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Support

How can we help?

Email support@sumocat.app and a person will answer. The answers to the most common questions are below.

Last updated November 3, 2026

Contact us

Write to support@sumocat.app. To help us answer quickly, include the email address on your Sumocat account, if you have one, and use one of these subject lines:

  • Bug report, for something that does not work as it should
  • Privacy request, to see, correct, export or delete your information
  • Question, for anything else

Never send us your password. We will never ask for it.

Common questions

Can I use Sumocat without an account?

Yes. Everything works on your iPhone without an account: the calculator, invoices, estimates, clients, expenses and receipt scanning. Your records stay on your phone until you sign in.

How do I get my records on a new iPhone?

Install Sumocat on the new phone and sign in with the same Sign in with Apple or email account. Your synced records download on their own. Records only sync once you have signed in on the old phone too.

I paid for Pro but the app does not show it.

Open the Pro screen in the app and tap Restore. Make sure you are signed in to the App Store with the Apple ID you bought Pro or Pro Plus with.

How do I cancel Sumocat Pro?

Apple bills Pro and Pro Plus, so you cancel in your Apple ID subscription settings: on iPhone, open Settings, tap your name, then Subscriptions. Your plan keeps working until the end of the period you paid for.

Why is one of my businesses read only?

Sumocat Pro Plus covers up to 5 businesses you own. Without it, the business you choose to keep stays fully editable and your other businesses become read only. Nothing in them is deleted: you can still open them, see their reports and export their records and PDFs. Renew Pro Plus, or choose that business as the one you keep, to edit it again. Without Pro Plus you can change the business you keep once every 30 days.

How do I delete my account and data?

In the app, open Settings, tap your account at the top, then tap Delete Account. This deletes your account and every organization only you belong to, with all of its records and stored receipts. It does not cancel a Pro or Pro Plus subscription; cancel that with Apple.

How do I turn off usage data?

Open Settings, Privacy, and turn off Share usage data. That stops every usage event and crash report from that device.

How do I take card payments on my invoices?

Online payments are part of Sumocat Pro. Open Settings, Online payments, and tap Connect Stripe. Stripe collects your business details; once it enables your account, turn on Accept payments and your invoice links get a Pay button. Only an owner or admin of your organization can change this.

How do payment reminders work?

With Sumocat Pro, turn on Send payment reminders in Settings, Payment reminders. Sumocat emails your client on the due date, then 3, 7 and 14 days after, while the invoice stays unpaid. You can turn reminders off for a single invoice on its detail screen.

My client says the invoice link does not work.

Share links need you to be signed in, with the document synced. Open the document in Sumocat, copy its link again and send that, checking the whole link was pasted. You can also share the PDF instead.

How do I report a bug?

Email support@sumocat.app with the subject Bug report. Tell us your iPhone model and iOS version, what you did, what you expected, and what happened instead. A screenshot or screen recording helps.

Read how we handle your information in the privacy policy, and the rules for using Sumocat in the terms of use.