- Total installs
- 4,595
- Installs / day
- +4
- Rating
- —★
- Released
- 29 Aug 2018
- Last update
- 25 May 2026
- Countries
- —
Installs per day
gain of the exact counterLifetime avg ≈ 2/day (all installs ÷ days since release)
Daily tracking since 10 Oct 2026 · history grows every day
Install history
exact counter from Google PlayDashed: estimate from the release date (no daily data before 10 Oct 2026) · time axis compressed before that day
Daily tracking since 10 Oct 2026 · history grows every day
Change timeline
Full historyNo changes recorded yet. We compare every crawl with the previous one and list title, icon, screenshots, description, version, price and availability changes here.
Country availability
Availability has not been checked for this app yet. “Check all countries” looks the app up in about 140 Google Play storefronts and shows where it is live, listed but not installable, or missing — plus any country-specific (custom) store listings.
Top countries
estimate · charts of 12 OctMost downloads likely come from 🇹🇼 Taiwan (~100%).
Estimated from top-chart positions weighted by each country’s Google Play market size. Countries where the app is not in a chart are not shown, so small markets may be missing.
Top chart positions
as of 12 Oct| Chart | Country | Rank | Change |
|---|---|---|---|
| Top free · Education | TW | #145 | ▼ 7 |
Data safety
declared by the developer on Google Play- No data shared with third parties
- No data collected
This is the developer's own declaration, summarised from the Play listing. The permissions below show what the app is technically able to access.
Permissions
11 in 4 groupsWhat this app can do with your phone
- Know roughly where you are, using mobile towers and Wi-Fi networks
- Know your exact location using GPS, Wi-Fi and mobile networks
- Use your camera to take photos and record videos
LocationSensitive2
Access to where your device is, using GPS or network signals
- Know roughly where you are, using mobile towers and Wi-Fi networksapproximate location (network-based) ·
ACCESS_COARSE_LOCATION - Know your exact location using GPS, Wi-Fi and mobile networksprecise location (GPS and network-based) ·
ACCESS_FINE_LOCATION
CameraSensitive1
Access to your camera to take photos and record video
- Use your camera to take photos and record videostake pictures and videos ·
CAMERA
Wi-Fi connection informationRoutine1
Access to details about Wi-Fi networks your device sees or uses
- See whether Wi-Fi is on and details of the network you are connected toview Wi-Fi connections ·
ACCESS_WIFI_STATE
OtherNotable7
Access to miscellaneous device features that don't fit other categories
- See Bluetooth settings and connect to paired devices like headphones, speakers or watchespair with Bluetooth devices ·
BLUETOOTH - Turn Bluetooth on or off and find and pair with nearby Bluetooth devicesaccess Bluetooth settings ·
BLUETOOTH_ADMIN - Keep your phone's processor or screen from going to sleep, which can use more batteryprevent device from sleeping ·
WAKE_LOCK - Check whether you are online and whether you use Wi-Fi or mobile dataview network connections ·
ACCESS_NETWORK_STATE - Connect to the internet to load content and send datafull network access ·
INTERNET - Make your phone vibratecontrol vibration ·
VIBRATE - Receive push messages sent from the app's servers over the internetreceive data from Internet ·
com.google.android.c2dm.permission.RECEIVE
Sensitive = can reach personal data, location, camera/mic or act on your behalf. Notable = changes how your device behaves. Routine = normal for almost every app. Source: Google Play's permission list for all versions of this app.
Store listing
Full description
What's new
1.2.2 版 1.館藏查詢的ISBN查詢修正。
