Your ball, your release, your lane — simulated on real physics. Find your PAP, plan a layout, and see what the ball actually does.
Tenpin Doctors is a ball motion simulator, layout planner and AI coach in one app — built for bowlers and pro shop operators who want to know what a ball will do before they drill it or throw it.
SEE THE BALL BEFORE YOU THROW IT
Roll any ball on a simulated lane with your own numbers: rev rate, axis rotation, tilt, speed, surface and loft. Set your lay-down board and your target at the arrows and watch the line. Change the pattern, change the surface, move your feet — and see what it costs you.
ASK THE TENPIN DOCTOR
An AI coach that knows your specs, your PAP and the ball you’re holding. Ask for a line to the pocket and he’ll work one out and set the sliders himself. Ask why a ball rolls out, what to change on a burnt-up house shot, or how a layout will react — and get an answer, not a search result.
2,700+ BALLS, KEPT CURRENT
Real RG, differential and core data, updated from our server as manufacturers release them. New releases arrive with their specs and a traced 3D core, ready to roll on the simulator with your layout and release.
PLAN LAYOUTS THAT MAKE SENSE
Dual angle and VLS layouts worked from your own PAP, with the pin, PSA and mass bias placed on a 3D ball you can turn. Save them, compare them, and simulate the result before a single hole is drilled.
FIND YOUR PAP AND YOUR SPECS
Scan your ball, find your grip centre and measure your positive axis point. Calculators for axis tilt, rev rate, ball speed, span and pitch.
TRAINING AND KNOWLEDGE
Drills, practice programs and a reference library covering lane play, ball motion and layout theory, with new content added through the season.
FOR COACHES AND PRO SHOPS
Keep every bowler’s specs, layouts and saved shots in one place, synced to every device you work from.
LIVE TRACKING — OPTIONAL ADD-ON
Tenpin Doctors Trackers and Duos are separate hardware accessories, sold separately, that track your ball live on the lane — speed, boards and shot-by-shot data straight into the app. The app is fully usable without them; they add live tracking for bowlers who want it.
PINPOINT PRO
$9.99 per month or $69.99 per year. Unlocks the live ball database, the simulator’s full ball library, current oil patterns, My Specs, the calculators, training, and bowler sync across your devices.
Pro includes 5 Tenpin Doctor questions each month. Need more, buy a question pack — bought questions never expire and roll over month to month.
Pinpoint PRO is an auto-renewing subscription — $9.99/month or $69.99/year.
Payment is charged to your Apple Account at confirmation of purchase.
The subscription renews automatically unless cancelled at least 24 hours before
the end of the current period. Your account is charged for renewal within 24 hours
prior to the end of the current period. You can manage or cancel your subscription
in your Apple Account settings after purchase.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://www.tenpindoctors.com/privacy
The app is a great source of information. It would easily be 5 stars but everytime I go to input my pap on anything which is 5 over and down 1 and 7/8, it keeps reading it on layouts as 5 over and up 1 and 7/8 which changes everything. This error has made it hard to layout a ball properly. Besides this one issue, everything so far has been great and recommend for any bowler who wants to learn what the pro shop side looks like.
New to bowling
Biltryt
I bought this app as I am just a league bowler but have had interest in becoming a better bowler and I believe there is power in knowledge and being new it seems like bowlers and drillers keep secrets of what layout is optimal and I apparently had my balls all drilled wrong for how I bowl and so having this app I am hopeful that I can learn a lot and simulate my balls rolling down the lane with my specs as it helps me also learn how to play the lane etc. I think it is worth investing in tools like this for me to enhance my love for the game and have inside knowledge to be able to speak game and kinda know what I am talking about or so I think. I like the access to the inventory and shop online but I always try to support my local pro shop as I believe in still having that personal relationship. I probably don’t use the app as intended because I don’t have all the tools but still think it is worth the $20 a year.
Pro shop data
Camtastic28
Has tons of information about all ball manufacturers and everything you can think of when it comes to information. I use this app to help youth figure out how to tackle oil patterns. Love it and can’t wait to see it grow. Would love to see scoring in the future so I can have one app for everything.
Great app
South side 35
So far so good. New apps are going to have bugs but get it now before it goes up in price. Not everyone has access to a pro shop down the street so this can help wonders !
Duo trackers
• Fixed the 15 ft unit on device 2 going silent when you pressed Ready to Bowl.
• Target board and miss room are now set per lane, and the miss room range is wider.
• Indicator colours are re-sent every time you arm, so they are right from the first shot.
Bluetooth
• A tracker that stops reporting is now noticed and reconnected automatically, instead of sitting there looking connected.
Ball motion simulator
• Corrected pin carry. Pins that leave the deck through the channel now behave like pins on the pit floor, which is what they are — messengers and carry read properly again.
Find My PAP
• Clearer thumb and thumbless prompts, and LF / RF / TH are labelled properly.
Version 1.9.1
The developer, FLOYD LENARD RAYMOND, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Location
Contact Info
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
FLOYD LENARD RAYMOND
Size
67.9 MB
Category
Sports
Compatibility
Requires iOS 26.5 or later.
iPhone Requires iOS 26.5 or later.
Mac Requires macOS 26.5 or later and a Mac with Apple M1 chip or later.