# Battery Level - Portal — The cake is a lie

> Portal-themed battery monitor with audio announcements and customization. (iPhone/iPad app by An Trinh.)

- Source: https://appshunter.io/ios/app/battery-level-portal/id1458111693 (this page in markdown: same URL + `.md`)
- Developer: [An Trinh](https://appshunter.io/developer/441499584)
- Category: Utilities
- Price: Free
- Rating: 4.29/5 from 21 App Store ratings · 26 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 9 MB
- Languages: English
- Released: 2019-03-30
- Data updated: 2026-08-09
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/battery-level-portal/id1458111693/reviews.md

## What is Battery Level?

Hello and, again, welcome to the Aperture Science computer-aided enrichment centre.

Made for fans of Portal, this app allows you to monitor the current battery level of your device. As you charge your device, the battery level will be announced so you can passively keep track of it.

To access settings, tap on the Cake icon.

Features:
- Portal themed battery level monitor
- Battery level announcements: keep track of your battery percentage without looking at your device
- Portal soundboard
- Siri shortcut to get the battery level
- Change the app icon
- Switch between dark and light mode (via settings or swipe up/down with 2 fingers)
- Battery level announcements works with any language your device is set to

Inspired by the Portal game, this battery level monitor is loosely based on the Portal test chamber level signs.

Disclaimer: This is a third-party app made by fans of the Portal game, and is not affiliated with or endorsed by Valve Corporation, the Portal brand or Steam.

## Key features

- Portal themed battery monitor
- Battery level announcements
- Portal soundboard
- Siri shortcut
- Customizable app icon
- Dark/light mode switching

## Recent user reviews (10 of 26)

All indexed reviews: https://appshunter.io/ios/app/battery-level-portal/id1458111693/reviews.md

### 5/5 — Get this app bro

*2026-07-06, version 2*

As an avid fan of portal, this is an amazing app. The graphics and soundboard is cool and the portal theme is great. The only thing i would recommend is to add more voice lines from other characters.

### 4/5 — Doesnt Work :/

*2026-04-17, version 2*

I’m a HUGE fan of portal 1 and 2 but I’m a little sad because the app doesn’t work I opened it and it said 30% but when I checked my actual battery it said 28%

### 3/5 — Moyen

*2025-12-21, version 2*

L’app est pas mal mais c’est plus en gadgets que quelques chose d’utile.on l’oublie rapidement et on l’utilise rarement

### 5/5 — Battery level – portal

*2025-12-03, version 2*

I wish this was available on android for the tab S 11. It is the best battery checker I have found.

### 4/5 — The cake was not a lie

*2025-02-20, version 2*

Very good. Big fan of portal, but I have no idea how to open the settings. Probably being stupid tho, but has anyone got any idea how

### 1/5 — ehh

*2024-08-09, version 2*

not waht i thought it is

### 5/5 — The soundboard

*2024-04-01, version 2*

I really enjoyed the sound board Maybe add Different character AND WHERES MY LEMONS -C.J

### 4/5 — The soundboard only works over Bluetooth

*2024-03-02, version 2*

(The title above)

Ps: maybe do a text to speech along with the soundboard 

Pps: please fix these two things and add portal two, please

-SLY FOX

### 5/5 — J’aime

*2023-06-18, version 2*

J’aime

### 5/5 — For Fans, By Fans

*2023-06-07, version 2*

i was worried this was some random poorly-made portal-themed device widget made by a knockoff company, but i was wrong.
as an avid Portal fan, this is a very cool fanmade app! i love the main screen and soundboard. it'd be neat if you had a menu where you could choose different lines for the buttons to say instead of it being locked to the same ones. i also wish the voice that said the battery percentage was GLaDOS. there's a really neat A.I. voice generator called "uberduck AI" that has a really good GLaDOS voice that you could use for it 😁
the portal button sound when you open the menu is a nice touch, as well as the portal colored toggles. overall very good for a portal fan!

## Frequently asked questions about Battery Level

### What does this app do?

This app allows you to monitor your device's current battery level with a theme inspired by the Portal game. It provides audio announcements of your battery percentage as it charges, so you can keep track without constantly checking your screen.

### What are the key features of this app?

Key features include a Portal-themed battery level monitor, battery level announcements in any language your device is set to, a Portal soundboard, a Siri shortcut for battery level, the ability to change the app icon, and switching between dark and light modes.

### Is this app free to use?

Yes, the application is free to use. There are no in-app purchases or advertisements mentioned, indicating a completely free experience for users.

### How can I access the settings?

To access the app's settings, you can tap on the 'Cake' icon within the application. This will allow you to adjust various preferences, such as changing the app icon or switching between dark and light modes.

### Who is this app for?

This app is primarily designed for fans of the Portal game who are looking for a unique and themed way to monitor their device's battery life. It appeals to users who appreciate customization and subtle audio notifications.

## Version history (last 2 releases)

### 2 — 2021-02-21

- Fix issue where the announcements/soundboard was stopping your music from playing
- Hide status bar on main display

### 1.0 — 2019-03-30

No release notes.

## Apps similar to Battery Level

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Battery Life Health Doctor Pro](https://appshunter.io/ios/app/battery-life-health-doctor-pro/id1180887748) | 4.4 (7,889) | Free | Utilities |
| [Battery HD+](https://appshunter.io/ios/app/battery-hd-plus/id331453283) | 4.5 (2,596) | Free | Utilities |
| [Battery Widget: CPU x Monitor](https://appshunter.io/ios/app/battery-widget-cpu-x-monitor/id1571029388) | 4.4 (1,319) | Free | Utilities |
| [Battery saver - wifi analyzer](https://appshunter.io/ios/app/battery-saver-wifi-analyzer/id1178712789) | 4.2 (233) | Free | Utilities |
| [Battery Life - check runtimes](https://appshunter.io/ios/app/battery-life-check-runtimes/id1080930585) | 4.6 (33,586) | Free | Utilities |
| [Battery Monitor BM2](https://appshunter.io/ios/app/battery-monitor-bm2/id1115492033) | 4.2 (52) | Free | Utilities |

## More apps by An Trinh

- [Days since I had sex](https://appshunter.io/ios/app/days-since-i-had-sex/id441499581)
- [Make It Big](https://appshunter.io/ios/app/make-it-big/id479282584)
- [A Repeatable List](https://appshunter.io/ios/app/a-repeatable-list/id1528701640)
- [Pong AR](https://appshunter.io/ios/app/pong-ar/id1561416664)
- [Zen AF](https://appshunter.io/ios/app/zen-af/id1569426267)

All apps by An Trinh: https://appshunter.io/developer/441499584

## Related topics

[portal bridge](https://appshunter.io/ios/topics/portal-bridge) · [portal 2](https://appshunter.io/ios/topics/portal-2) · [battery percent](https://appshunter.io/ios/topics/battery-percent) · [battery level](https://appshunter.io/ios/topics/battery-level) · [apps for battery percentage display](https://appshunter.io/ios/topics/apps-for-battery-percentage-display)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-09.*