Peakview is a peak identification app. Through augmented reality (AR) technology Peakview combines mountain names with the camera preview. It displays peak names on your mobile device's screen. When you go hiking this app can help you to understand your environment. You can identify the mountains surrounding you. It is a good tool for climbers.
　
Before using this application please read the following user's manual (PDF).
https://www.peakviewer.com/guide/Peakview_EN_20191016.pdf
Moreover you can watch the following video.
https://www.youtube.com/watch?v=GkEb13zHNpA
　
Paid version link: https://play.google.com/store/apps/details?id=com.peakviewer.tw
　
■ Currently supported areas (can be added or deleted from "Settings" → "Selection of country/region")
□ Americas: Canada; United States
□ Asia: Hong Kong Macau; Japan [complete]; Taiwan [complete]
□ Europe: There is support throughout Europe. The information in Germany Ireland Liechtenstein Switzerland and the United Kingdom is relatively complete.
□ Oceania: New Zealand [complete]