No tracking
A workout app that
does not watch you back
No analytics SDK, no advertising, no crash reporting, no third-party requests. Not "privacy-focused" as a slogan. Verifiable, and here is how to check it yourself.
What fitness apps usually collect
A typical free fitness app carries several software development kits you never asked for: an analytics SDK recording which screens you open and for how long, an advertising SDK building a profile to target you with, a crash reporter shipping device details, and often an attribution SDK working out which advert brought you in.
Health data is unusually revealing. When you train, how often you stop, how your performance moves over months. It is worth more to an advertiser than almost anything else you generate, which is precisely why so many free fitness apps are free.
What Alea collects
Nothing. Not "anonymised" or "aggregated". There is no collection step.
| Component | In Alea |
|---|---|
| Analytics SDK | None |
| Advertising SDK | None, and never will be |
| Crash reporting | None |
| User accounts | None needed |
| Backend server | None |
| Cookies on the website | None |
Where your training actually lives
Roll history, streak, lifetime totals, dice configuration and your optional display name are written to local storage on the device. The app has no code that transmits them anywhere, because there is nowhere for them to go.
Even the multiplayer is serverless
Duels are the one feature that would normally require a backend. Instead the whole challenge is encoded into the link you share, so a duel exists only in the messages between two people. No match is recorded anywhere.
How to verify this yourself
Privacy claims are cheap. These are checkable in about a minute each, and you should not take our word for any of them.
Check this website
Open your browser's developer tools, go to the Network tab, and reload any page on this site. Every request goes to aleacalisthenics.com and nowhere else. The fonts are self-hosted, the badges are self-hosted, and there is no analytics script. No cookies are set either.
Check the Play listing
Google requires a Data Safety declaration on every app. Ours states that no data is collected and none is shared. That is a declaration Google can act on if it is false.
Check the app on your own network
Put the phone in airplane mode and use the app. Everything except sharing a link keeps working, which is only possible because nothing needed a server in the first place.
Why it is built this way
Alea is made by one person who works in search and analytics for a living. Spending your days measuring how people behave online makes the amount of measurement baked into ordinary software very hard to unsee.
There is also a simpler reason: no tracking means no servers, no data protection liability and no breach to disclose. The privacy position is not a marketing angle bolted on afterwards. It is the cheapest and most robust way to build this particular app.
Train without being measured
Free on Google Play. No ads, and there never will be any.
Android · Free · No account needed · No ads, ever
Related
Privacy FAQ
Does Alea collect any personal data?
No. There is no account, no email and no identifier. The app contains no analytics, advertising or crash-reporting SDKs, so there is no collection step to opt out of.
Does Alea show ads?
No, and it never will. That is a permanent commitment rather than a current state of affairs.
Is my workout history uploaded anywhere?
No. It is written to your phone's local storage and stays on the device. There is no server to upload it to.
How do duels work without a server?
The entire challenge is encoded inside the link you share. A duel exists only in the links exchanged between two people, so no match is stored anywhere.
Does the website track visitors?
No. It sets no cookies and makes no third-party requests at all. Fonts and badges are served from our own domain rather than from Google or anyone else. You can confirm this in your browser Network tab.
How can I verify these claims?
Check the Network tab on this site, read the Data Safety section of the Play listing, and try the app in airplane mode. All three are quick and none of them rely on trusting us.
If paid features arrive, will that change?
No. Paid extras would be optional additions on top of a permanently free app. The no-ads and no-tracking commitments are not conditional on monetisation.