Ratio Calc!

Name: Ratio Calc!
Price: 400 JPY
Rating: 9.1 (20 reviews)

Gearing for your R/C car

¥400Best Deal Ever

6.6for iPhone, iPad and more

9.1

20 Ratings

David Mills

Developer

12.1MB

Size

2019年02月23日

Update Date

Sports

About Ratio Calc!

Ratio Calc is a quick and easy tool for radio control car racers to use trackside. Knowing your final drive ratio (FDR) is very useful for comparison with other racers to determine if your car is geared correctly. You can also view your favourite information on Apple Watch.

It lets you quickly select your car by filtering on manufacturer and model. Select your pinion and spur size and the FDR is displayed. Tyre diameter can also be entered to calculate your rollout.

Ratio and roll out charts are also available which plot pinion and spur gear combinations to create very handy reference tables.

- Save your favourite cars for quick access

- Save notes and track name against your favourite cars

- Share ratio/rollout charts

- Download new cars from within the app

- Select measurement units (imperial/metric)

- Select your preferred gear pitch, alternative ratios in other pitches will be shown

- Over 1600 cars/variants in the database

最新バージョン 6.6 の更新情報

Last updated on 2019年02月23日

旧バージョン

-Support for the latest devices and iOS
-Improved the database update process to show more details
-Removed the text erasing buttons on the text fields when editing notes
-Moved the gear and diameter pickers up so that the results can be seen whilst changing the settings
-Updated database and manufacturers
-Various other little tweaks and improvements

Enjoy your R/C racing!

Version History

6.6

2019年02月23日

6.5

2018年01月23日

We've added a tip jar - the app has been kept up to date since 2011 and we've never charged for an update. Any tip will unlock the ability to change the app's colour scheme and app icon - we've even included some retro icons that may be familiar to long time users.

Also in this version:
-Improved watch app reliability
-Transponder input form improvements
-Other boring little fixes and optimisations

6.4

2018年01月08日

-iPhone X support
-Improved Apple Watch app (watchOS 2+ required)
-Now you can save motor and timing details for your saved cars
-Improved displays when using larger display fonts

6.3.1

2017年01月26日

- Change of support email address

Enjoy your racing!

6.3

2016年11月11日

-You can now update the car database more easily
-iOS10 compatibility
-Latest car database included

6.2

2016年05月14日

-Improved car database updating - simply pull to refresh on the manufacturers screen
-Quickly copy your transponder number into the clipboard
-Fixed an issue with the ruler displaying incorrectly
-Improved iPad Pro support

6.1

2015年11月03日

- Transponder store improvements - you can now save more than 3 transponder numbers - thanks to Jason H for the suggestion.
****Note:**** Please ensure you visit the transponder store part of the app to migrate your existing transponder numbers over to the new version. Until this is done they will not show in the Today widget or on the Apple Watch Glance.
- iPad multitasking support for iO9
- Revised app layouts - faster navigation using tabs
- Several other tweaks and improvements

6.0.1

2015年10月06日

-Database update URL has now changed. This version is required to continue receiving car database updates.
-Fixed a bug which hid the car notes under the keyboard if the note was more than a few lines long. Thanks Michael T for reporting this.

6.0

2015年05月28日

Introducing Ratio Calc! for Apple Watch - view your cars ratio/rollout with ease.

Now you can store your transponder numbers so that they're available quickly when booking in - view them either on the Apple Watch or on the Today screen (iOS8 required).

If you love using Ratio Calc! please leave a review - it's greatly appreciated. Many thanks.

5.10

2015年01月26日

-Updated for iOS8, iPhone 6, iPhone 6+
-Latest car database
-iOS7 is now a minimum requirement
-Bug fixes

5.03

2014年06月05日

-Quick access chart buttons for saved cars now display correct pinion/spur info

5.02

2014年04月02日

More iOS7 bugfixes - sorry :-(

5.01

2014年03月28日

-Bug fixes (iOS 7.x)
-Latest database
-Performance improvements

5.0

2014年02月19日

-New look and layout
-Requires iOS6 and above
-84 DP, Mod 0.4, Mod 0.6 pitch support

4.80

2013年10月28日

*Bug fixes
*latest database and logos

4.70

2013年03月25日

-iPad support!
-Latest database

4.60

2012年12月13日

-Mod 1.0 support
-Mod 0.8 support
-Latest database

4.50

2012年09月21日

*** requires at least iOS 4.3 ***
- iPhone 5 support
- Latest car database
- Updated logos

4.40

2012年06月13日

-Additional language support
-Latest car database

4.30

2012年03月07日

- Maximum pinion size is now 100T

- Latest car database

- Updated manufacturer logos

4.20

2012年01月11日

- Saved cars now remember their gear pitch setting to make it easier for racers that use different DP with different cars

- Gear pitch (DP) can now be changed whilst in the calculator, not just in settings

- The saved cars list can now be re-arranged

- Updated car database and logos

4.10

2011年11月28日

- Smaller changes in tyre diameter now possible
- Some small user interface changes
- Latest car database
- Updated manufacturer logos

4.01

2011年07月22日

- Save notes against your cars

- Switch gear pitch easily using the suggested equivalent sizes

- Maximum tyre diameter increased

- Updated car database

- Updated manufacturer logos

- Fixed small bug that sometimes erased saved track notes

4.0

2011年07月18日

- Save notes against your cars

- Switch gear pitch easily using the suggested equivalent sizes

- Maximum tyre diameter increased

- Updated car database

- Updated manufacturer logos

3.41

2011年05月12日

Feedback Report