This appears to be the primary scanlation group translating the series. You can check their official site or their reader for the latest updates on "Unreachable Girl."
These are the largest community platforms for Spanish readers. You can find the series page on LectorManga by searching for "Unreachable Girl" to see if Chapter 29 has been uploaded by the scanlation teams. This appears to be the primary scanlation group
If you can't find Chapter 29 yet, it may be because the translation is still in progress or the series is on a brief hiatus. These "Raw" chapters usually come out in Korean or Japanese first before the Spanish "Dragon Scan" version is released. If you can't find Chapter 29 yet, it
Based on your search query, here are the most reliable ways to read it: This appears to be the primary scanlation group
Since your query mentioned "APK" and "Android," the most popular app for accessing these chapters is Tachiyomi (or its forks like Mihon), which allows you to install extensions for sites like LectorManga or Dragon Translation.