Hi FragglePete,
Hopefully I can help you with the costing for SIMS mobile. The SIMS Mobile software is only charged per device as a one-off initial cost. The maintenance fee is annual and is not per device. Therefore, from the information you've posted, once you have paid the one off cost for the software for each device, your annual charge should only be a standard flat rate (for example £400), not per device.
Hi Antoekee,
If you are still having issues with the offline functionality then let me know the case number and I'll make sure it gets looked at asap.
Regards,
Jonathan Wood
SIMS Product Manager - Technical and Releases