Not free
You have to agree to a purchase to use it at all. After three days if you forget to cancel it, it appears they charge you. This I gather from an email from the developer. It’s “opt out”, which is grossly unethical. They’re ripoff artists. Uninstalled.
Interpret this how you will: “If you had a free trial and haven’t canceled it, the account should have been charged only after the end of the trial period and then automatically according to the duration of your subscription plan. You can always cancel it through your device”
Frog Grigson about
Weather Live° - Local Forecast, v5.8