Seikyu: Invoice & Quote MakerSupport
Need help with Invoice Maker? Check the frequently asked questions below — if you can't find your answer, we're happy to help by email.
FAQ
Is there a monthly fee?
No. Invoice Maker is a one-time purchase. There is no subscription, no expiring trial, and no features locked behind extra payments.
Does it work offline?
Yes, completely. Invoice Maker needs no internet connection at all — create and share documents on a plane, on site, anywhere.
Does it support Japan's qualified invoice system (インボイス制度)?
Yes. Japan mode adds your registration number and a per-rate tax breakdown so your invoices meet the qualified invoice requirements. In countries where structured e-invoicing (such as CFDI, NF-e or FatturaPA) is mandatory for B2B, use Invoice Maker for quotes, receipts and records.
Where is my data stored?
Only on your device. There is no account and no cloud, and we collect nothing. Your data is included in your normal iPhone backup.
Which currencies are supported?
Invoice Maker automatically uses the currency and number format of your device, and you can change the currency at any time. Tax rates are freely configurable, so VAT, GST, sales tax and more all work.