Work hours onsite input

Hi There,

I have a client in that runs a lawn care business.  He would like to record hours on a device (such as an Android phone) onsite and have them transferred into some kind of invoicing program.  I have looked at a few Android apps, but I need one that will record which of his employees were also on the job.  The names do not need to appear on the invoice, but there must be some way to tell each week how many hours the employee logged.


Ideally, the app would track overall hours and then incorporate the individual hours into the total hours worked on a project.  This would be reflected on the app and do the math for each employee’s contribution.

I hope this post is clear enough.  The apps that link to a website sounds great, but I would have to be able to have a field for the employees, so it may require some customization or additional fields.

Thank you for any advice…  eric