Here's another one, not sure anything about the company:
Hi wILLIAM,
Thank you for your enquiry regarding #truetune for vehicle FG11 VYF.
https://satuning.co.uk/truetune/
The #truetune is a personal remapping tool, not a tuning box. It allows you to remap a vehicle without leaving home.
Stock you should be running approximately 326 bhp and 450 NMs of torque. Previously we have achieved an average of 380 bhp and 520 NMs of torque with this vehicle. This is with a Stage 1 Remap, which is designed for use with standard components and within all mechanical tolerances. We class this as our fast road application, which is the best all round performance for stock vehicles.
As a natural consequence of more torque you may also see better fuel economy when driving conservatively. However, this can vary from vehicle to vehicle and is dependent on driving style.