A private iPhone dashboard for Charge Sessions and screen activity. BatteryLens shows what was actually observed — Measured, Estimated, or Manual — and keeps Coverage visible so gaps stay honest.
Panel surfaces the latest Charge Session — Measured, Estimated, or Manual — with Coverage always visible.
01 / PANEL
Latest Charge Session, with Coverage in view.
Panel centers the most recent Charge Session — duration labeled Measured, Estimated, or Manual — alongside Coverage so you always see how much of the window is explained.
Panel surfaces the latest Charge Session — Measured, Estimated, or Manual — with Coverage always visible.
02 / SCREENS
Observe duration. Respect boundaries.
01 / PANEL
Charge Session at a glance.
Panel shows the latest Charge Session with clear Measured / Estimated / Manual labels. No invented curves — only what the app can justify from observed samples.
Panel surfaces the latest Charge Session — Measured, Estimated, or Manual — with Coverage always visible.
02 / ACTIVITY
Private Report Mode boundary.
Activity correlates Usage Intervals with screen time cost under Apple’s protected-report boundary. It does not claim per-app battery drain percentages.
Activity shows screen time cost — not per-app battery percentages.
03 / SESSION
Samples, gaps, and Coverage.
Session detail walks through Battery Samples inside a Charge Session — where data exists, where gaps remain, and how Coverage summarizes what is known versus unknown.
Session detail shows samples, gaps, and how much of the window Coverage explains.
03 / SETUP
No account. Observation while the app is open.
BatteryLens records Battery Samples while you use the app and builds Charge Sessions from what is observed on your iPhone. No Gurfus cloud for your history.
01
OBSERVE
Open while charging
Samples accumulate while BatteryLens is active — observed duration, not claimed background telemetry.
02
COVERAGE
Inspect Coverage
Coverage shows how much of a session window has samples — uncertainty stays visible.
03
SNAPSHOT
Manual snapshot or Privacy
Add Manual battery snapshots when needed. Private Report Mode keeps protected Screen Time UI on-device.
04 / TRUST
Local-first, stated plainly.
Battery samples and Charge Sessions stay on your iPhone. No BatteryLens account. No Gurfus cloud sync for your battery history.
Screen Time and Private Report Mode render within Apple’s on-device boundaries — Gurfus does not receive protected report contents on a server.
Store listing not yet verified — informational status.
05 / FAQ
BatteryLens — FAQ.
Is BatteryLens free?
BatteryLens is in design preview with store listing not yet verified. This page provides product and privacy facts while that status is current.
Do I need an account?
No. BatteryLens does not create accounts or require sign-in.
Where is my data stored?
Battery Samples, Charge Sessions, and Usage Intervals are stored locally on your iPhone. Gurfus does not operate a cloud backend that receives your battery history.
Store listing not yet verified — informational status. This page provides product and privacy facts while that status is current.
What does Coverage mean?
Coverage is the share of a Charge Session window that has Battery Samples. Low Coverage means more of the session is unexplained — BatteryLens shows that honestly instead of filling gaps with invented data.
Does BatteryLens show per-app battery percentages?
No. Activity may correlate Usage Intervals with screen time under Private Report Mode, but BatteryLens never claims per-app battery causality or drain percentages.
