---
title: "USB-921 - Reviews, Revenue and Downloads in Taiwan | Apple App Store"
description: "APP用來註冊設定USB-921 地震儀, 安裝地震儀用戶, 可接收【P波警報】,【特快報】,【地震快報】,【最大震度】推播通知"
---

# USB-921 — Taiwan
> 早知道APP

![USB-921 App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/dc/07/05/dc070516-fd62-edd8-f0df-6bc321dfe75f/AppIcon-0-0-1x_U007emarketing-0-7-0-85-220.png/400x400bb.png)

**Developer:** [Merry-LinkLtd](https://apptail.io/developer/merry-linkltd-zsM)
**Category:** Utilities
**Rating:** 5.0/5 (8 ratings)
**Price:** Free
**Bundle ID:** net.i2app.merrylink
**Store:** Apple App Store
**Country:** Taiwan
**Version:** 3.2 (released 2025-03-04)
**Original Release:** 2021-01-05

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/tw/app/app/id1539400908)
**AppTail Page:** [https://apptail.io/app/usb-921-LOGf/taiwan](https://apptail.io/app/usb-921-LOGf/taiwan)

## USB-921 Description
APP用來註冊設定USB-921 地震儀, 安裝地震儀用戶, 可接收【P波警報】,【特快報】,【地震快報】,【最大震度】推播通知

## USB-921 Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource114/v4/f6/51/f2/f651f252-fee3-fb72-b731-94dfe97e5135/72a1c0e0-0e6d-49af-bf79-d3fc09754848__U87a2_U5e55_U622a_U5716_2020-12-29__U4e0a_U534811.57.26.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource114/v4/dd/f4/dd/ddf4ddbd-62ad-a292-b18e-11fcc169322c/e1e25dce-4f0c-4b9d-9c6d-726f7241f1c0__U87a2_U5e55_U622a_U5716_2020-12-29__U4e0a_U534811.56.36.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource114/v4/36/ec/62/36ec6214-b3ea-122a-fab1-8988eeffc1bf/8ad32a67-fd57-4fb7-921f-14162e199aec__U87a2_U5e55_U622a_U5716_2020-12-29__U4e0a_U534811.56.40.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource114/v4/a4/cf/46/a4cf465e-64e4-19ff-57e5-f5df1559bd4c/da671332-479f-4ef4-9aee-c92708d95f86__U87a2_U5e55_U622a_U5716_2020-12-29__U4e0a_U534811.57.05.png/1242x2688.png)

## USB-921 Rating Breakdown in Taiwan
- 5 stars: 8 (100%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)





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## USB-921 Available In
- [Taiwan](https://apptail.io/app/usb-921-LOGf/taiwan)
- [Austria](https://apptail.io/app/usb-921-LOGf/austria)
- [Australia](https://apptail.io/app/usb-921-LOGf/australia)
- [Azerbaijan](https://apptail.io/app/usb-921-LOGf/azerbaijan)
- [Belgium](https://apptail.io/app/usb-921-LOGf/belgium)
- [Brazil](https://apptail.io/app/usb-921-LOGf/brazil)
- [Belarus](https://apptail.io/app/usb-921-LOGf/belarus)
- [Canada](https://apptail.io/app/usb-921-LOGf/canada)
- [Switzerland](https://apptail.io/app/usb-921-LOGf/switzerland)
- [Chile](https://apptail.io/app/usb-921-LOGf/chile)
- [China](https://apptail.io/app/usb-921-LOGf/china)
- [Colombia](https://apptail.io/app/usb-921-LOGf/colombia)
- [Czechia](https://apptail.io/app/usb-921-LOGf/czechia)
- [Germany](https://apptail.io/app/usb-921-LOGf/germany)
- [Denmark](https://apptail.io/app/usb-921-LOGf/denmark)
- [Dominican Republic](https://apptail.io/app/usb-921-LOGf/dominican-republic)
- [Estonia](https://apptail.io/app/usb-921-LOGf/estonia)
- [Egypt](https://apptail.io/app/usb-921-LOGf/egypt)
- [Spain](https://apptail.io/app/usb-921-LOGf/spain)
- [Finland](https://apptail.io/app/usb-921-LOGf/finland)
- [France](https://apptail.io/app/usb-921-LOGf/france)
- [United Kingdom](https://apptail.io/app/usb-921-LOGf/united-kingdom)
- [Greece](https://apptail.io/app/usb-921-LOGf/greece)
- [Hungary](https://apptail.io/app/usb-921-LOGf/hungary)
- [Indonesia](https://apptail.io/app/usb-921-LOGf/indonesia)
- [Ireland](https://apptail.io/app/usb-921-LOGf/ireland)
- [Israel](https://apptail.io/app/usb-921-LOGf/israel)
- [India](https://apptail.io/app/usb-921-LOGf/india)
- [Iceland](https://apptail.io/app/usb-921-LOGf/iceland)
- [Italy](https://apptail.io/app/usb-921-LOGf/italy)
- [Japan](https://apptail.io/app/usb-921-LOGf/japan)
- [South Korea](https://apptail.io/app/usb-921-LOGf/south-korea)
- [Kuwait](https://apptail.io/app/usb-921-LOGf/kuwait)
- [Kazakhstan](https://apptail.io/app/usb-921-LOGf/kazakhstan)
- [Lebanon](https://apptail.io/app/usb-921-LOGf/lebanon)
- [Madagascar](https://apptail.io/app/usb-921-LOGf/madagascar)
- [Malta](https://apptail.io/app/usb-921-LOGf/malta)
- [Mexico](https://apptail.io/app/usb-921-LOGf/mexico)
- [Malaysia](https://apptail.io/app/usb-921-LOGf/malaysia)
- [Nigeria](https://apptail.io/app/usb-921-LOGf/nigeria)
- [Netherlands](https://apptail.io/app/usb-921-LOGf/netherlands)
- [New Zealand](https://apptail.io/app/usb-921-LOGf/new-zealand)
- [Peru](https://apptail.io/app/usb-921-LOGf/peru)
- [Pakistan](https://apptail.io/app/usb-921-LOGf/pakistan)
- [Poland](https://apptail.io/app/usb-921-LOGf/poland)
- [Portugal](https://apptail.io/app/usb-921-LOGf/portugal)
- [Romania](https://apptail.io/app/usb-921-LOGf/romania)
- [Russia](https://apptail.io/app/usb-921-LOGf/russia)
- [Singapore](https://apptail.io/app/usb-921-LOGf/singapore)
- [Slovenia](https://apptail.io/app/usb-921-LOGf/slovenia)
- [Thailand](https://apptail.io/app/usb-921-LOGf/thailand)
- [Türkiye](https://apptail.io/app/usb-921-LOGf/turkey)
- [Ukraine](https://apptail.io/app/usb-921-LOGf/ukraine)
- [United States](https://apptail.io/app/usb-921-LOGf/united-states)
- [Vietnam](https://apptail.io/app/usb-921-LOGf/vietnam)
- [United Arab Emirates](https://apptail.io/app/usb-921-LOGf/united-arab-emirates)
- [South Africa](https://apptail.io/app/usb-921-LOGf/south-africa)

---

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