Privacy policy — ZRSoftware
Last updated: 8 November 2026
ZRSoftware is a mobile client for a ZRSoftware.Cloud site: a service that a customer runs on their own PC to read energy meters and keep their readings. The app shows what that site has read and can ask it to read again. It is not a service we operate on your behalf, and apart from its built-in demo it is not useful without a site of your own.
This decides where your data goes: almost nothing comes to us. Your account, your meters, your readings and your reports live on your own site. This app talks to that site.
Who is responsible
Z Telemetri Telekomünikasyon Yazilim San. Ve Tic. Ltd. Şti.
Mutlukent Mah. Arda Sokak No:5 06800 Cankaya Ankara TURKIYE
Questions about this policy, and requests about your data: info@ztelemetry.com
The company-level policy, which covers our website and our relationship with customers generally, is at https://redz-sc.com/privacy-policy.html (opens in a new tab). Where the two differ about this app, this page is the one that describes the app.
The demo
"Try the demo" on the first screen runs the app against sample values built into the app. In the demo nothing is sent anywhere and nothing is asked of you.
What the app keeps on your phone, and only there
- the address of the relay and the name of your site on it
- a key belonging to this phone, issued by the relay when the phone was paired with your site
- your session, so you are not asked to sign in every time
- if you chose "Remember this phone", a token from your site that says so
- the last user name you signed in with, and the last few relay addresses you used
- the Excel and PDF files you downloaded from your site (the last 20, in the app's own cache)
The first five are held in the phone's encrypted storage. None of this is sent to us.
What the app sends, and where
To your own site, through the relay described below:
- your user name and password when you sign in, and the code your site mails to you if it asks for one
- the token that says this phone is remembered, if you chose that
- what you ask for: the screens you open, the range of an analysis, a file to download, and - for an Operator - a request to read a meter or run an export
To the relay, when the phone is paired:
- the eight-character setup code your site showed, and a label for the phone ("Android phone (ZRSoftware)") so it can be recognised in a list
After that, every request carries this phone's key, so the relay knows the phone is allowed to reach your site.
To Google, only when you use the camera to scan a setup code:
- the code scanner is Google's ML Kit, and it runs on the phone. Google's ML Kit reports diagnostics and usage information to Google: the device's make, model and operating system version, this app's name and version, an identifier for this installation of the app, performance figures and error codes. It does not include the camera image. Google describes this at https://developers.google.com/ml-kit/android-data-disclosure (opens in a new tab). If you type the setup code by hand instead, the scanner is not used.
The relay
Your site does not accept connections from the internet. Instead it makes an outward connection to a relay we operate, and the app meets it there. The relay passes traffic between the two over an encrypted connection. It is not where your account, your readings or your reports live, and it is not a copy of your site.
What the app does not do
- no advertising, and no advertising identifier is read
- no analytics of our own, and no crash reporting service; the only usage information that leaves the phone is ML Kit's, described above
- nothing is sold, and nothing is shared with third parties for their own purposes
- no location, no contacts, no photos, no microphone, no notifications
- no access to your files: the app keeps the files you download in its own storage and passes one on only when you tap Share and choose where it goes
The camera
The app asks for camera permission to read the setup code as a QR code. The camera is used on that screen and nowhere else; the image is read on the phone and is not stored or sent. If you would rather not give camera permission, the same code can be typed in by hand.
How to have your data deleted
Data about you can be in three separate places, and each has its own step. Follow the ones that apply to you.
- On your phone - you do this yourself, and it takes effect at once. Signing out of the app removes your session from the phone. "Forget this site" removes everything else the app stored for the site: the site address and name, this phone's key, the "remember this phone" token, the last user name, the relay addresses you used and the downloaded files. It is in the app's menu, and on the Site setup screen (the gear on the sign-in screen) for when you cannot sign in. Forgetting sends nothing, so the relay's record of the phone and the phone your site remembers stay until they are removed as described below; your site also stops remembering a phone by itself after a period set on the site (30 days unless it was changed). Uninstalling the app, or clearing its storage in Android's settings (Settings, Apps, ZRSoftware, Storage, Clear storage), also removes all of it.
- Your account and everything it can see - your site's administrator does this. Your account, your meters, your readings and your reports live on your own ZRSoftware.Cloud site. Ask its administrator to remove your account, or to forget the phones remembered for it. We hold no copy of any of it and cannot delete it for you.
- What our relay holds about your phone - write to us. Send a request to info@ztelemetry.com saying which site the phone was paired with. We remove that phone's record from the relay, and the phone can then no longer reach the site.
What is deleted, what is kept, and for how long
- Never stored by us. Your user name, your password, the mailed code, your readings and your files pass through the relay in transit only.
- Kept until we remove it at your request or your site owner's. For each paired phone: a one-way hash of the phone's key, its label, and the times the record was created and last used. This is what the request above removes.
- Kept for ten minutes, and single use. A setup code, stored as a one-way hash. It works once, for one phone, and expires after ten minutes; used and expired codes are deleted the next time a code is made for that site.
- Kept on your own site for as long as your site keeps it. Your account, readings and reports follow your site's own settings, which your administrator controls, not us.
- Kept on your phone until you forget the site, uninstall the app or clear its storage. As described in the first step above. Signing out removes the session at once; a session also ends by itself after eight hours, or, if you chose "Keep me signed in", when your site's trust in the phone ends.
- Google's diagnostics from ML Kit are kept according to Google's own terms.
If you believe we hold personal data about you as a customer of ours rather than as a user of this app, the rights described in the company-level policy apply, and the contact address above is the way to exercise them.
Children
The app is a tool for reading industrial and building energy meters. It is not directed at children and is not designed for them.
Changes
If this policy changes, the date at the top changes with it, and the previous text is replaced at this same address.