What is the cost per MB with a pay-per-use plan?

You can choose between two types of pay-per-use plan: a pay-per-use plan without a subscription fee (for Personal and Business customers) and a pay-per-use plan with a subscription fee (for Business customers). 

Pay-per-use plan without a monthly subscription fee
PERSONAL CUSTOMERS
For Zone 1 countries (including Italy, the rest of Europe, the United States and many other countries), the plan’s pay-per-use rate is €0.12/MB if you use more than 2 MB/month and €0.24/MB if you use less than 2 MB/month. See here for details of the other zones:  https://www.thingsmobile.com/private/plans
When data traffic is used by a SIM card, the minimum charge is 1 MB/month. If no data traffic is used by a SIM card, there is no charge.
The default multi-operator profile (TM-1) is assigned during the activation process. It costs €0.25 per SIM card to change a roaming profile.
Traffic is charged in increments of 1 kB, except for in the following countries: Bahrain, Brunei, Cuba, Equatorial Guinea, The Gambia, Israel (Hot Mobile), Laos, Malawi (Telekom), Malaysia (Celcom), Moldova, Oman, Pakistan (Warid), Russia (VimpelCom), Sri Lanka (Mobitel), Sierra Leone, Vietnam (10 kB); Iran (20 kB); Qatar (Ooredoo) (30 kB); Pakistan (Pakistan Mobile) (100 kB); Tajikistan, Uzbekistan (1024 kB).
The rates include VAT where due.
BUSINESS CUSTOMERS
For Zone 1 countries (including Italy, the rest of Europe, the United States and many other countries), the plan’s pay-per-use rate is €0.10/MB if you use more than 2 MB/month and €0.20/MB if you use less than 2 MB/month. See here for details of the other zones:
When data traffic is used by a SIM card, the minimum charge is 1 MB/month. If no data traffic is used by a SIM card, there is no charge.
The default multi-operator profile (TM-1) is assigned during the activation process. It costs €0.20 per SIM card to change a roaming profile.
If a SIM card is not used for more than 12 consecutive months (no data traffic and no incoming and outgoing SMS messages), a charge of €1 will be taken out of the remaining credit.
Traffic is charged in increments of 1 kB, except for in the following countries: Bahrain, Brunei, Cuba, Equatorial Guinea, The Gambia, Israel (Hot Mobile), Laos, Malawi (Telekom), Malaysia (Celcom), Moldova, Oman, Pakistan (Warid), Russia (VimpelCom), Sri Lanka (Mobitel), Sierra Leone, Vietnam (10 kB); Iran (20 kB); Qatar (Ooredoo) (30 kB); Pakistan (Pakistan Mobile) (100 kB); Tajikistan, Uzbekistan (1024 kB).
The rates do not include VAT where due.
Pay-per-use plan with a monthly subscription fee

PERSONAL CUSTOMERS

For Zone 1 countries (including Italy, the rest of Europe, the United States and many other countries), the plan’s pay-per-use rate is €0.05/MB. See here for details of the other zones: https://www.thingsmobile.com/private/plans

With this plan, there is a monthly fee of €1,20 per SIM card. 

The default multi-operator profile (TM-1) is assigned during the activation process. It costs €0.25 per SIM card to change a roaming profile. 

Traffic is charged in increments of 1 kB with an exception for the following operators charged in increments of 10 kB: Bahraian (Zain BH), Equatorial Guinea (Greencom), Gambia (Africell), Israel (Hot Mobile), Malawi (Airtel Africa), Malaysia (Celcom), Moldova (Moldcell), New Caledonia (OPT), Oman (Oman Mobile), Pakistan (Warid), Russia (Vimpelcom), SriLanka (Mobitel), Sierra Leone (Africell), Vietnam (Vietamobile), Iran (MTN), Pakistan (Warind, Ufone). 

The rates include VAT where due. 

You can find more information at thingsmobile.com  

BUSINESS CUSTOMERS
For Zone 1 countries (including Italy, the rest of Europe, the United States and many other countries), the plan’s pay-per-use rate is €0.02/MB. See here for details of the other zones: https://www.thingsmobile.com/business/plans/pay-per-use-plan-with-subscription-fee
With this plan, there is a monthly fee of €1 per SIM card.
The default multi-operator profile (TM-1) is assigned during the activation process. It costs €0.20 per SIM card to change a roaming profile.
Traffic is charged in increments of 1 kB, except for in the following countries: Bahrain, Brunei, Cuba, Equatorial Guinea, The Gambia, Israel (Hot Mobile), Laos, Malawi (Telekom), Malaysia (Celcom), Moldova, Oman, Pakistan (Warid), Russia (VimpelCom), Sri Lanka (Mobitel), Sierra Leone, Vietnam (10 kB); Iran (20 kB); Qatar (Ooredoo) (30 kB); Pakistan (Pakistan Mobile) (100 kB); Tajikistan, Uzbekistan (1024 kB).
The rates do not include VAT where due.
You can find more information at thingsmobile.com