Perchain Support

Support

サポート

Perchain is a manual money-chain calculator for tax, fees, shipping, discounts, and user-entered exchange rates. This page covers common questions and support contact details.

Before you contact support

  • Check the app version in Settings or the App Store.
  • Check your iOS version and device model.
  • Write down the steps and values that produced the unexpected result.
  • If the issue involves exchange rates, include the source currency, target currency, and rate direction you entered.

Does Perchain fetch live exchange rates?

No. Perchain uses the rate entered by the user. This keeps each calculation transparent and editable.

Where are templates and history stored?

Templates and calculation history are stored locally on the device for the app features that need them.

Is Perchain financial or tax advice?

No. Perchain is a calculation tool. It does not provide financial, investment, accounting, tax, or exchange-rate advice.

Why does rate direction matter?

Currency conversion changes the amount's currency. For example, "1 USD = 160 JPY" is different from "1 JPY = 0.00625 USD". Check the source and target currencies before saving a template.

Support contact

For support questions, contact [email protected]. Please include your app version, iOS version, device model, and a short description of the issue.

Public support address: [email protected]