Privacy Policy

Last updated: 17 June 2026

1+1 Calculator is built to do one thing: math. It collects no personal data, shows no ads, and tracks nothing. This page explains that in full.

The short version

The 1+1 Calculator app doesn't collect, store, or share any personal information. There are no accounts, no ads, no analytics, and no third-party tracking. Your calculations never leave your device. The only time we receive any information is if you choose to contact us through the support form — see Support requests below.

Information we collect

In the app, none. 1+1 Calculator does not ask for your name, email, location, or any other personal information, and it contains no advertising or analytics software that would collect it in the background. The one exception is the support form on this website, which you only use if you choose to contact us — see Support requests below.

Your data stays on your device

Everything you create in the app — your calculation tape, tabs, saved memory values, and settings — is stored locally on your device only. We have no servers that receive it and no way to see it.

Purchases

The optional "Infinity" unlock is sold and processed entirely by Apple through the App Store. We never see or receive your payment details. To confirm whether you own Infinity, the app asks Apple's StoreKit for your purchase entitlement on your device; no personal information is sent to us in the process.

Apple's handling of your purchase is governed by Apple's Privacy Policy.

Support requests

If you contact us through the form on our support page, the information you choose to send — such as your email address, the message you write, and any device or app details you include — is submitted through that form so we can read it and reply to you. We use it only to respond to your request and don't use it for advertising, analytics, or marketing.

The form is provided by Tally, which stores the submissions on our behalf so we can access and reply to them. Tally's handling of that data is governed by Tally's Privacy Policy. If you'd rather not use the form, you don't have to — it's only there for when you want to get in touch.

What we don't do

Beyond replying to support requests you send us, the app:

  • Has no advertising or ad networks.
  • Has no analytics, crash tracking, or usage measurement.
  • Contains no third-party SDKs that collect data.
  • Doesn't sell or share your data.

Children's privacy

The 1+1 Calculator app does not collect data from anyone, including children, and is safe for users of any age. The support form is intended for general help requests rather than for children.

Changes to this policy

If the app ever changes in a way that affects this policy, we'll update this page and revise the "last updated" date above.

Contact

Questions about privacy? Reach us through our support page.