Equalis
Equalis Privacy Policy
Last updated: 12 November 2026
This policy explains what information the Equalis Calculator app handles: what stays on your phone, what can leave it, and the choices you have. It is written for everyone who uses the app or visits this page.
This policy applies from the date shown as "Last updated" above.
The short version
- The app has no accounts and no cloud. Your calculations, notes and photos stay on your phone.
- The notes you keep in the app are encrypted on your phone. We cannot open them, and we cannot recover them.
- The app sends no usage statistics, crash reports or other information about you to us or to anyone else.
- Purchases are handled by Google Play. We never see your payment details.
- We show no ads, we do not track you across apps or websites, and we do not sell any data.
Who we are
Nazarii Medukha, a private entrepreneur registered in Ukraine, Tselinogradska St. 40, Kharkiv, 61000, Ukraine ("we"), publishes Equalis Calculator ("the app"). This policy is published at product-eyes.com. You can reach us at nazary21@gmail.com.
What stays on your phone
| Information | Where it is kept |
|---|---|
| Your calculations, calculator history and calculator settings | In the app's private storage on your phone, excluded from phone backups |
| Your notes, folders, the photos you add to notes, and the settings of the notes area | In an encrypted database in the app's private storage. The key depends on your code and on a random key held in your phone's secure storage. The database is excluded from phone backups and from transfers to a new phone |
| Your recovery questions | Encrypted, in the app's private storage |
| Your code and your recovery answers | Not stored anywhere. The app uses them only to unlock the keys that protect your notes |
| A record of wrong code attempts, used to slow down guessing | In your phone's secure storage |
None of this is sent to us or to anyone else, and we have no copy of it. Because nothing is backed up, uninstalling the app, resetting the phone or moving to a new phone deletes it.
Photos
The app uses your phone's system photo picker, which gives the app only the photos you choose. The app does not ask for permission to access your photo library or your camera. When you add a photo to a note, the app makes a copy, removes its location and other metadata, and stores the copy in the encrypted database. The original stays in your photo library until you delete it there.
What the app never collects
- Your name, email address, phone number or any account details. The app has no accounts.
- The content of your notes, their titles, your photos, your calculations or your calculator history.
- Your code, your recovery questions or your recovery answers.
- Your contacts, your location or your phone's advertising identifier.
- Usage statistics, crash reports or any record of how you use the app.
The app never asks for permission to use your camera, photo library, microphone, contacts, location or notifications. It uses the network only for purchases.
Purchases
Pro is a one-time purchase made through Google Play. Google Play handles the payment under its own terms and privacy policy, and we never receive your card or bank details. To know whether Pro is active, the app asks the Google Play app on your phone, which may contact Google's servers. The app keeps the result inside its encrypted database.
Google Play gives us limited information about each order: the order number, the date, the item, the price, and any taxes and fees. We can also look up an order by the buyer's email address when you ask us about it. We use this information only for refunds, accounting and taxes.
Connections the app makes
The app connects only to Google Play, for purchases. It does not download code or content from the internet, so the app on your phone is exactly the version that Google Play reviewed. When you open this policy from the app, it loads from product-eyes.com in your browser.
Contacting support
If you email nazary21@gmail.com, we receive your email address and your message. We use them only to answer you, and we delete them 12 months after your last message, or earlier if you ask. The emails are kept in our Gmail account, which Google provides. Never send us your code, your recovery answers or the content of your notes. We will never ask for them, and we could not use them to recover anything.
Keeping and deleting your information
- On your phone. You can delete the notes area and everything in it at any time with Erase in its settings. You can clear the calculator history in the calculator settings. Uninstalling the app deletes all of its data.
- Purchase records. We keep order details for as long as the law requires for accounting and taxes.
- Support emails. As described in "Contacting support".
Your rights
Depending on where you live, for example in the European Economic Area, the United Kingdom or California, you may have the right to access, correct or delete personal information about you, to object to its use and to complain to a data protection authority. Because the app collects no name, account or identifier, the only personal information we may hold about you is a support email or an order. Write to nazary21@gmail.com and we will help.
We do not sell or share personal information for advertising.
Children
The app is meant for adults aged 18 and over and is not directed at children. We do not knowingly collect personal information from children. If you believe a child has sent us personal information, for example in a support email, contact us and we will delete it.
Security and its limits
Your notes are encrypted on your phone, the keys never leave it, and wrong codes are slowed down. These protections have limits that no app can remove: someone who watches you type your code or who knows your recovery answers can open your notes, and the app cannot protect against malicious software or forensic tools on an unlocked phone. If you forget both your code and your recovery answers, nobody can recover your notes, including us.
International transfers
The app sends nothing to us. Google processes purchase information and the emails you send us under its own policies, which may include processing outside your country.
This website
This page is published on product-eyes.com, hosted by Vercel, which processes technical request data, such as IP addresses, to deliver the site and protect it. The website uses no analytics and sets no cookies.
Changes to this policy
When we change this policy, we publish the new version on this page with a new "Last updated" date. Earlier versions are available on request.
Contact
Nazarii Medukha, private entrepreneur
Tselinogradska St. 40, Kharkiv, 61000, Ukraine
nazary21@gmail.com