Privacy Policy

Last updated 21 September 2026

MacConvert is a file converter for macOS, iOS and visionOS made by Malcolm Stone ("we"). This policy explains what the app and its optional cloud service do with your data. The short version: conversions run on your device by default and nothing leaves it; the cloud service only ever holds what you deliberately put in it, and you can delete all of it, and your account, at any time from inside the app.

Converting files on your device

Every converter and tool in the app runs locally. Files you convert are read from where you chose them and written where you asked; they are not uploaded, analysed or logged by us. The app keeps a list of recent conversions and your preferences on your device (and, if you use several of your own devices, in your iCloud Keychain / app group as Apple provides). The Safari, Share, Action, Quick Look, Thumbnail, Intents, Widgets, Watch and iMessage extensions have the same behaviour: they hand files to the converter on the device.

The optional MacConvert account

Some features need an account: the synced cloud folder, cloud conversions for formats a phone cannot convert on its own, the Pro plan, extra storage and token packs, and pairing your devices with each other. If you never sign in, none of the following applies.

When you create an account we store:

DataWhy
Email address, username, display name, and the identifier Apple or Google gives us when you use Sign in with Apple / Google (never your password with those providers; a password you set with us is stored only as an argon2id hash)To create and secure your account, sign you in and contact you about it
Your devices: a device identifier, name, model, OS and app version, and a push-notification token if you allow notificationsTo sync between your devices, send you notifications you asked for, and pair devices
The files you put in the synced cloud folder or send for cloud conversion, with their names, sizes and checksumsTo store, sync and convert them for you
A history of cloud conversions (formats, size, duration, outcome) with the IP address and user-agent of the requestTo show you your history, apply your plan's quota, and detect abuse
Your plan, App Store transaction identifiers and token balanceTo unlock what you bought. Payment itself is handled by Apple; we never see your card

Files sent for cloud conversion are processed on our servers (Google Cloud, United States) and the result is returned to you; temporary copies are deleted after the job, and synced files are kept only as long as they are in your folder.

What we do not do

Who else processes data

Only the providers we need to run the service, acting under our instructions: Apple (Sign in with Apple, App Store purchases, push notifications), Google (Sign in with Google if you choose it, and Google Cloud, which hosts the service and its storage). Each is bound by its own contractual commitments to protect your data.

Retention and deletion

Your account data is kept while your account exists. You can delete your account from Settings › Account › Delete Account in the app (or by emailing us); this permanently removes your account, devices, synced files, history and profile within 30 days, apart from records we must keep for accounting. Removing a file from the synced folder deletes it from our storage.

Your rights

You can access, export, correct or delete your data at any time from the app, or by writing to us. If you are in the EEA, UK or another region with data-protection law, you also have the rights that law grants you, including the right to complain to your supervisory authority. We rely on the contract with you (providing the service you asked for) and our legitimate interest in keeping the service secure as the legal bases for the processing described here.

Children

MacConvert is not directed at children under 13 and we do not knowingly collect data from them.

Changes

If this policy changes materially we will note it here and, for account holders, in the app.

Contact

Malcolm Stone — malcolmstone11@gmail.com