Arc App might be a bit more popular than Pyfl. We know about 1 link to it since March 2021 and only 1 link to Pyfl. 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 been quite happy with Genius Scan (https://thegrizzlylabs.com/), but I mostly scan printed material rather than handwriting. Source: almost 2 years ago
I'm using http://bigpaua.com/arcapp on my iPhone, and even the GPX track it records in the background is good enough to do some mapping, for example when I'm hiking or biking. Source: over 2 years ago
Mapstr - Your places, your world!
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Wicard - Share your favorite places among friends
Exist - Track everything in one place, understand your life.
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Swarm - Swarm lets you earn prizes and compete with friends based on the places you go.