QS Logs

QS Logs is a personal logging app for the things you want to keep an eye on:
how much water you drink, how you slept, when you last took something, how
your energy or mood is running.

You build the screen yourself out of tiles, and logging is one tap.

WHAT YOU CAN TRACK

• Counters — tap to record that something happened. Glasses of water, coffees,
walks, doses, cigarettes, anything you want a number for.
• States — pick from your own list of options. Energy: High, Steady, Low.
Anything with a small set of named values.
• Ratings — a slider on your own scale. Mood out of 10, sleep quality out of 5.

Every tile is yours: name it, colour it, set its scale, and drag the grid into
whatever order suits your day.

SEE WHAT ACTUALLY HAPPENED

• Switch the whole app between a day, a week, a month or a year, and step
backwards and forwards through time.
• A timeline of every entry, newest first, with anything logged by mistake
removable in a tap.
• Statistics per tile: totals, daily averages, and an activity chart showing
when you actually log rather than when you meant to.

Logging late is normal, so you can backdate an entry by up to 24 hours instead
of pretending you remembered at the time.

YOUR DATA STAYS YOURS

This is the part most trackers get wrong, so it is worth being precise:

• The app has NO INTERNET PERMISSION. Not "we promise not to upload" — it
cannot. You can check the permission list yourself, here on Google Play or
in Android's own settings.
• No account. No sign-in. The app never asks who you are.
• No analytics, no telemetry, no crash reporting, no advertising, and no
third-party SDKs of any kind.
• Android's automatic backup is switched off for this app, so your logs are
not quietly copied to Google or to your next phone.

BACKUPS YOU CONTROL

• Export a full backup as a .json file and import it back whenever you like.
• Optionally protect that backup with a password — it is then encrypted with
AES-256-GCM, and nobody without the password can read it, including us.
• Export your entries as .csv to chart them in a spreadsheet. (CSV is never
encrypted, because other software has to be able to open it.)
• You choose exactly where every file goes, through Android's own file picker.
• Erase everything from inside the app whenever you want.

Because nothing is ever sent anywhere, there is no account to delete and
nothing for anyone to hand over.

QS Logs records what you tell it and adds it up. It does not diagnose, advise
or interpret anything, and it is not a medical device.