Cast Your Vote might be a bit more popular than Pingo. We know about 2 links to it since March 2021 and only 2 links to Pingo. 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.
I've tried a few, the best one was pingo (https://css-ig.net/pingo). Pingo -s9 gives better results than oxipng with Zopfli, while being usually two order of magnitudes faster. It's also faster than "regular" oxipng while being better. I can usually shave of 15%/20% of the size of png files I encounter. One thing I didn't check is that you might pay that in decoding time, I've never seen anybody talking about that... - Source: Hacker News / about 2 years ago
Pinga, GUI for Pingo (https://css-ig.net/pingo) for lossless photo compression while keeping the metadata. Source: almost 3 years ago
I have never tried using games such as the ones you've listed. The only games I've ever used in my classroom are the ones on icivics.org and Oregon Trail the one year I taught US History. Source: almost 2 years ago
Icivics.org government focused of course, but can be tied in to your lessons at certain points. Source: over 2 years ago
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