Reposts are fine after a year or so but this project had a lot of discussion in the last year, so the current thread counts as a dupe by HN's standard. See https://news.ycombinator.com/newsfaq.html.

In 2023 Organic Maps got its first million users - https://news.ycombinator.com/item?id=38746187 - Dec 2023 (88 comments)

I took a took week trip with Organic Maps - https://news.ycombinator.com/item?id=37975725 - Oct 2023 (1 comment)

Organic Maps: An open-source maps app that doesn't suck - https://news.ycombinator.com/item?id=37592712 - Sept 2023 (128 comments)

Organic Maps - https://news.ycombinator.com/item?id=37347447 - Sept 2023 (485 comments)

OrganicMaps is Android and iOS offline maps for travel without trackers or ads - https://news.ycombinator.com/item?id=27576882 - June 2021 (116 comments)

Organicmaps: Android and iOS offline maps app for travelers, tourists, hikers - https://news.ycombinator.com/item?id=27543012 - June 2021 (113 comments)