iPhone Screenshots


RV Tow Check is the first "Before You Buy RV" towing capacity calculator that conforms to manufacturers' weight safety and warranty warnings and complies with the SAE J2807 trailer weight rating (TWR) calculation methodology.

RV Tow Check answers the most often asked questions, "How much can my truck tow?" or "How much can my SUV tow?" or "How much can my motor coach tow?"

RV Tow Check can assist all RV buyers and dealers to ensure tow vehicles are properly matched to any type of towed vehicle.

RV Tow Check provides users with the choice of beginner or expert mode of operation. It is recommended that first-time users start with the beginner mode and learn from the detailed instructions and pertinent details to become an expert user.

RV Tow Check simplifies the process of obtaining the realistic vehicle towing capacity for any vehicle towing a trailer, and it is as accurate as the weights that are entered into it.

RV Tow Check displays realistic vehicle towing capacity for a fifth wheel or gooseneck, and conventional trailers (bumper pull) simultaneously and provides instant results when selecting various kingpin or tongue weight percentages.

RV Tow Check requires a minimum of four inputs by the buyer or dealer. The required entries are gross combination weight rating (GCWR), gross vehicle weight rating (GVWR), the gross vehicle weight (GVW), and trailer weight ratings (TWR) for fifth wheel, gooseneck and conventional trailers.

RV Tow Check users have the option to select a fifth wheel hitch if it is not already installed in the truck.

RV Tow Check users may include any additional unscaled weight for cargo, aftermarket equipment, and passenger weight. The app does not assume everyone weighs 150 pounds as the manufacturers do.

RV Tow Check is a must have tool for anyone owning or considering a tow vehicle less than a late-model one-ton dually truck.

RV Tow Check is a small price to pay considering it’s capable of saving one from a very costly mistake.

What's New

Version 1.1.1

Minor edit correction.

Ratings and Reviews

1.9 out of 5
8 Ratings
8 Ratings

So helpful!!!

We’re buying a 5th wheel and a truck to haul it and it has been very confusing trying to figure out if certain trucks can haul all the weight. This app gives you very specific directions and as long as you have the numbers it asks for, it gives you an answer. I used the Ford towing guide (online all the way back to 2003) and the sticker on the inside of the door to get all the numbers I need. Thanks for giving me the confidence to know the truck I found can pull the 5th wheel I want.


Report doesn't make sense to a newbie

Entered in the required info for tow vehicle and trailer, the report generated talks about percentages of hitch load/tongue weight and provides numbers based on the range of acceptable percentages, but the calculated numbers presented in the report aren't explained...are these the max hitch load/tongue weights or what? Bottom line, I have no idea if the trailer I'm looking at is safe to tow with my vehicle, which is the whole point. App needs some work, or better explanation of what is being presented in the report.

Developer Response

Sorry to read that you are having some difficulty. There is no required entry for trailer information. Only tow vehicle information is required. I recommend you go to the settings page and select FAQ on the menu. I'm sure you will find the answer there, specifically question one and two. In summary, whatever percentage you select is the max towing capacity, just as the headings are written, "Max 5th Wheel Towing" and Max Conventional Towing." If the trailer's GVWR is more than the max towing capacity for the pin or tongue weight percentage you select to use, then you shouldn't be towing that trailer. After learning this, how can I write the current instructions better? Please email me.


Danger: bug

Does not update the final screen if you change values. Do not trust this calculator. I wish I would have listened to 1st reviewer.

Edit: it appears to work if you use the menu button (upper left) to change screens. But if you use a finger drag to go back a screen it appears to confuse the app. Still sticking with 1 star for now

Developer Response

Did you follow the instructions in beginner mode? The app works perfectly fine. The number one issue has always been the user not following directions. The other user you refer to did not follow directions either. Considering that 2,410 iOS apps have been sold as of this date without any negative reviews, a rating of 99.9% of satisfied users is excellent. If you are still having problems, please contact me.


Dave Gray
23.7 MB
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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