
Code.org
Godot Engine
GDevelop
Invent With Python
Snap
Processing
Unity
Scratch is the programming language & online community where young people create stories, games, & animations.

energycalculator.blog
WattSized
CampPowerCalc
EcoEnergyCalc
CHEA NEM12 CSV Microtools
HelioScope
Solargraf
Free, accurate calculators for home energy savings — solar payback, heat pumps, EV charging, appliance running costs and more. No signup.

Which is more popular?
Based on our record, Scratch seems to be more popular. It has been mentioned 579 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | scratch.mit.edu | howmuchwatts.com |
| Pricing | ||
| Company | 2007 | — |
| Listed in |
What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Scratch and HowMuchWatts.
HowMuchWatts's answer:
HowMuchWatts is a free suite of 50+ home energy calculators - no signup, no ads gating the result. Every calculator shows its formula and updates live as you type, so you can see exactly how the number was reached rather than trusting a black box. It also includes an appliance power-consumption reference chart and plain-English guides (solar payback, heat pump vs gas, EV charging costs) that pair with the calculators instead of just linking out.
HowMuchWatts's answer:
Most energy calculators are either buried in signup walls, ad-heavy, or give a single number with no way to check the math. HowMuchWatts is: - Free, no account needed - Transparent - the formula is shown alongside every result - Focused - 50+ calculators covering solar, heat pumps, EVs, and appliances specifically, not a generic all-purpose calculator site - Embeddable - any blog can drop a calculator into a post for free
HowMuchWatts's answer:
Homeowners and renters trying to make a specific energy decision - is solar worth it, should I switch to a heat pump, what will an EV cost to charge, what is this appliance actually costing me. Secondary audience: bloggers and content sites in the home/energy space who embed the calculators in their own articles.
HowMuchWatts's answer:
Built out of frustration with existing energy calculators - they were either oversimplified, buried behind email walls, or impossible to verify. HowMuchWatts started as a handful of calculators that show their formula and grew into a 50+ calculator suite covering solar, heat pumps, EVs, and everyday appliances, plus guides and a reference chart for the underlying data.
Share your experience with using Scratch and HowMuchWatts. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Scratch lets students create interactive stories, games, and animations. The coding projects allow students to experiment and express their ideas, developing 21st-century skills like computational thinking and...
It can even permit anyone to access its junior program through which kids can learn how to make any app by taking their focus on the study related to programming. Scratch also comes with facilitating users with the...
Scratch, created by MIT students, teaches coding by allowing students to create tales, games, and animations using programming blocks. There is a vibrant online community as well as a step-by-step tutorial to assist...
We have no reviews of HowMuchWatts yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Here's how teaching kids goes without scratch: "This is python, we use it to do professional development work. Here's VS code, we use it to do professional development work. Let's learn them." 6 year olds: "Okay!" Proceeds to mangle... - Source: Hacker News / 5 days ago
What I wonder is: why has nobody noticed that code editors lack a concept of 0? When you're writing code, you can express any concept except that of an unfilled hole. We've rearranged every part of the coding process in a twisted-up way,... - Source: Hacker News / 20 days ago
Sounds like Scratch: https://scratch.mit.edu/. - Source: Hacker News / 4 months ago
Tracking HowMuchWatts since Jul 2026.
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Feature-packed 2D and 3D open source game engine.
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Free calculator for sizing a portable power station
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GDevelop is an open-source game making software designed to be used by everyone.
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Size your off-grid camping and RV power setup in minutes
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