TowingCheck

TowingCheck tells you whether your vehicle can pull the trailer you are about to hitch up. Enter six numbers and it checks your load three ways at once, then gives you a single verdict: SAFE or UNSAFE. Being inside your tow rating is not the whole picture. A truck can sit under its tow capacity and still be over its GCWR (Gross Combined Weight Rating) once the weight of the vehicle itself is added to the trailer and the cargo. A tongue percentage can look reasonable and still fall outside the range the app checks for. TowingCheck runs all three checks together, shows the tow and GCWR margins in pounds, and marks any check that fails. WHAT YOU CAN DO - Enter your vehicle tow capacity, GCWR and curb weight - Enter trailer weight, cargo weight and the tongue weight percentage - Read one SAFE or UNSAFE verdict at the top of the screen, on a panel that turns red the moment a limit is passed - See your total load and your tongue weight in pounds - Compare tow margin and GCWR margin side by side, each turning red once it reaches zero or below - Watch the tongue figure turn amber when your percentage sits outside 10 to 15 - Change any figure and watch every result recalculate as you type, with no calculate button to press HOW THE CHECK WORKS Total load is trailer weight plus cargo weight. Tow margin is your tow capacity minus that total. GCWR margin is your GCWR minus the vehicle curb weight and the total load together. Tongue weight is the percentage you set applied to the total load. The verdict reads SAFE only when both margins are positive and the tongue weight percentage is between 10 and 15. There is no partial pass. Every weight is in pounds. WHO IT IS FOR - Anyone hitching a travel trailer, camper, boat or utility trailer - Truck, SUV and van owners checking a load before they leave - Anyone shopping for a trailer who needs to know what their vehicle can pull PRIVACY TowingCheck works fully offline. There is no account, no sign up and no server: the app makes no network connection at all, so nothing you enter ever leaves your device, and nothing you type is kept after you close it. It carries no advertising and no analytics. Runs on iPhone and iPad, and follows your light or dark appearance setting. TowingCheck is a calculation tool for planning. It does not look your vehicle up, you enter the ratings yourself. Use the weight ratings published by your vehicle and trailer manufacturers, and follow those limits and your local road rules.