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.
New: USBC Masters 2025 Oil Pattern Added.
Minor fixes and improvements.
New in v2.6.7:
Demonstration Mode
- Visually display taps and drags when recording or casting your screen.
- Make tutorial videos, talk through your arsenal, or explain how to play a pattern, then share online, or send to a fellow bowler, student, or customer.
- Include video from your front camera so you can talk through what you're doing.
- Enable Demonstration Mode from the Settings screen.
New in v2.6.6:
New: Sort bag by Purchase Date or Number of Games.
Fix: Number of games + / - buttons on ball sometimes causing number to be reset.
Fix: Rule of 31 doesn't work on patterns over 48 feet!
More patterns added to the Pattern Library.
Minor fixes and improvements.
v2.6.2:
- New: View Layout & Drilling information directly from Bowling Ball screen.
- New: Measurements from selected drilling, including spans, now reflected in 3D layout view.
- New: More realistic grips in 3D view.
- New: More information shown in the drilling list,
- New: Use the new drilling list item in the selector when viewing a layout or editing a ball.
- New: Embedded ball popup to view ball details without being taken away from Layouts section.
+ lots more improvements and fixes.
New in v2.5.5:
- Rank the bowling balls in your arsenal by Hook Amount and Length.
- Use either of these new value in the Comparison Chart and edit them directly by dragging them into position!
- A few bug fixes and performance improvements.
New in 2.5.4:
- Added 2024 PBA and PWBA Oil Patterns.
- Updates to Korean translation. Thank you 윤서준 !
- Minor bug fixes and performance improvements.
v2.5.3
Minor bug fixes and performance improvements.
Bug fix release due to issue in previous version.
2.4.6 Bug fix release
New in 2.4.5
- Pattern Library now includes two new diagrams on patterns. In addition to the common left-to-right composite graph, I've introduced a front-to-back version. Both change interactively as you focus on different areas.
- With Custom Patterns you can now tap the number to enter a value manually rather than using sliders.
- In the Ball Speed & RPM tool, information is given on whether you might be speed or rev dominant and what the ideal numbers might be.
Minor updates and bug fixes.
New in v2.4.0
- Angles & Targeting: If you don't shoot your spares dead straight you can now adjust how many boards your spare ball moves.
- Bowling Ball Arsenal: Tap the chart button to compare the bowling balls in any of your own bags, or any filtered list in the Ball Library.
Observation Trainer: Icons on the results screen were hard to see on some devices.
Changelog now available in the app. Tap "History" next to version number at bottom of settings screen to see what's new!
v2.3.8
Bug fixes and behind-the-scenes updates.
v2.3.6:
Fix bug that caused bowling bags not to load when sorted by RG or Diff.
v2.3.5:
Added weight filter in the Bowling Ball Library! Now RG and Diff values update automatically to reflect the weight you have selected, and the weight is selected automatically when adding a ball to one of your own bags!
+ Other fixes and improvements behind the scenes!
New in v2.3.4
- Improvements to work around apps like FB messenger and Twitter/X hijacking Tenpin Toolkit links and stopping them opening in the app.
New in v2.3.3
- Improved text search in Ball and Pattern Libraries.
- New similar ball feature - Pick a ball and find others with the closest characteristics.
- Updates to translations in several languages.
New in v2.3.3
- Improved text search in Ball and Pattern Libraries.
- New similar ball feature - Pick a ball and find others with the closest characteristics.
- Updates to translations in several languages.
New in v2.3.2
- Bug fix for some users seeing blank screen on running app for the first time
New in v2.3.1
- Quick access to update “Number of Games” when viewing one of your bowling balls in the Arsenal
- Tutorial video in Custom Patterns area of Pattern Library
- Over 120 new oil patterns added to Pattern Library
New in v2.3.0:
- Share balls, searches, patterns, custom patterns & more with special links that automatically open in the app.
- Additional info at a glance in Ball Arsenal list.
New in version 2.3.1
- Quick access to update “Number of Games” when viewing one of your bowling balls in the Arsenal
- Fix: Add new bag button sometimes didn’t work.
- Tutorial video in the Custom Patterns area of the Pattern Library
- Over 120 new oil patterns added to the Pattern Library
New in version 2.3.0:
- Share balls, ball searches, patterns, custom patterns & more with special links that automatically open directly in the app.
- Additional info at a glance in Ball Arsenal list view.
New in 2.2.9:
- US Open 2023 Oil Patterns added. Good luck to everyone bowling this week!
- Improvements to searching by name in the pattern library, including bringing up keyboard automatically.
- “Haptic” feedback when using sliders on the settings screen and in Pattern and Arsenal filters.
- Ball Library update
- Other fixes and improvements behind the scenes.
Fix: Scrolling issue when showing favorite oil patterns within the Angles & Targeting tool
Fix: Scrolling issue when opening notes from within other tools.
Fix: Ball library would occasionally fail to load on older/slower devices.
New in Bowling Ball Arsenal:
- Auto-updating ball library.
- Ignore filters when searching by name.
- Presets for RG and Diff filters, eg. Low, Medium & High.
- Click on Core & Coverstock names to list other balls with the same ones.
- And more!
New: Quick setup wizard for bowlers using the app for the first time.
New: Video zoom in Ball Speed & RPM tool + support for landscape videos.
Updated: Latest balls in the Bowling Ball Arsenal.
Updated: French & Swedish translations. (Thank you Loic Raineval and Bernt Carlsson respectively!)
Fix: Incorrect display of some USBC flat patterns
Fix: Custom patterns sometimes wouldn't display in 3D view.
Fix: Axis tool dragged the wrong way in left handed mode.
New! Bowling Ball Arsenal & Notes
Arsenal combines a searchable library of over 1500 balls with a way to organize balls into separate bags & record of info about them, such as surface, layout, dates & more.
After something new? Use the Library to dial in exactly what you want & see what’s available, filtering by brand, cover & core types, RG, Diff, etc.
Notes keeps all your bowling related notes in one place, & attach specific notes to patterns, balls, speed & rpm results, and in other tools.
Added IBF 2022 World Youth oil pattern - Good luck to all the teams taking part this week!
v2.1.2
Fix: Increase maximum for Pattern Volume search
Fix: Always showed mph in speed tool advanced mode
Updated translations in
- Japanese (Thank you Ariya Kanamori!)
- French (Thank you Loic Raineval!)
- Swedish (Thank you Bernt Backa!)
- Vietnamese (Thank you Tony Ot Pham!)
Various other smaller fixes and performance improvements.
V2.1.1
Allow cancelling of video setup process in “Ball Speed & RPM” advanced mode and “Angles & Targeting” video mode.
Fix name disappearing on some oil patterns when sharing.
Fix miss area overlay on multi-pin spares.
Improve video position prediction in “Ball Speed & RPM” advanced mode
Updated translations in Swedish & Vietnamese (Huge thanks to Bernt Backa & Tony Ot Phạm, respectively!)
Haptic feedback on buttons and sliders.
Various other smaller fixes and performance improvements.
Bug fixes, minor improvements and some preparations for future new features!
New "Switch camera" button in video mode setup and fix problems with switching cameras on some devices.
Hide shot line in video mode.
Lots more bug fixes and small improvements.
If you purchased before 12 Aug 2021 you're entitled to a free lifetime upgrade. Contact me via the "Already Upgraded?" option if being asked to upgrade, or use link at bottom of Settings screen.
"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.
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