Power Bank: Battery Reserve

LivePolyhistor30 apps · 110K installsToolsFreeIn-app purchases: $2.99 per itemcom.polyhistor.powerbank

Set aside battery in a hidden reserve and release it when you really need it

Alert me★ WatchOpen in Play ↗
Total installs
3
exact · Play shows 1+
Installs / day
+3
7-day avg · last day +3
Rating
—★
— ratings · — reviews
Released
3 Oct 2026
11d ago
Last update
8 Oct 2026
v1.0 · 5d ago
Countries
—
not checked yet

Installs per day

gain of the exact counter

+3 installsOur first day-to-day reading of the counter. The line starts with the next one.

Daily tracking since 11 Oct 2026 · history grows every day

Install history

exact counter from Google Play
0123411 Oct12 Oct

Daily tracking since 11 Oct 2026 · history grows every day

Change timeline

1 changesFull history
  1. Installs milestone
    0+1+

Country availability

Availability has not been checked for this app yet. “Check all countries” looks the app up in about 140 Google Play storefronts and shows where it is live, listed but not installable, or missing — plus any country-specific (custom) store listings.

Top countries

Country data will be available soon.

We estimate where downloads come from using the app’s position in Google Play’s top charts in about 140 countries. This app is not in any chart we have collected yet; the estimate appears as soon as it is.

Top chart positions

Not in any tracked top chart.

App manifest

Read this app's manifest from Google Play: permissions, declared SDKs, components and AdMob app ID. Saved analysis appears here automatically.

Manifest analysis reads only the required APK ranges. Base APK downloads may need separate device splits to install.

Data safety

declared by the developer on Google Play
  • No data shared with third parties
  • No data collected

This is the developer's own declaration, summarised from the Play listing. The permissions below show what the app is technically able to access.

Permissions

7 in 1 group
2 Sensitive2 Notable3 Routine

What this app can do with your phone

  • Show its own windows or bubbles on top of other apps you are using
  • Change protected system settings, like security options, that normal apps cannot touch
OtherSensitive7

Access to miscellaneous device features that don't fit other categories

  • Show its own windows or bubbles on top of other apps you are usingdraw over other apps · SYSTEM_ALERT_WINDOW
  • Change protected system settings, like security options, that normal apps cannot touchmodify secure system settings · WRITE_SECURE_SETTINGS
  • Start itself automatically as soon as your phone finishes turning onrun at startup · RECEIVE_BOOT_COMPLETED
  • Keep your phone's processor or screen from going to sleep, which can use more batteryprevent device from sleeping · WAKE_LOCK
  • Check whether you are online and whether you use Wi-Fi or mobile dataview network connections · ACCESS_NETWORK_STATE
  • Connect to the internet to load content and send datafull network access · INTERNET
  • Check with Google Play that you got this app legitimatelyGoogle Play license check · com.android.vending.CHECK_LICENSE

Sensitive = can reach personal data, location, camera/mic or act on your behalf. Notable = changes how your device behaves. Routine = normal for almost every app. Source: Google Play's permission list for all versions of this app.

Store listing

Full description
Power Bank keeps a battery reserve that your phone can't spend by accident. Deposit part of your charge, for example 20%, and Power Bank shows only the rest: in the status bar, in the notification, on the widget and in the floating bubble. You use your phone as if it had less battery left. When you really need it, release the reserve and the percentage jumps back up. No more low battery anxiety on the way home. Power Bank does not create energy and does not change your real battery. It changes the number you look at, and that changes how you use your phone. Unlike a classic battery saver that only tweaks settings, it helps your battery last longer by changing your habits. HOW IT WORKS • Deposit: move 5%, 10% or any amount of charge into the reserve. • Use your phone: the status bar shows the lower, spendable battery percentage. • Release: get the reserve back with one tap from the app, the notification, the widget or a Quick Settings tile. • Safety net: if your free charge runs out, the reserve is released automatically, so you are never stuck with a phone that says 0%. INCLUDED • Battery reserve with deposit and release • Battery percentage in the status bar, with an ongoing notification and quick actions • Estimated time left, learned from how fast your phone actually drains • Low battery warning and automatic release • Step-by-step guide to hide the system battery icon on Samsung, Pixel, Xiaomi, OnePlus and other phones • Small home screen widget • Light, dark and system theme, English and Hungarian • Statement for the current month POWER BANK PRO A one-time purchase unlocks the whole bank. You can try every Pro feature for 12 hours after installing. • Up to 5 vaults: separate reserves such as Travel, Emergency or Evening • Term deposits: lock a vault until a set time, or until your charge drops to 10% or 5% • Standing orders: automatic deposits when you unplug the charger, on a schedule, at 100%, or "pay yourself first" while charging • Floating battery bubble, or the bubble and the notification together • Time left shown right in the notification • Full statement history: every month's receipt with deposits, releases, broken locks and how many times the reserve saved you • Wide widget with deposit and release keys • Quick Settings tiles DESIGNED LIKE A DEVICE Seven-segment LCD digits, a cell-by-cell battery gauge and keys that feel like real buttons. Hold-to-break locks make you think twice before spending your reserve. WHO IT IS FOR • Anyone who gets nervous when the battery drops below 20% • Long days, commutes, travel, festivals and hikes far from a charger • People who want to spend less time on their phone • Anyone who wants an emergency battery reserve for calls, maps or tickets PRIVACY No account, no ads and no tracking. Your reserve, history and settings stay on your phone. Permissions are only used for what they are named for: notifications for the status bar indicator, display over other apps for the optional bubble, and starting after reboot so the indicator comes back. GOOD TO KNOW • Android always draws its own battery icon. Power Bank shows how to hide it in your phone's settings. On some phones this needs a one-time ADB command, which the app explains and lets you copy. • Power Bank uses very little power: it only reacts when the battery level changes.

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