Download

Android

Two builds. Take arm64 unless you know you need otherwise — it is every Android phone sold since about 2017, and roughly a third smaller. The universal build carries the code for all three processor types, so it works on anything, including 32-bit devices and emulators.

Installing an APK

Android blocks app installs from outside the Play Store until you allow them, one app at a time. Open the downloaded file and Android will offer to take you to the setting; you are granting permission to your browser or file manager, not to this app, and you can revoke it immediately afterwards.

You will see a warning that the app comes from an unknown source. That is accurate: it means Google has not scanned it, which is exactly what “installed outside the Play Store” means. Check the SHA-256 above if you want to confirm you have the file that was published.

The application asks for nothing on first run. The only permission it ever asks you for is notifications, and only at the moment you switch on your first reminder — decline it and that reminder simply does not turn on, and nothing else changes.

It requests no camera permission and no storage permission at all. A progress photo is taken by the camera app already on your phone, or chosen from your gallery; a backup or an export is written through the system’s own file dialog, into the folder you pick in it. Neither needs this application to hold a permission of its own, so it does not ask for one. The full list of what it does request is in the privacy policy.

Windows

Download the installer and run it. It installs for the current user, so it does not need an administrator.

Get-FileHash .\PrimeEdgeSystems-1.0.1-windows-x64-setup.exe -Algorithm SHA256

Linux

Two downloads. The .deb is for Linux Mint, Ubuntu and Debian: install it with your package manager and it appears in your applications menu. The tarball is for any other 64-bit distribution, or for running without installing anything system-wide.

The package

sudo apt install ./prime-edge-systems_1.0.1_amd64.deb

Or double-click it. apt rather than dpkg -i, so that anything missing is fetched instead of stopping. It installs to /opt/prime-edge-systems with a launcher at /usr/bin/prime-edge-systems, and sudo apt remove prime-edge-systems takes it out again. Removing it leaves your data alone.

The package is not signed by a distribution key, so your package manager will say it comes from an unknown source. That is what a package downloaded directly rather than from a repository looks like; the checksum above is how you confirm it is the one that was published.

The tarball

tar xzf PrimeEdgeSystems-1.0.1-linux-x64.tar.gz
cd PrimeEdgeSystems-1.0.1-linux-x64
./install.sh

No sudo. It installs for the current user only, into ~/.local, and writes nothing outside your home directory. A menu entry appears once it finishes. To remove it, run ./uninstall.sh from the same folder — it deletes the program and then asks, separately, whether to delete your data.

The 660,644-food library ships inside both downloads in thirteen pieces. install.sh joins them into one 295 MB file beside your database, checks it against its published hash and deletes the pieces, so the library costs 295 MB once — the same as on Windows. The .deb does the same join once for the whole machine, into /opt, and links it into each user’s data folder the first time they run it. (Because of that, dpkg -V will list the thirteen deleted pieces as missing. It is right, and it is deliberate.) If you unpack the tarball and run the binary without installing it, the application does the join itself on first launch instead, and the pieces stay.

Checking what you downloaded

Every checksum on this page is also in one file: checksums.txt. Compare the hash of what you downloaded against it. On Windows:

Get-FileHash .\<file> -Algorithm SHA256

On Linux or macOS:

sha256sum <file>

If a hash does not match, delete the file rather than opening it. That check is worth more than any signature this project could afford, and it costs nothing.

Where your data lives

Deliberately not your Documents folder. On Windows that folder is usually redirected into OneDrive, and a live database inside a cloud-sync folder is a documented way to corrupt it — besides uploading your measurements and photos to a third party without ever asking.

Moving between devices

Settings has a backup that writes one file containing your database and every photo. Copy it wherever you like and restore it on the other device. The backup is not encrypted, so keep it somewhere you would keep any other personal record.