Privacy Policy
Last updated 31 October 2026
This policy explains what information the Electryx app for iPhone, iPad and Mac (“Electryx”, “the app”) handles and why. Electryx is developed by Andrii Sachok (“we”, “us”). If you have a question or request, write to support@electryx.example.
At a glance
- No account is needed. We never ask for your name, email address or phone number in the app.
- Your circuits, captures and settings stay on your device, plus your private iCloud if you turn on sync.
- Simulation and calculations run on your device. Your designs are never sent to us.
- The app sends anonymous usage statistics and crash reports through Google Firebase so we can fix bugs and improve features.
- We don’t sell your data, show ads, or track you across other companies’ apps and websites.
- Apple handles all payments. We never see your payment details.
- Optional VNTU student sign-in is checked directly with JetIQ. We never see or store your JetIQ password.
Information that stays on your device
Circuits, their names and notes, oscilloscope captures, calculator inputs and app preferences are stored on your device. Circuit simulation and calculations run locally. We do not operate a server that receives your designs.
When you export or share a file, image, PDF report or QR code, it can contain your circuit, its values, measurements and notes. You choose where it goes, and the recipient or app you share with handles that copy under its own practices.
iCloud sync (optional)
If you turn on iCloud sync, Electryx uses Apple’s CloudKit and your private iCloud database to keep saved circuits in sync across your devices. We cannot access your private iCloud data. Turning sync off stops future syncing but does not delete what is already stored in iCloud; you can manage that data in your Apple Account settings. Deleted circuits leave a small record so other devices don’t restore them. Apple’s privacy policy applies to iCloud.
Analytics and crash reports
Electryx uses Google Analytics for Firebase and Firebase Crashlytics, provided by Google. They help us understand which features are used and why the app crashes, so we can fix problems.
- Usage statistics: app opens, sessions, screens and basic feature events, app version, device model, operating system, language, approximate country or region derived from your IP address, and in-app purchase events.
- Crash reports: stack traces and technical details about the app, device and operating system when the app crashes, along with recent analytics events that led up to the crash.
- Identifier: a random app-installation identifier generated by Firebase. It is not linked to your name, email or Apple Account and resets if you delete and reinstall the app.
We never put circuit contents, search text, support messages or crash explanations into analytics events. Advertising features are turned off: Electryx does not collect the advertising identifier (IDFA) or the vendor identifier (IDFV), and analytics data is not used for advertising or ad personalisation.
We use this information on the basis of our legitimate interest in keeping the app reliable and improving it. Google processes it on our behalf and may process it outside your country, including in the United States. Analytics data is kept for the retention period configured for the app (at most 14 months), and Crashlytics keeps crash reports for 90 days. See Firebase privacy and security and Google’s Privacy Policy.
Online reference lookups
Datasheet Lookup and Component Analogues search external reference services for the part number or text you enter. Current sources include datasheets.md, Datasheet4U, datasheet.directory, Datasheet Catalog, Datasheet Archive, Wikipedia, Internet Archive and Source Research. Opening a result can also connect to the manufacturer or website hosting the document.
Those services receive your search and normal network information such as your IP address, and handle it under their own privacy policies. The app’s lookup requests use an ephemeral session without cookies. Please don’t enter confidential or personal information into reference searches. Downloaded documents may be cached on your device.
Camera and QR codes
If you scan a circuit QR code, Electryx asks for camera access for that scan only. The camera image is processed on your device to read the code and is never uploaded. You can change camera access at any time in Settings. QR codes you create contain circuit data, so share them only with people you intend to.
Purchases
Electryx Pro is sold through the App Store as an annual subscription or a one-time lifetime purchase. Apple processes the payment and manages billing, renewals and refunds. The app uses Apple’s StoreKit to show local prices, check trial eligibility, unlock Pro and restore purchases. We never receive your payment card details or Apple Account password. Losing Pro access never deletes your circuits or captures.
Student access
Students of Vinnytsia National Technical University (VNTU) who receive a student access link can unlock Electryx Pro for free by signing in with their JetIQ account. This is optional. When you sign in, the app sends your JetIQ login and password over HTTPS directly to VNTU’s JetIQ service (iq.vntu.edu.ua) only to confirm that you are a student. Your credentials are never sent to us, and the app never stores your password or JetIQ session. After a successful check, the app keeps your JetIQ user number, name, group and the verification date in your device’s keychain, synced through iCloud Keychain if you use it, so Pro stays unlocked on your devices. We never receive this information. It stays on your devices and in Apple’s end-to-end encrypted iCloud Keychain. VNTU processes your sign-in under its own policies.
Contacting support
Contact support in the app opens an email draft with your message and, if you choose, the app and operating-system versions. Nothing is sent until you send it from your mail app. We use what you send only to answer you and fix problems, and keep support emails only as long as needed for that.
Update checks
To tell you when a newer version is available, Electryx looks up the app’s public listing on Apple’s App Store lookup service using the app’s listing ID and your device region. Apple receives normal network information such as your IP address. Versions are compared on your device; updates are always installed by you through the App Store.
Sharing and selling
We do not sell or rent personal information, and we do not share it with third parties for their own marketing or advertising. Information is shared only with the service providers described above (Google Firebase and Apple), when you choose to share something yourself, or when required by law.
Your choices and rights
- Edit or delete circuits and captures in the app at any time.
- Turn iCloud sync off in Settings › iCloud, and manage iCloud data in your Apple Account settings.
- Allow or deny camera access in your device’s Settings.
- Manage or cancel subscriptions in your Apple Account settings.
- Deleting the app removes its local data and resets the analytics identifier. Copies you shared, iCloud data, device backups and App Store records are managed separately.
Depending on where you live, for example in the EEA, the United Kingdom or California, you may have the right to access, correct, delete or restrict the use of your personal information, to object to processing, and to complain to your local data protection authority. To make a request, email support@electryx.example. Because analytics and crash data are tied to a random identifier rather than to you, we may need that identifier, or may be unable to match the data to you.
Children
Electryx is a general-audience educational tool. It has no accounts or social features and does not ask for personal details. If you believe a child has sent us personal information through support, contact support@electryx.example and we will delete it.
Security
Data stored by the app is protected by your device’s built-in encryption and your Apple Account security. Network requests made by the app use HTTPS.
Changes to this policy
If our practices change, we will update this page and the date at the top.
Contact
Andrii Sachok, developer of Electryx. Email: support@electryx.example.