Last updated: 2026-10-11
Voltsy ("the app") is a battery-care companion for iPhone. We designed it to keep your data on your device.
Battery readings on your device. Voltsy records approximate charge level, charge/unplugged/full state, Low Power Mode, and the system thermal level over time to power Volt's reactions, your care score, streak, and history. This data is stored only on your device (and, for the widget and Live Activity, in a private app-group container on your device). We do not upload it to any server. Voltsy has no account. Optional app recommendations use the separate service described below.
Voltsy uses only Apple's public battery APIs. It cannot read Apple's official battery health percentage, cycle count, capacity, voltage, temperature in degrees, or any private hardware data. Every health/care figure shown is an on-device estimate.
The free version shows ads via Google AdMob. To do this, the Google Mobile Ads SDK may access advertising identifiers and device information to serve and measure ads. Depending on your region, you will be asked for consent (GDPR) and, on iOS, for App Tracking Transparency permission; you can decline and still use the app with non-personalized ads.
Voltsy Pro removes Google AdMob ads. Pro users see no AdMob tracking/consent prompts. Recommendations for our other apps remain available as described below.
In the Alerts settings, the app can fetch up to three recommendations for our other apps. The choices depend on the app you are using, App Store availability and iOS compatibility, not on your personal data or activity inside the app. App icons load from Apple’s image servers. Opening a recommendation takes you to the App Store with a campaign label identifying the source app and placement, never a person.
We count qualified views and successful opens in aggregate. Our service stores daily counts with the source app, recommended app, placement, configuration revision and optional presentation variant. It does not store an account, advertising identifier, device identifier, persistent visitor identifier or personal profile, and it does not receive the app’s private content. These counts cannot tell us who installed an app.
The recommendation service is hosted by Supabase. Network requests necessarily expose an IP address to the hosting provider for delivery and security; our aggregate counter does not store it. See Supabase’s privacy policy. Apple processes icon requests and App Store visits under Apple’s privacy policy.
Voltsy Pro is a one-time purchase processed by Apple. We do not receive your payment details; Apple handles the transaction and tells the app only whether you own Pro.
Voltsy is not directed at children under 13.
This website uses Vercel Web Analytics. It works without cookies, sets no identifier and builds no profile of you. It counts page views and clicks on the App Store button, recording only which button on which page was used. The provider is Vercel Inc., 440 N Barranca Avenue #4133, Covina, CA 91723, USA. Their privacy policy is at vercel.com/legal/privacy-policy. There is no personal evaluation and nothing is passed on to anyone else.
Questions: levin.schwab@gmx.de