An account lets a service tie every session to a person, keep that history on its own infrastructure, and decide later what it is worth. That is a reasonable business, but it is worth naming, because the features you get in exchange — a timer, a log, a chart — do not technically require any of it.
cronoWiz is built the other way round. There is no registration, no email field, no cloud profile. Workouts, routes, weight log, heart-rate history and preferences live in IndexedDB on the device you are using. Delete the app and they are gone, with nothing left on a server, because there is no server holding them.
The cost of that choice is real and worth stating: your data is on one device, and moving it is your job. There is an encrypted backup file and a direct device-to-device transfer, and no "restore from cloud", because there is no cloud to restore from.
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Nothing to sign into
no registration anywhere in the app, on any platform.
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No backend receives anything
it is a static app: there is no server that could collect a session.
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The backup is a file
encrypted with a passphrase you choose, stored wherever you like.
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The trade-off, said out loud
one device at a time, and you move the data yourself.
Free. Private. Yours.
No account. No server. No cookies. Just you, your phone, and an app that minds its own business. cronoWiz is a free PWA that runs entirely on your device — your data never leaves. Ever.
The questions people actually ask
How do I use it on two devices?
Export an encrypted backup and import it on the second device, or open a direct transfer with a six-character code and send it peer to peer. The file does not pass through a server either way.
What happens if I lose the phone?
Whatever was only on that phone is gone. That is the honest consequence of having no cloud copy, and it is why the encrypted backup exists — put it somewhere you control.
Are there cookies or analytics inside the app?
No. The app sets no cookies and contains no analytics. The marketing site measures page views with a first-party pixel and no cookies; the app itself measures nothing.
Is it really free?
Yes, with no paid tier. There is nothing to unlock, and no advertising.