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What's New: - Bug fixes and improvements.
The way to stimulate vision for newborn babies.
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.
past month, based on 1 day
Downloads
Low confidence13
From install count ÷ months since release
In-app revenue
Low confidence$9
From downloads × revenue per download
Ads
$3
$1 – $6
Estimate, ads (benchmark-based, not calibrated per app)
Total
$11
In-app + ads
Google Play only. Downloads from daily Top free ranks (or the store's install count); in-app revenue from Top grossing ranks, calibrated on AppTweak's US estimates, or else from downloads; ads from public ad benchmarks. Not reported figures.