Last updated: 12 October 2026
Ones and Zeros Technology Limited (“we”, “us”, “our”) of Queenstown, New Zealand, makes mobile apps. This policy explains what each of our apps does with information, and it applies to every app we publish under the Ones and Zeros name unless an app shows its own policy. It is written to comply with the New Zealand Privacy Act 2020 and with the policies of the Apple App Store and Google Play.
Our apps do not collect personal information. We run no accounts, no analytics, no advertising and no crash reporting, and nothing you do in an app is sent to us. Where an app connects to the internet, it connects only to services you can see and choose, and this policy says which.
No collection. We do not collect, store or transmit personal information about you. We have no servers that receive data from the apps, so we have nothing to sell, share or lose.
No accounts. None of our apps asks you to sign up or sign in with us.
No tracking. The apps contain no analytics, advertising, tracking or crash-reporting software, from us or from anyone else.
Your data stays on your device. Anything an app keeps, it keeps on your phone. We cannot see it, and deleting the app deletes it, except where this policy says a secret lives in the phone’s secure keystore and is removed when you remove it in the app.
App stores. Apple and Google handle the download, payment and update of our apps under their own privacy policies. They may tell us aggregate figures such as how many people installed an app, never who.
Permissions. An app asks for a device permission only for the feature that needs it, at the moment you use that feature, and uses it for nothing else. Each app’s permissions are listed below.
Open source. Where an app’s source code is published, as Simple Multisig’s is on GitHub, you can check for yourself that it does what this policy says.
Simple Multisig is a bitcoin wallet where spending needs more than one key. Everything it stores, it stores on your phone.
Private wallets, which do not use a group, never touch a relay.
Security mode. Three wrong PINs in a row erase every key, wallet, group and chat on the phone. This is a feature you turn on yourself, and it is described in the app before you do.
Boltcard NFC Programmer writes Lightning Network payment cards. The app does not collect, store or transmit any personal information. All operations, including reading and writing NFC cards and reading a QR code, take place locally on your device.
The app does not integrate with or use any third-party services, libraries or SDKs that collect data. Since no data is collected or transmitted, there is no server-side data for a breach to expose.
Our apps are not directed at children and do not knowingly collect information from anyone, children included.
Under the Privacy Act 2020 you can ask us what personal information we hold about you and ask for it to be corrected. Because our apps send us nothing, we do not expect to hold any; if you ask, we will confirm that and explain what the app keeps on your own device. If you are not satisfied with our response you may complain to the Office of the Privacy Commissioner, privacy.org.nz.
When we change this policy we update the date at the top and publish the new version at the same address. Continued use of an app after a change means you accept the updated policy.