ServeLab

ServeLab

A Tennis Coach in Your Pocket

0 ratings
6 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • July 31, 2025
  • August 6, 2026

Features

ServeLab screenshot #1 for iPhone
ServeLab screenshot #2 for iPhone
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About

Film your tennis serve and receive instant AI-powered feedback on your technique. Identify mistakes and get actionable advice to improve your game. Your personal tennis coach is now available on your phone.

AI-powered serve analysis
Mistake identification
Personalized improvement tips
Video recording and feedback
Pocket tennis coach
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What's New in ServeLab

3.0.1

August 6, 2026

This version contains significant performance improvements and of course a few bug fixes.

Subscription plans

Bert Monthly

Unlimited access to Bert

$29.001 Month
How to cancel ServeLab subscription ⁉️
1

In-App Purchases

$67.00

One lesson with Bert

Two uploads - before & after analyses

User reviews

Sizing and comparison issues

Three issues - 1 - data and screens get clipped when viewing on phone so can’t see all info. Nothing I can do to fix this and very frustrating. 2 - requested to be compared to a female player and always compared to a male player (usually Jannik, i wish i was a 6’4” male pro player, i am not). 3 - if I reverse the camera to shoot my serve the AI somehow puts the racquet in my LEFT hand and treats me like a lefty. It’s bizarre.
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zu teuer!

viel zu teuer! schade weil an sich eine gute idee. 350€ nur für aufschlag ist zu viel. das muss auch günstiger gehen vielleicht mit werbung ansonsten buche ich mir einfach einen trainer und hab für weniger geld mehr davon.

300$ per year paywall

This buggy app which doesn’t work is behind a 300$ dollar per year subscription. Insanely steep price for something that doesn’t help your game at all. Much less worth 30 dollars a month. Feels like a rush job. There are definitely better alternatives to this.

The worse part is the AI ‘support’

Uploaded a video of my serve to the app, and the feedback I got was ‘no mistakes’.

The support team consists of an AI robot waffling on about general issues. It’s told me to add better prompts ‘comparing it to top pros’, (fairly sure there is no option to add prompts) ‘take a side shot for more accurate analysis’ (a direct contradiction to the instructions). ‘The app is probably analysing general flow and not biomechanics’.

The app is also really clunky and slow.

Don’t trust these slick YouTube videos. So far it’s been a complete waste of money.
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Great idea, lacking execution so far

I echo the other review, though maybe it has gotten better by now with a larger dataset to work from. When I used it in Oct 25, it was not able to accurately distinguish different parts of my body and joint angles even if I set up everything perfectly with good lighting and distinguishable clothing. I thought I was going crazy trying everything to change my stroke until I realized it was not reading my stroke right in the first place. Additionally, although Mark is a good researcher and can identify problems with technique, he isn’t an expert coach in fixing those problems, so the tips for improvement are quite limited.
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Developer apps

FAQ

How does Bert analyze my tennis serve?

Bert uses AI to analyze a video of your tennis serve. It identifies specific mistakes in your technique and provides actionable advice on how to correct them, helping you improve your game.

What kind of feedback does Bert provide?

Bert provides detailed feedback on your serve, highlighting errors in your form and offering clear instructions on how to fix them. This personalized guidance aims to enhance your serving accuracy and power.

Is Bert available on all devices?

Bert is available on iPhone, iPad, and iPod. The app is designed to work on Apple's mobile operating systems.

What are the subscription options for Bert?

Bert offers monthly and yearly subscription plans. The monthly plan costs $29.00 per month, and the yearly plan is priced at $299.00 per year.

Does Bert have ads?

Yes, Bert contains advertisements. As a free app with in-app purchases, it utilizes ads to support its services.

What is the age rating for Bert?

Bert has an age rating of 4+, making it suitable for young users and above. This indicates it contains no mature content.

How often is Bert updated?

The latest version of Bert was released on March 24, 2026. Updates are released periodically to improve features and performance.

What is the user sentiment for Bert?

Based on the available data, Bert has a rating of 3.0 stars from 3 ratings. This suggests a mixed user reception.