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Stroke Builder

By The Boffin Lab Limited

This app is only available on the App Store for iOS devices.


Stroke Builder from is the definitive guide to swimming front crawl and correcting faults using swimming drills. The app features videos narrated by Great Britain Olympic triathlon coach Dan Salcedo. It is an invaluable tool for developing swimmers and coaches alike.

To get you started the free app contains the first 4 videos. The rest of the content is offered as In-App Purchases. This content is split into 3 sections
- stroke builder, fault fixer and drills database, so you can choose the section that suits your current level of swimming or get all 3 to complete this comprehensive guide to front crawl.

Novice swimmers should start with the stroke builder section which will lead them step-by-step to developing an efficient front crawl.

Intermediate swimmers will benefit from the fault fixer and drills database to help them fix issues with their stroke and provide variety to their training sessions.

Coaches can use all the sections as a demonstration tool to show correct technique to their swimmers.

App Contents

Stroke Builder sections included for FREE:
• Introduction - The Perfect Stroke
• Reducing Resistance - Body Position

Stroke Builder bundle available for In-App Purchase includes:
• Reducing Resistance - Head Position
• Reducing Resistance - Breathing
• Reducing Resistance - Kick
• Body Roll And Recovery - Hand Entry
• Body Roll And Recovery - Body Roll
• Body Roll And Recovery - Recovery Phase
• Propulsion - Catch
• Propulsion - Pull
• Propulsion - Push

Fault Fixer sections included for FREE:
• Introduction - Fixing Faults
• Body Position - Body Not Streamlined

Fault Fixer bundle available for In-App Purchase includes:
• Head Position - Head Too High
• Breathing - Not Breathing Out Underwater
• Breathing - Lifting Head When Breathing
• Breathing - Cannot Breathe Bilaterally
• Kick - Kicking With Knees
• Kick - Ankles Flexed
• Kick - Wide And Deep Kick
• Hand Entry - Crossing Midline
• Hand Entry - Too Wide
• Hand Entry - Overreaching
• Hand Entry - Too Close To Head
• Body Roll - Not Enough
• Body Roll - Too Much
• Body Roll - Not Initiated At Hips
• Recovery Phase - Swinging Wide
• Catch - No Initial Catch Phase
• Catch - Elbow Dropped
• Catch - No Early Vertical Forearm
• Pull - Elbow Not High
• Pull - Crossing Midline
• Pull - Too Wide
• Push - Finish Too Early
• Push - Finish With Soft Hand

Drills Database sections included for FREE:
• Introduction - Using Drills
• Drills - Catch Up

Drills Database bundle available for In-App Purchase includes:
• Drills - Doggy Paddle
• Drills - Finger Trail
• Drills - Finishing
• Drills - Fists
• Drills - Front Sculling
• Drills - Head Position
• Drills - Head Touch
• Drills - Head Up
• Drills - Kicking Hands By Side
• Drills - Kicking On Side
• Drills - Kicking With Board
• Drills - Mid Sculling
• Drills - Poolside Breathing
• Drills - Pushing
• Drills - Single Arm Swimming
• Drills - Superman
• Drills - Thigh Touch
• Drills - Vertical Forearm Sculling
• Drills - Zip Up

Each section contains video and supporting text from the expert coaches of

What's New in Version 1.3

Additional diagnostics info for app support


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Customer Reviews

Waste of Time

I purchased this app, with the expectation it would offer more than the basics. If you wanted more in depth direction you have to buy its package for 4.99. False advertising

Awesome video show how to do

I really love it and I quick buy all 3 list and it worth my money because I have hard time to find good video that show how to do because I'm beginner swimmer. This apps that are way better than YouTube. I have few book but it not that good as this also I rather video. Because I need see how it moving in right ways and even in water. They even show wrong ways too. This is so awesome! I show to my friends who are experience swimmer and they said this is best video they ever seen. By the way this is my 2nd review. In my first review that I delete it and re-write. I have problem with download and it take forever to download. So I delete it then reinstall with faster internet and now it successful install. You will need faster or good internet to download it.

Stroke Builder
View in iTunes
This app is designed for both iPhone and iPad
  • Free
  • Category: Health & Fitness
  • Updated:
  • Version: 1.3
  • Size: 82.3 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 6.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

This application hasn’t received enough ratings to display a summary.
All Versions:

Top In-App Purchases

  1. Stroke Builder Bundle$4.99
  2. Drills Database Bundle$4.99
  3. Fault Fixer Bundle$4.99

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