.com and orchard that tap into your current equity to make a purchase first then sell scenario doable. Source: over 3 years ago
  • Testing Patterns And Strategies
    Our goal at Knock is to empower people to move freely. A large part of acheiving that goal is to make real estate transactions as easy and seamless as possible for our customers. Real estate transactions are very complicated. Calling them a "big ball of mud" is being gracious. If we could sum up such transactions up in one image, it would be the image of Charlie Day explaining how a person named Pepe Silvia... - Source: dev.to / about 5 years ago
  • Knock and Open Source
    Knock.com is built with Open Source Software (OSS). It permeates our technology stack from the interactive website all the way through to the services and systems that power our infrastructure. We depend on OSS, and we are excited to start contributing back to our community. Doing so aligns well with a couple of our core values, which we call POPSICLE, "people first" and โ€œopenโ€:. - Source: dev.to / about 5 years ago

Physion mentions (2)

  • Time flies, because we're spending almost a quarter of each day scrolling
    'time scrolling by' with alias of clock time displayed everytime 'enter'/'return' pressed[0a][0b] would seem a bit easier to do than pop-up physics demo with 'clock displaying time flying through demo virtual space[1]. Although the later is bit more visually presentable/interesting. [0a] : https://askubuntu.com/questions/360063/how-to-show-a-running-clock-in-terminal-before-the-command-prompt [0b] :... - Source: Hacker News / over 2 years ago
  • Physion: Interactive Physics Simulations
    Please give it a try at https://physion.net. Source: over 4 years ago

What are some alternatives?

When comparing Knock and Physion, you can also consider the following products

HelloClever.co - We reckon itโ€™s time to get Clever and get some bank balance back in your life. Sign up in minutes to supercharge your money management.

SimPhy - Interactive 2D & 3D Physics simulation software

HelloHome.co - Sell your home for a flat fee with a full-service REALTORยฎ

Algodoo - Algodoo is a 2D simulator freeware product designed as a physics learning tool. It was originally created by Emil Emerfeldt as part of his masterโ€™s thesis in 2008. Read more about Algodoo.

Nested - A guaranteed price for your home

Akinator - Akinator is an entertainment app that acts like a digital genie that can read your mind. The game will ask you a few questions about the character you have chosen, and it will attempt to guess the character from your provided answers.