The free app connects to TMC's Mileage Audit system, which is used by more than 120,000 drivers in the UK and Europe and is guaranteed by TMC to reduce mileage costs for new customers. If Mileage Audit doesn't save their business twice the cost of the service, TMC will refund the difference.

Advanced features of the system include TMC's “RouteLine” process, which enhances the accuracy of mileage logs when drivers are using the app's GPS function to track journeys. RouteLine is able to map road mileages accurately even when a phone temporarily loses satellite signals. 

Drivers can choose between three trip-entry modes when using the phone. As well as GPS-based automatic tracking, drivers can use Mileage Audit's “postcode lookup” function to log distances between two postcodes. Or they can manually key in the details, including locations, distance and reason for travel.

The app runs on Android, Apple, BlackBerry and Windows phones and can be downloaded from online app stores or via the TMC website (www.tmcuk.co.uk). For a completely integrated fuel and mileage service, corporate customers can combine the service with TMC's optional multi-brand fuel card, which is accepted by 97.9% of UK service stations.

Journeys recorded by the app are uploaded directly to the driver's account on the TMC Mileage Audit system, which proactively checks entries for accuracy and processes reimbursement data.

If the employer's scheme requires drivers to submit fuel receipts, the app will upload photographs of them taken with the phone's camera. For even greater versatility, there is an optional expenses module that allows employees to record meal, travel and accommodation costs with the app.

Paul Jackson, managing director of TMC, said: ‘Smartphone apps are revolutionising the way businesses handle fuel and mileage. Now that two out of three people in the UK carry a smart phone, every business can log its employees' mileage easily and accurately, and without having to invest in costly fixed or plug-in technology in their vehicles.

‘Because our app is an extension of the TMC Mileage Audit system, it offers all the features customers look for in a market-leading service. That includes detailed records that contain every parameter needed to satisfy HMRC requirements; the ability to distinguish between all four types of taxable and non-taxable mileage, and of course our unique, proactive auditing process that guards against mistakes, omissions and deliberate fraud by employees.’