Black White Card

Name: Black White Card
Author: Liu Peng

LiveLiu Peng6 apps · 46.9K installsToolsFree · contains adsIn-app purchases: $0.99 per itemcom.zhishitech.blackwhite

The way to stimulate vision for newborn babies.

Alert me ★ Watch Open in Play ↗

Total installs: 855
Installs / day: 0
Rating: —★
Released: 22 Feb 2021
Last update: 11 Aug 2025
Countries: —

Install history

exact counter from Google Play

30dAll

Installs per day · last 90 days

Change timeline

Full history

No 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

Country data will be available soon.

We estimate where downloads come from using the app’s position in Google Play’s top charts in about 140 countries. This app is not in any chart we have collected yet; the estimate appears as soon as it is.

Top chart positions

Not in any tracked top chart.

App manifest

Read this app's manifest from Google Play: permissions, declared SDKs, components and AdMob app ID. Saved analysis appears here automatically.

Data safety

declared by the developer on Google Play

Shares data with third parties Location, App activity and 2 others
Collects data Location, Financial info and 3 others
Data is encrypted in transit
No way to ask for data deletion

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

3 in 1 group

0 Sensitive1 Notable2 Routine

OtherNotable3

Access to miscellaneous device features that don't fit other categories

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

Read more · all 3 permissions Show less

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

Download

Full description

How to use black and white card: 1. Hold the card about 30cm away from the baby. 2. Slow movement causes the baby to follow. 3. Switch to the next card after the baby sees the card. Black and white card training time: 1. Use 5 to 10 cards at a time. 2. Train no more than 5 times a day and no more than 15 minutes. Notes for black and white cards: 1. Use it when your baby is in good physical and mental state. 2. Once the baby is in bad condition, stop immediately.

What's new

What's New: - Bug fixes and improvements.

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