Bert

Fuzzy Yellow Balls, LLC
In-app purchases
Content rating
Everyone
500+
Downloads
Content rating
Everyone
In-App Purchases
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About this app

Harness the power of AI to analyze and improve your tennis serve faster than ever before! Film your serve and within minutes you'll get back results with improvement areas and exercises to help you improve all facets of your serve based on scientific data from leading experts.
Updated on
Jun 11, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, App activity, and App info and performance
Data is encrypted in transit
You can request that data be deleted

What’s new

Thanks for using Bert! This version contains bug fixes and under the hood improvements.
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Content rating
Everyone
In-App Purchases
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App support

About the developer
FUZZY YELLOW BALLS LLC
support@fuzzyyellowballs.com
4545 Connecticut Ave NW Apt 535 Washington, DC 20008 United States
+1 385-547-0227

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