Tenpin Toolkit: Bowling Tools

In-app purchases
4.9
764 reviews
50K+
Downloads
Content rating
Everyone
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About this app

"Every bowler should have Tenpin Toolkit on every device they own. It’s an incredible information source and provides so many things to help you learn, get better and challenge yourself."

Tim Mack
USBC Hall of Famer & Storm's Director of Global Relations

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"A brilliant app with tools to help you develop and learn different skills. The observation trainer is a great way to train your eyes to start watching your ball go down the lane"

Verity Crawley
PWBA Professional & SCAD Team Coach

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"As UAE National Head Coach, I use Tenpin Toolkit to explain to my players how to play the lanes and the 3D view really helps them see the proper line. The Observation Trainer helps them learn to follow their ball through the pins and start to understand why things happen."

Mika Koivuniemi
PBA Hall Of Famer. 14 Titles. Two-time Player of the Year.

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"I use Tenpin Toolkit at PBA level and as a coach. The lane play portion is fantastic, with the ability to show getting the ball right quickly which is crucial on the PBA Tour. The observation trainer is really good for helping players watch the ball go off the deck and determining dominant eye to help alignment. One of the best $9.99 I have ever spent and the most realistic app in the world for what I am doing."

Jim Callahan
PBA Tour Manager at Storm Bowling

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A collection of useful tools for tenpin bowlers and coaches including:

- Angles & Targeting -
Adjust your targets to show a shot on the lane diagram and work out the exact path the ball should take from the start of the approach.

- Axis Tilt & Rotation -
Take a picture or video of your ball with a PAP (Positive Axis Point) marker and position it beneath a guide to get an approximate measurement of your axis tilt and rotation.

- Ball Speed & RPM -
Calculate the speed the ball travels down the lane. Use a video for greater accuracy and slow the video down to measure rev rate.

- Observation Trainer -
Watch bowling balls travel down a simulated lane to test and improve your ability to observe ball motion.

- Pattern Library -
Instant access to details & diagrams of hundreds of oil patterns, or enter your own custom patterns. Load any pattern into Angles & Targeting to plot your shot directly over it and plan how you'll attack the lanes.

- Bowling Ball Arsenal -
Searchable library of over 1,500 balls and a way to manage your own arsenal. Organise balls into separate bags and keep track of information such as surface, layout, important dates and more. When looking for something new, use the Ball Library to find exactly what you want, with filters for brand, cover & core types, RG, Diff and more.

- Notes -
Keep track of information about your game and equipment. Create general notes, or add notes from within most of the other tools, such as for oil patterns, your bowling balls, Speed & RPM readings, Observation Trainer scores and more.

- Score Calculator -
A calculator for bowling scoring and a great way for beginners to learn how the scoring system works.

- Spare Names -
Just for fun, tap on the pins to see the nicknames of common spares.

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If you purchased Tenpin Toolkit from the Google Play Store BEFORE 12 Aug 2021 you are entitled to a free lifetime upgrade! The app will try to detect if you previously purchased the app but if you're still being asked to upgrade, please contact me via the "Already Upgraded?" option, or use the link at the bottom of the Settings screen.

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Premium features can be unlocked with an in-app subscription. Subscriptions will be applied to your Apple App Store account and will automatically renew annually unless canceled at least 24-hours before the end of the current period. You can cancel anytime in your Apple App Store account settings.

Terms of Use: https://www.tenpintoolkit.com/terms-of-use.html

Privacy Policy: https://www.tenpintoolkit.com/privacy.html

Support: https://www.tenpintoolkit.com/#contact
Updated on
Jul 21, 2025

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.
This app may share these data types with third parties
App activity, App info and performance, and Device or other IDs
This app may collect these data types
App activity and Device or other IDs
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.9
728 reviews
Rachel Davis
February 4, 2025
I absolutely love this app. It's a must have for anyone wanting to take their game to the next level but it is INVALUABLE as an arsenal/equipment tracker. An older ball of mine wasn't listed so I followed the instructions for how to request the add, and it was in there the next day. Amazing. I'd love to see a future update include a feature for tracking game scores and stats (by pins). If that's added, this would literally be the only app you'd need.
Did you find this helpful?
Tenpin Toolkit
February 6, 2025
Thanks Rachel! I'll admit it's not always THAT quick to get balls added, but it's usually not too long! I get asked for score tracking a lot, but as there's already lots of other scoring apps, and I do this on my own with limited time, I try to focus on features you can't get anywhere else. I do have lots of ideas for it though, so maybe one day.
Lead slinger
November 11, 2022
It sounds like it would be a cool idea, but this thing is not easy to use at all. I have gotten each feature to work 1 time after about 40 attempts. Now I cant get anything to work right. If your hoping to get a lot of useful data just bring a friend or get a coach if you value your time and sanity. The only things that works easily is the ball speed calculation and rev rate but you don't need a app for that so yeah. I wouldn't recommend this really. Cool in theory no so much in practice.
7 people found this review helpful
Did you find this helpful?
Tenpin Toolkit
January 11, 2023
Hi There. Really sorry to hear you had problems using the app. Your feedback definitely isn't consistent with the positive feedback I normally get so I'd love to discuss further and work out why it's not working for you. Would really appreciate it if you could contact me via support@tenpintoolkit.com so I can look into the problems you had! Thanks!
Andy W
January 4, 2023
Trying the paid version for a year. I'm disappointed that my most often used balls aren't in the arsenal listing (RG Attention series, and the IQ Dark Green). So far it's not too bad other than this. Using this to get some ideas for the tougher patterns and how my equipment matches up. It would be nice if we could add custom balls to the arsenal for these situations.
2 people found this review helpful
Did you find this helpful?
Tenpin Toolkit
January 4, 2023
Hi Andy! I'll be adding Custom Balls in the future, but please get in touch via support@tenpintoolkit.com & I'll try to get these added for you. If you ever have a problem please don't hesitate to contact me. I always try to fix problems and make the app better for everyone, rather than have anyone feel the need to leave a low rating! :)

What’s new

New: Some exciting new features that will be made available to testers soon!
New: 2025 PWBA, SYC and USBC oil patterns added.
Minor fixes and improvements.