# ThingSIM

> ThingSIM sells IoT data SIMs for devices in the UK and Europe, billed only while each SIM is switched on.

ThingSIM sells data SIMs for connected devices such as alarm panels, routers, payment terminals, EV chargers, CCTV cameras, trackers and sensors. SIMs are ordered online by card, arrive switched off, and are billed only from the day each one is activated in the ThingSIM portal. UK plans roam across all four UK mobile networks (O2, Vodafone, Three and EE) or three of them (no EE) for less. ThingSIM is operated by Netavo, a UK network services provider.

## Key facts

- SIMs arrive inactive, with no monthly charge until activated; billing for each SIM starts the day it is switched on.
- UK 4-network plans roam across O2, Vodafone, Three and EE, from £0.90 a month per SIM for 50 MB.
- UK 3-network plans roam across O2, Vodafone and Three (no EE), from £0.65 a month per SIM for 50 MB.
- Plan sizes are 50 MB, 250 MB, 1 GB and 5 GB a month; 1 GB on UK 4-network is £2.40 a month.
- Each SIM costs £2.00 once, whether a physical trio SIM (mini, micro and nano) or an eSIM delivered as a QR code.
- When a SIM uses its monthly allowance it pauses instead of charging overage; upgrade it straight away or wait for the reset.
- A failed card payment pauses new orders and plan changes, never SIMs already working in the field.
- No contract: pay monthly by card, or annually. Up to 25 SIMs can be ordered online; larger fleets are set up with us.
- Every SIM gets a private IP address; a static public IP is £8 a month. Private APN, IPSec VPN and cloud interconnect are available as extras.
- Europe (EU roaming) is priced per project.

## Plans and prices

Per active SIM per month, ex VAT. There is no monthly charge for a SIM until it is activated. Prices checked 2026-09-24.

### UK 4-network

Roams across all four UK networks and uses whichever is strongest where the device is.

| Data per month | Price per SIM per month |
|---|---|
| 50 MB | £0.90 |
| 250 MB | £1.20 |
| 1 GB | £2.40 |
| 5 GB | £8.85 |

### UK 3-network

Roams across O2, Vodafone and Three. Our lowest prices, for devices that don’t need EE.

| Data per month | Price per SIM per month |
|---|---|
| 50 MB | £0.65 |
| 250 MB | £1.15 |
| 1 GB | £2.25 |
| 5 GB | £8.20 |

### Europe

Roams across the EU, for kit that moves between countries or lives outside the UK.

| Data per month | Price per SIM per month |
|---|---|
| 100 MB | Price on request |
| 1 GB | Price on request |
| 5 GB | Price on request |
| 20 GB | Price on request |

- Prices per active SIM, ex VAT
- £2.00 per SIM, once: physical trio SIM or eSIM
- Delivery £3.99 per order for physical SIMs; eSIMs need none
- Private IP included
- Static public IP £8 a month
- Upgrade any SIM at any time, prorated

## Main

- [ThingSIM: IoT data SIMs](https://thingsim.com/index.md): ThingSIM sells IoT data SIMs for devices in the UK and Europe, billed only while each SIM is switched on.
- [ThingSIM at a glance](https://thingsim.com/at-a-glance.md): Plans, prices, networks and terms on one page.
- [Sectors](https://thingsim.com/sectors.md): How ThingSIM is set up for each kind of connected device.
- [Extras](https://thingsim.com/extras.md): Private APN, IPSec VPN, cloud interconnect and static public IPs.

## Developers

- [Developers: the ThingSIM API](https://thingsim.com/developers.md): List and control your SIMs, change plans, read usage and receive signed webhooks. The same API the ThingSIM portal uses.
- [API reference](https://thingsim.com/developers/api.md): Every endpoint of the IoT and Platform APIs, with scopes, parameters and example requests and responses.
- [Notification types](https://thingsim.com/developers/notifications.md): Every event the API can send to a webhook, with an example payload.

## Sectors

- [SIMs for alarms and signalling](https://thingsim.com/sectors/alarms.md): Intruder and fire panels, auto-diallers and lift lines moving off copper phone lines before the switch-off.
- [SIMs for 4G backup and router failover](https://thingsim.com/sectors/router-failover.md): A SIM in the office router that takes over the moment the broadband drops, and costs little while it waits.
- [SIMs for payment terminals](https://thingsim.com/sectors/payment-terminals.md): Card machines, kiosks and parking meters that keep taking payments when the venue’s Wi-Fi doesn’t.
- [SIMs for EV charge points](https://thingsim.com/sectors/ev-chargers.md): Charge points in car parks and on kerbs, talking to your back office whatever network is strongest there.
- [SIMs for CCTV cameras](https://thingsim.com/sectors/cctv.md): Cameras on building sites and remote yards, uploading clips or streaming back to your recorder.
- [SIMs for vehicle and asset tracking](https://thingsim.com/sectors/vehicle-tracking.md): Trackers in vans, trailers, plant and containers, reporting where things are from wherever they’ve got to.
- [SIMs for refrigeration and cold chain monitoring](https://thingsim.com/sectors/refrigeration.md): Temperature monitors in fridges, freezers, cold rooms and chilled vans, raising the alarm before stock is lost.
- [SIMs for traffic management](https://thingsim.com/sectors/traffic-management.md): Temporary lights, message signs and counters that move from job to job with the kit.
- [SIMs for metering and utilities](https://thingsim.com/sectors/metering.md): Water, gas and electricity loggers, sub-meters and level sensors reading remotely instead of by site visit.
- [SIMs for drinks dispense and vending](https://thingsim.com/sectors/drinks-and-vending.md): Cellar and dispense monitoring, coolers and vending machines reporting stock, temperatures and faults.
- [SIMs for digital signage](https://thingsim.com/sectors/digital-signage.md): Screens in shops, forecourts, stations and receptions, updated remotely without joining the building’s network.
- [SIMs for agriculture and environmental monitoring](https://thingsim.com/sectors/agriculture.md): Livestock collars, weather stations, soil probes and river monitors in fields and hills far from any router.
- [SIMs for construction sites](https://thingsim.com/sectors/construction.md): Site cabins, cameras, access gates and plant on temporary sites that are gone before a line could be installed.
- [SIMs for parking and smart places](https://thingsim.com/sectors/parking.md): Parking machines, bay sensors, counters, bins and lighting across car parks, towns and campuses.

## Guides

- [How ThingSIM billing works](https://thingsim.com/iot-sim-billing-explained.md): When billing starts, what happens at the data allowance, and why a device is never cut off over a bill.
- [UK 4-network vs 3-network IoT SIMs](https://thingsim.com/uk-4-network-vs-3-network.md): Which ThingSIM UK plan to choose, and when the cheaper 3-network plan is the right one.

## Optional

- [Privacy](https://thingsim.com/privacy.md): 
- [Terms](https://thingsim.com/terms.md): 

## Help

- [Questions](https://thingsim.com/help.md): The things people ask before and after ordering.
- [Talk to us](https://thingsim.com/contact.md): Fleets over 25 SIMs, Europe prices, pooled data, an API or any of the extras. Tell us what you are connecting and we will come back to you.

Everything on this site in one file: https://thingsim.com/llms-full.txt