Tools that do the sums for you.
Three free tools to find a trip eSIM, check what you pay and switch without the faff. No sign-up.
eSIM trip finder
Spin the globe, pick where you're going and see checked eSIM prices.
Plan my trip →Am I overpaying?
Tell us your bill and data use, and see how it compares with checked deals.
Check my bill →Switch this for me
Five stops from your old network to your new one, with the text codes ready.
Start my switch →
Use SimSift in ChatGPT or Claude
Add our read-only connector and ask your assistant for SIM-only deals or travel eSIM plans. It quotes our checked prices exactly, with the date we checked them, and links back here to compare and switch.
https://simsift.co.uk/mcp- Open Settings → Connectors.
- Choose Add custom connector.
- Paste the URL above and save. No sign-in needed.
- Ask: "SIM-only deals with 30GB under £15?"
- Open Settings → Apps → Advanced settings.
- Turn on Developer mode.
- Create an app and paste the URL above.
- Ask: "Which eSIM should I get for Japan?"
A listing in the ChatGPT app directory is on its way.
No sign-in needed. The connector only receives the search your assistant runs (such as a destination or data amount), never your chat history, and only reads our public price data.