RC Pit Calc Pro3.6.8 - App Store
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Publisher Description
The RC gear ratio calculator trusted by racers and bashers - plus every other calculator you need at the track, in one free app.
GEAR RATIO CALCULATOR
Calculate gear ratio, final drive ratio (FDR), and rollout from your pinion and spur. Enter your gears "before and after" to see the real impact of gear and tire changes as a percentage (e.g. +2.5%), so you know exactly how much speed and motor load to expect. Built-in transmission data for hundreds of popular RC cars.
PINION RECOMMENDER
Not sure which pinion to run? Pick your car, enter your motor, and get a starting pinion from how racers in your class actually gear, plus the range they run. Built from real race setups across hundreds of classes.
TOP SPEED CALCULATOR
For electric cars with brushless motors: enter basic info about your setup and get a solid estimate of your car's top speed.
PILL INSERT / SUSPENSION GEOMETRY CALCULATOR
Find your toe, anti-squat, kick-up, roll center, and track width. Supports all popular cars that use pill inserts, and works with custom suspension mounts.
CORNER WEIGHT CALCULATOR
Enter your car's corner weights and get the full breakdown: front-rear, left-right, and cross weight/wedge.
SHOCK OIL TEMP & VISCOSITY CALCULATOR
Racing on a hotter or colder day than usual? See exactly what shock oil to run to keep the same car feel.
OIL BLENDING CALCULATOR
Don't have the right shock oil with you? Blend the thick and thin oils you already own - this calculator gives you the exact proportions for your target viscosity.
SHOCK DAMPING CALCULATOR
Compare two piston and oil combinations before you build the shock: roll damping, bump pack and jump pack side by side. Supports tapered pistons and dual hole sizes, with presets for common 1/10 and 1/8 shocks plus custom sizes.
FUEL USAGE CALCULATOR
For nitro racers: fuel burn per minute in race conditions, how much you need to finish long mains, and how many pit stops to plan.
FEATURES
- Remembers your entries for each car
- Built-in data (spur gear, transmission ratio) for hundreds of popular cars
- Walkthroughs and detailed help for every calculator
FROM SO DIALED
Want tuning help beyond the math? Our RC Setup App gives you pro setup sheets for 600+ cars, race logging, and an AI mechanic - find "RC Setup App" on the App Store.
Version History New: a Settings tab. See your plan, manage your So Dialed ID and find help in one place. New: Top Speed takes a custom battery voltage. Pick Custom in the battery list and type your own, like 8.4 V for a full 2S pack. Fixed: the Recommended fluid row on Temp & Viscosity no longer gets cut off on smaller phones. Fixed: if the store says you already own Pit Calc Pro, the app now restores it instead of showing an error. Fixed: cancelling Sign in with Apple no longer closes the app. 3.6.8 Oct 2 Bought the ad-free upgrade on iPhone or iPad? Restore Purchase now finds it again after a reinstall or on a new device.
Fixes you'll notice: the last card on every tab now scrolls fully above the menu bar instead of hiding behind it. Long car names on My Cars now end neatly with "…" instead of showing half a line. And once your So Dialed ID is added, the extra sign-in button at the top is gone. 3.6.7 Sep 23 Your So Dialed ID now brings your purchase with it. If you added one on the last version and were told no purchase was found, open the app after updating and tap Finish when asked. Your purchase moves onto your So Dialed ID. Pit Calc Pro stayed unlocked on your phone the whole time. 3.6.5 Sep 15 Your upgrade no longer lives on a single phone. Add a free So Dialed ID and your purchase follows you to a new phone, or when you move between iPhone and Android. All it takes is an email address and a code. Nothing else about the app has changed, and the math is untouched. 3.6.4 Sep 10 Three free cars instead of two. Also fixed: a calculator's first-run tips could be marked as seen against a calculator you had never opened, so the tips never showed up where you needed them. Most often this hit the gear calculator. None of the math has changed. 3.6.3 Sep 4 Housekeeping release. Once in a long while, and only after something has gone right, the app will ask whether you would rate it. Nothing in the calculators has changed. 3.6.2 Sep 1 • Fixed the second input box being pushed off the edge of the screen on Fuel Usage
• Dividers and edges across the app were too faint to see. They now meet accessibility contrast standards
• A refreshed home screen and a new startup screen 3.6.1 Aug 27 • Fixed the second input box being pushed off the edge of the screen on Fuel Usage
• Dividers and edges across the app were too faint to see. They now meet accessibility contrast standards
• A refreshed home screen and a new startup screen 3.6.0 Aug 25 • Fixed the second input box being pushed off the edge of the screen on Fuel Usage
• Dividers and edges across the app were too faint to see. They now meet accessibility contrast standards
• A refreshed home screen and a new startup screen 3.5.2 Aug 20 • Corner Weights is redrawn: your car's balance shows as a board with a marker. Set a balance target per car and each side shows the grams it is off. Cross weight is now an axis of its own.
• Short corner labels (LF, RF, LR, RR), with a setting for full names.
• The total weight is bigger and easier to read.
• Translation fixes in Czech, French, Spanish and German. 3.5.0 Aug 18 • Fixed the second input box being pushed off the edge of the screen on Fuel Usage
• Dividers and edges across the app were too faint to see. They now meet accessibility contrast standards
• A refreshed home screen and a new startup screen
• Fonts now ship with the app, so text appears right away and nothing is downloaded
• The gearing advice button now appears only when it has something to suggest, and offers to add your motor when that is all that is missing
• Fixed crashes that could close the app when the network dropped 3.4.9 Aug 14 • Fixed a crash when you cleared the Tank size box on Fuel Usage
• Fixed a crash when you deselected your last gear in the gear chooser
• Signing in no longer crashes if your connection drops for a moment 3.4.7 Aug 6 • Fixed two crashes on the Suspension Geometry screen
• Deals: the region filter now works in every language and shows many more deals
• Fuel Usage: corrected run-time values in Czech and Chinese
• Repaired incomplete translations and gear terms across all languages 3.4.6 Aug 5 Fixed a crash that could close the app when leaving a help or setup screen. 3.4.5 Aug 4 New: Pinion advice. Tap it on the pinion chooser and we'll suggest a pinion for your car and class based on your motor — with the range other racers run, and one tap to use it.
Foam tires now work properly. Tell us your tire diameter and we'll work in rollout, and remember it for next time.
Now fully in your language, including the walkthroughs and alerts.
No more ad-tracking permission prompt. We don't use it.
Fixed a crash in the Suspension Geometry calculator. 3.4.4 Jul 31 Changed a gear? You can now jump straight to that exact pinion or spur size at AMain.
The gear chooser opens on the gear you're already running instead of at the top of the list — and the small pinions that used to be out of reach are back.
Calculator icons now work offline. No more blank circles when the track has no signal.
Tire diameter no longer adds a stray ".0" to a whole number.
A note about Top Speed: version 3.4 corrected the top speed formula, which was running about 6% optimistic. Your numbers will read a little lower than they used to — the new ones are the accurate ones.
Translation fixes throughout, including the pinion and spur labels in Spanish and Chinese, which were showing the same word. 3.4.3 Jul 28 Major cleanup in translations.
Fixed errors in calculations that could occur when using comma for decimals on iOS.
Fixed a dead Back button after signing up.
Rebuilt foundation so we can ship improvements to you faster. 3.4.0 Jul 27 Fixes top speed error when calculating with inches. 3.3.7 Jul 19 Updated promo system. 3.3.6 Apr 22 Updated promo system. 3.3.5 Apr 7 Fixed typo in battery dropdown on speed calculator. 3.3.3 Jan 20 Fixed issue in Temp-Viscosity calculator when using Celsius. 3.3.2 10/27/2025 Fixes issue that prevented scrolling when choosing pinion/spur. 3.3.1 10/14/2025 Gear Calculator now allows you to set the gears you have, so when you choose gears you can see those gears only, or you can see them highlighted in the list.
Theme updates.
Fixed issue with padding at bottom of some screens. 3.3.0 10/10/2025 Cleaned up UI on Gear Ratio Calculator, adapts better to small screens. 3.2.8 09/16/2025
About RC Pit Calc Pro
The company that develops RC Pit Calc Pro is Degree3, Inc.. The latest version released by its developer is 3.6.8.
To install RC Pit Calc Pro on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-14 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the RC Pit Calc Pro as malware if the download link is broken.
How to install RC Pit Calc Pro on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the RC Pit Calc Pro is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After RC Pit Calc Pro is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 3.6.8
posted on 2026-10-14
Version History New: a Settings tab. See your plan, manage your So Dialed ID and find help in one place. New: Top Speed takes a custom battery voltage. Pick Custom in the battery list and type your own, like 8.4 V for a full 2S pack. Fixed: the Recommended fluid row on Temp & Viscosity no longer gets cut off on smaller phones. Fixed: if the store says you already own Pit Calc Pro, the app now restores it instead of showing an error. Fixed: cancelling Sign in with Apple no longer closes the app. 3.6.8 Oct 2 Bought the ad-free upgrade on iPhone or iPad? Restore Purchase now finds it again after a reinstall or on a new device.
Fixes you'll notice: the last card on every tab now scrolls fully above the menu bar instead of hiding behind it. Long car names on My Cars now end neatly with "…" instead of showing half a line. And once your So Dialed ID is added, the extra sign-in button at the top is gone. 3.6.7 Sep 23 Your So Dialed ID now brings your purchase with it. If you added one on the last version and were told no purchase was found, open the app after updating and tap Finish when asked. Your purchase moves onto your So Dialed ID. Pit Calc Pro stayed unlocked on your phone the whole time. 3.6.5 Sep 15 Your upgrade no longer lives on a single phone. Add a free So Dialed ID and your purchase follows you to a new phone, or when you move between iPhone and Android. All it takes is an email address and a code. Nothing else about the app has changed, and the math is untouched. 3.6.4 Sep 10 Three free cars instead of two. Also fixed: a calculator's first-run tips could be marked as seen against a calculator you had never opened, so the tips never showed up where you needed them. Most often this hit the gear calculator. None of the math has changed. 3.6.3 Sep 4 Housekeeping release. Once in a long while, and only after something has gone right, the app will ask whether you would rate it. Nothing in the calculators has changed. 3.6.2 Sep 1 • Fixed the second input box being pushed off the edge of the screen on Fuel Usage
• Dividers and edges across the app were too faint to see. They now meet accessibility contrast standards
• A refreshed home screen and a new startup screen 3.6.1 Aug 27 • Fixed the second input box being pushed off the edge of the screen on Fuel Usage
• Dividers and edges across the app were too faint to see. They now meet accessibility contrast standards
• A refreshed home screen and a new startup screen 3.6.0 Aug 25 • Fixed the second input box being pushed off the edge of the screen on Fuel Usage
• Dividers and edges across the app were too faint to see. They now meet accessibility contrast standards
• A refreshed home screen and a new startup screen 3.5.2 Aug 20 • Corner Weights is redrawn: your car's balance shows as a board with a marker. Set a balance target per car and each side shows the grams it is off. Cross weight is now an axis of its own.
• Short corner labels (LF, RF, LR, RR), with a setting for full names.
• The total weight is bigger and easier to read.
• Translation fixes in Czech, French, Spanish and German. 3.5.0 Aug 18 • Fixed the second input box being pushed off the edge of the screen on Fuel Usage
• Dividers and edges across the app were too faint to see. They now meet accessibility contrast standards
• A refreshed home screen and a new startup screen
• Fonts now ship with the app, so text appears right away and nothing is downloaded
• The gearing advice button now appears only when it has something to suggest, and offers to add your motor when that is all that is missing
• Fixed crashes that could close the app when the network dropped 3.4.9 Aug 14 • Fixed a crash when you cleared the Tank size box on Fuel Usage
• Fixed a crash when you deselected your last gear in the gear chooser
• Signing in no longer crashes if your connection drops for a moment 3.4.7 Aug 6 • Fixed two crashes on the Suspension Geometry screen
• Deals: the region filter now works in every language and shows many more deals
• Fuel Usage: corrected run-time values in Czech and Chinese
• Repaired incomplete translations and gear terms across all languages 3.4.6 Aug 5 Fixed a crash that could close the app when leaving a help or setup screen. 3.4.5 Aug 4 New: Pinion advice. Tap it on the pinion chooser and we'll suggest a pinion for your car and class based on your motor — with the range other racers run, and one tap to use it.
Foam tires now work properly. Tell us your tire diameter and we'll work in rollout, and remember it for next time.
Now fully in your language, including the walkthroughs and alerts.
No more ad-tracking permission prompt. We don't use it.
Fixed a crash in the Suspension Geometry calculator. 3.4.4 Jul 31 Changed a gear? You can now jump straight to that exact pinion or spur size at AMain.
The gear chooser opens on the gear you're already running instead of at the top of the list — and the small pinions that used to be out of reach are back.
Calculator icons now work offline. No more blank circles when the track has no signal.
Tire diameter no longer adds a stray ".0" to a whole number.
A note about Top Speed: version 3.4 corrected the top speed formula, which was running about 6% optimistic. Your numbers will read a little lower than they used to — the new ones are the accurate ones.
Translation fixes throughout, including the pinion and spur labels in Spanish and Chinese, which were showing the same word. 3.4.3 Jul 28 Major cleanup in translations.
Fixed errors in calculations that could occur when using comma for decimals on iOS.
Fixed a dead Back button after signing up.
Rebuilt foundation so we can ship improvements to you faster. 3.4.0 Jul 27 Fixes top speed error when calculating with inches. 3.3.7 Jul 19 Updated promo system. 3.3.6 Apr 22 Updated promo system. 3.3.5 Apr 7 Fixed typo in battery dropdown on speed calculator. 3.3.3 Jan 20 Fixed issue in Temp-Viscosity calculator when using Celsius. 3.3.2 10/27/2025 Fixes issue that prevented scrolling when choosing pinion/spur. 3.3.1 10/14/2025 Gear Calculator now allows you to set the gears you have, so when you choose gears you can see those gears only, or you can see them highlighted in the list.
Theme updates.
Fixed issue with padding at bottom of some screens. 3.3.0 10/10/2025 Cleaned up UI on Gear Ratio Calculator, adapts better to small screens. 3.2.8 09/16/2025
Disclaimer
Official App Store Link
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