Clue.

The app is designed to make the process of renting a car while your truck is being repaired as easy and convenient as possible. With just a few taps on your smartphone, you can reserve a rental car for the duration of your truck's repairs and be on your way to your next destination.
The app would allow you to select the type of rental car you need, such as a small car for commuting. You can also choose the dates and times for pickup and return of the rental car, and the app would provide you with an available rental options.
Once you arrive at the repair shop, you can easily pick up your rental car and drop off your truck for repairs. The app would provide you with updates on the progress of your truck repairs, and you can arrange for a convenient time to return the rental car when your truck is ready.
Overall, an app for a repair shop that rents cars while the truck is being repaired would provide a seamless and stress-free experience for truck owners who need to keep moving even when their vehicle is out of commission.