# Tenpin Doctors: Ball Motion — Ball motion, PAP & layout tool > Bowling ball motion simulator, layout planner, and AI coach. (iPhone/iPad app by FLOYD LENARD RAYMOND.) - Source: https://appshunter.io/ios/app/tenpin-doctors-ball-motion/id6800104236 (this page in markdown: same URL + `.md`) - Developer: [FLOYD LENARD RAYMOND](https://appshunter.io/developer/6800104238) - Category: Sports, Education - Price: Free with in-app purchases - Rating: 4.40/5 from 21 App Store ratings · 7 written reviews indexed - Age rating: 4+ - Requires: iOS 26.5 · 65 MB - Languages: American English, Arabic, Danish, Dutch, Finnish, French (France), German (Germany), Indonesian, Italian, Japanese and 10 more - Released: 2026-09-21 - Data updated: 2026-11-10 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/tenpin-doctors-ball-motion/id6800104236/reviews.md ## What is Tenpin Doctors? I'm JR Raymond, and I built Tenpin Doctors — a ball motion simulator, layout planner and AI coach in one app — for bowlers and pro shop operators who want to know what a ball will do before they drill it or throw it. I build it on my own, in a pro shop and on league night, because both ends of the counter were guessing at the same question: what is this ball actually going to do? WHAT'S FREE AND WHAT'S PRO Free: the Store, the PinPoint tracker hub, The Lab, and the Knowledge library — balls, oil patterns, centers, reviews, the dictionary, documents and pro shops. Pinpoint PRO is $9.99 per month or $69.99 per year. There is no free trial; the free side above stays free. PRO unlocks My Specs, Training, the calculators, the Tenpin Doctor coach, the live ball database, the simulator's full ball library, current oil patterns, and bowler sync across your devices. 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. WHAT BOWLERS SAY Big D from the Sipp, 5 stars — "As a pro shop guy and just a lover of the game, this app is exceptional! Thanks JR!" Camtastic28, 5 stars — "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." 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 Pro includes 5 Tenpin Doctor questions each month. Need more, buy a question pack — 25 questions for $2.99, 100 for $5.99, 200 for $9.99 or 500 for $19.99. 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 ## Key features - Ball motion simulation - Layout planning - AI coaching - Ball database - PAP and spec calculators - Training drills ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Pinpoint PRO monthly | $9.99 | per month | | PinPoint Pro (yearly 19.99) | $69.99 | per year | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | 25 Doctor Questions | $2.99 | one-time | | 100 Doctor Questions | $5.99 | one-time | | 200 Doctor Questions | $9.99 | one-time | | 500 Doctor Questions | $19.99 | one-time | | 750 Play Dollars | $0.99 | one-time | | 2,500 Play Dollars | $2.99 | one-time | | 10,000 Play Dollars | $9.99 | one-time | | Double Experience, 7 Days | $2.99 | one-time | ## Is Tenpin Doctors safe? Not enough ratings yet to assess Tenpin Doctors. ## Is Tenpin Doctors legit? Tenpin Doctors: Ball Motion has limited verification signals. The AppsHunter Legitimacy Score for Tenpin Doctors is 58 out of 100 points across 7 verification signals from App Store and developer data. ## Recent user reviews (7 of 7) All indexed reviews: https://appshunter.io/ios/app/tenpin-doctors-ball-motion/id6800104236/reviews.md ### 4/5 — Great app but the pap keeps erroring *2026-10-23* 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. **Developer response:** Thanks for flagging this — you entered 5 over and down 1 and 7/8, and the app was reading it back as up. That's my bug, not your input. Fixed in the current build; please update and let me know if it still reads wrong. If it does, email me and I'll chase it down with you. — JR Raymond, Tenpin Doctors ### 5/5 — First of its kind! *2026-10-03* As a pro shop guy and just a lover of the game, this app is exceptional! Thanks JR! **Developer response:** Thank you — coming from a pro shop guy that means a lot. I've put your words on the App Store page so other drillers see them. — JR Raymond, Tenpin Doctors ### 5/5 — Pro shop data *2026-09-30* 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. **Developer response:** Thank you — using it to teach youth how to read oil patterns is exactly what I hoped someone would do with it. Scoring is in now, so that's one app for everything. — JR Raymond, Tenpin Doctors ### 5/5 — Support Tenpin Doctors *2026-09-29* This app is great once you learn how to use it, JR will always make it better ### 5/5 — Get it B4 the price goes up! *2026-09-28* JR is doing what no one’s ever done. He’s really working hard to help the sport of bowling. He’s a one man show at this point so be patient and REASONABLE with his products. Thank you & God Bless you! ### 5/5 — New to bowling *2026-09-28* 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. ### 5/5 — Great app *2026-09-28* 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 ! ## Frequently asked questions about Tenpin Doctors ### What is Tenpin Doctors? Tenpin Doctors is a mobile application designed for bowlers that offers ball motion simulation, layout planning, and AI coaching. It helps users understand how a bowling ball will react on the lane before drilling or throwing it. ### Does Tenpin Doctors have ads? No, Tenpin Doctors does not contain advertisements. The app is free to download and use, with optional in-app purchases for advanced features. ### What are the subscription options for Tenpin Doctors? Tenpin Doctors offers a 'Pinpoint PRO' subscription, available monthly for $9.99 or yearly for $69.99. This subscription unlocks the live ball database, full simulator library, current oil patterns, calculators, training, and bowler sync. ### How does the AI coach in Tenpin Doctors work? The AI coach in Tenpin Doctors uses your specific bowling specs and ball information to provide personalized advice. You can ask it for a line to the pocket, explanations for ball reactions, or recommendations for changes on different lane conditions. ### Can I plan bowling ball layouts with Tenpin Doctors? Yes, Tenpin Doctors allows you to plan dual angle and VLS layouts based on your personal PAP. You can visualize the layout on a 3D ball, save your designs, and simulate their potential results before drilling. ### What devices is Tenpin Doctors available on? Tenpin Doctors is currently supported on iPhones. The app is rated for ages 4+ and was last updated on November 8, 2026. ### How often is the ball database updated in Tenpin Doctors? The ball database in Tenpin Doctors is kept current with real RG, differential, and core data. New releases from manufacturers are added as they become available, ensuring you have access to the latest specifications. ### What is the user sentiment for Tenpin Doctors? Tenpin Doctors has a strong user rating of 4.4 stars based on 21 ratings, indicating generally positive user sentiment. Users appreciate its advanced simulation and coaching capabilities. ## Version history (last 5 releases) ### 1.9.3 — 2026-11-09 Fixed: reopening a saved simulated shot, changing it and saving added a second copy instead of updating the one you were working on. Fixed: deleting a simulated shot could take the other shots for the same ball and layout with it. Now only the one you tapped goes — and it asks first. Fixed: the Lay-down and Target arrow sliders moved on their own after every shot. They stay where you put them now, like Axis rotation and Ball speed always have. New — Bowling Ball View: a Core / Coverstock switch next to Roll It. Watch the actual ball roll down the lane in its own colours, or keep the clear shell with the core inside it. Set which one you start on in Settings. In the Simulated Shots folder, "launch" now reads Laydown and "break" reads arrows — the two numbers you actually set. The range finders on the lane are black now, the way an inlay really looks, instead of navy. In The Lab: pick how you're bowling with a checkbox and start with the Start Game button, so reading the three options no longer starts a league by accident. Back is green, not a red Leave. Keep the notes coming — most of this list came from bowlers and pro shop operators emailing me. — JR Raymond ### 1.9.2 — 2026-11-08 Full screen for the ball motion simulator, and a line you set with your thumb. FULL-SCREEN SIMULATOR • Tap the full screen button and the lane fills the phone. • Drag the ball on the foul line to set your lay-down board. • Drag the target at the arrows to set your line. • The two move independently — setting one no longer shifts the other. • Roll it and Advanced sit under the lane, out of the way of the foul line, and they are smaller now so the lane gets the room. • The screen is locked while you are setting a line, so dragging sideways no longer backs you out to My Specs. PICK YOUR SEAT • New View button. You aim from the bowler’s view — the only angle your line means anything from — then the shot plays from whichever camera you pick, and the lane hands you back the bowler’s view when it stops. • Nothing rolls on its own while you are aiming. The ball goes when you say it goes. • Chase the ball sits further back, so you can see the line the ball is taking instead of the back of the ball. Pinch the lane to zoom it in and out. FIXED • Lane views: Roll it now always plays the view you have selected. It used to replay whatever camera the last shot finished on, so the buttons looked like they had stopped working. • The Doctor: the X closes his window again, Follow-up works again, and asking him to open your spec sheet opens it. • Spec sheets: picking a name from the list opens the sheet instead of dropping you back a screen. • The How to button can be dragged anywhere on screen, or folded away to a small disc with the × — and it stays where you put it. ### 1.9.1 — 2026-11-06 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. ### 1.9 — 2026-10-28 The simulator now throws the ball the way you actually throw it. Set your loft and the ball carries down the lane on the line you picked — not off to the side — then lands and rolls. Lay down anywhere out to the 49 board: move outside the lane and the loft you need is worked out for you, so the ball clears the channel and comes down on the lane instead of in it. Ask the Doctor for a line from out there and he’ll set it up the same way, loft included. Also in this update: • The Doctor finds your ball. Ask about a ball by name and he’ll find it in the catalogue instead of telling you it isn’t there. • Save simulated shots from Plan a Layout, not just from your own arsenal. • Your question count is back on the Doctor’s band, and you can top up whenever you like rather than waiting until you run out. Bought questions never expire and roll over month to month. • More realistic pinfall. Pin-to-pin contact, deflection and carry were rebuilt — the rack reacts to where the ball actually enters and how hard, so a light hit leaves what a light hit leaves. • A faster, steadier simulator with a number of fixes to the ball motion engine. ### 1.8 — 2026-10-19 This build is about accuracy and reliability. FIXED — Ball layout from a photograph The VAL angle was being reported as its supplement: a ball laid out 45° × 4" × 35° read back as 145°. The pin-to-PAP distance, drilling angle and pin buffer were always correct — only the VAL angle was affected. If you measured balls recently, check them. Any ball showing a VAL angle above 90° has the wrong number saved. Open it, tap Calculate Layout and tap Done, and it will recalculate from the marks already on the photo. FIXED — Duo sensor calibration Calibration could fail on some phones and work perfectly on others, with nothing on screen to explain it. The sensor's reply was being lost in transit whenever it arrived in more than one piece, which depended entirely on the phone's Bluetooth connection. The app now reassembles those messages properly, on every device. FIXED — Add Layout on a measured ball Add Layout sent you to the layout planner instead of back to the ball's own photograph, for any ball whose PAP came from your profile rather than from that ball's oil ring. It now opens the photo, with the markers where you left them. IMPROVED — When a layout can't be calculated Saving a ball that the app can't yet measure a layout from used to end quietly, with no explanation. It now tells you exactly what is missing — the grip markers, or a PAP — and what to do about it. Practising with your own equipment in the game remains part of a My Specs subscription. 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User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-10.*