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Closed beta

Join the beta

ChargeLog turns every plug-in into a recorded charging session: the power curve, the phases, the thermal events. It never touches the network.

Before it can be public on Google Play, Google requires a dozen people to run it for two weeks. This is that test, and I'd like you in it.

What a tester does

  1. Sign up with the account your phone uses

    Below. I add people by hand and send one email from hello@chargelog.org, usually within a day. If the test isn't open yet when you sign up, that email says when it will be, and the invite follows.

  2. Open the link on your phone and install

    It opts you in and takes you to Google Play. If you have a Pixel Watch, the watch app is in the same invite.

  3. Charge the way you always do

    There is nothing to configure. Every plug-in is recorded on its own, and nothing leaves the phone.

  4. Stay opted in for two weeks

    That is what Google counts. Dropping out early restarts the clock for you.

  5. Tell me what confused you

    A reply to the invite email is enough. Screenshots help.

Sign up

One address, one optional line about your phone. No account, no newsletter.

The account your phone uses for Google Play. The invite is matched to this exact address, so an alias or a work address only works if it is the one on the phone.

So I know which phones the beta has covered.

This stores the address, the phone you name, and the time in Cloudflare's key-value store — nothing else, no IP address, no browser details — only to add you to the Play tester list. It is deleted when the beta ends, or sooner if you ask at hello@chargelog.org. The privacy page says the same.

Why two weeks? Google's rule for a personal developer account: at least 12 testers opted in for 14 continuous days before an app can go public, and fewer than that means the test starts over. It also looks at whether testers actually used the app — which is why I'm asking people who charge a phone, not people who will install and forget.