As far as apps, people sometimes use Anki and get a card pack (commonly the most used words or phrases), but that is more of a supplementary tool.
Duolingo also has a website, if installing the app is an issue. Just use adblock in this case.
Libre culture is all about empowering people. While the general philosophy stems greatly from the free software movement, libre culture is much broader and encompasses other aspects of culture such as music, movies, food, technology, etc.
Some beliefs include but aren't limited to:
Check out this link for more.
I've looked into the ways other forums handle rules, and I've distilled their policies down into two simple ideas.
Please show common courtesy: Let's make this community one that people want to be a part of.
Please keep posts generally on topic
No NSFW content
When sharing a Libre project, please include the name of its license in the title. For example: “Project name and summary (GPL-3.0)”
Libre culture is a very very broad topic, and while it's perfectly okay for a conversation to stray, I do ask that we keep things generally on topic.
Community icon is from Wikimedia Commons and is public domain.
As far as apps, people sometimes use Anki and get a card pack (commonly the most used words or phrases), but that is more of a supplementary tool.
Duolingo also has a website, if installing the app is an issue. Just use adblock in this case.
Duolinguo feels more like a very annoying ad than a learning tool, often under-explaining what it tries to teach while heavily penalizing and shaming the user for getting things wrong.
What I would suggest, other than hiring an actual teacher, would be to immerse yourself in works from their language, such as music, comics, books, movies, and so on. Also, Spain's Real Academia Española has a dictionary+conjugator site that is VERY helpful, even for "dialects" such as the Latin America variations (link for the tool is dle.rae.es). Finding someone to try to talk to in Spanish may also help, although getting to know some of the grammar beforehand is advised.
Now, as for either free or FOSS programs specifically for learning the language, sadly, I'm not aware of any.
Your complaints about duolingo are valid but can be mitigated to an extent.
Setting up an ad blocking dns on your phone greatly improves many apps.
As far as being too penalizing, you can get rid of the heart restriction by creating a classroom in duolingo and adding yourself to it. This has to be done in their browser interface, but once done will remove hearts in the app as well.
I just web searched for 'librivox spanish', and what do you know, there are 34 pages of Public Domain spanish language books to choose from and play as background sounds to your life.
To help hear real world examples of inflection, intonation and pronunciation, and pick it up passively.
:-)
Of course to be used with another method of learning the word meanings, a structured course or speaking live with a Spanish speaker.
Some great options here:
https://opensource.com/article/20/2/open-education-spanish
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And, get some CC Spanish music to fire you up, my favourite is:
Xera - Lliendes
I took a year of ไทย classes after work & that was enough to go out & start conversations with strangers. Classes where they speak your native tongue can be invaluable since you can ask very specific grammar questions most native speakers don’t how to answer & the class puts a social pressure on you to keep up. Speaking with natives & listening to media can help a lot.
Do you happen to live near a community college? Or is that not what you mean by on your own?
Software and books exist for this. That’s a more likely interpretation.