# Battery Level vs Idum Authenticator

The clearest difference is in-app purchases: Battery Level at none against Idum Authenticator's 3. Battery Level also leads on device support (3 vs 1) and iOS requirement (15.6 vs 18.0). Idum Authenticator's advantage is ads (none vs shown) and update cadence (every 2 days vs every 15 months). On price there is nothing between them.

Both are free to download. Idum Authenticator sells 3 in-app purchases, starting at $3.99 per 7 days. Battery Level asks for nothing beyond the download.

Battery Level ships an update every 15 months, Idum Authenticator every 2 days. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Battery Level | Idum Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1K ratings)](https://appshunter.io/ios/app/battery-level/id319724829/reviews)** | — |
| Number of ratings | **1K** | — |
| Positive reviews | 62.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 15 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 5 MB | 9 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kenneth Kao](https://appshunter.io/developer/288711611) | [IDUM](https://appshunter.io/developer/6776361265) |

## What reviewers say

### Battery Level

[App page](https://appshunter.io/ios/app/battery-level/id319724829)

This app displays your device's current battery percentage and offers comprehensive system monitoring. Track CPU usage, RAM, network activity, and system uptime with detailed graphs and statistics.

**Highlights:** Battery percentage indicator, CPU usage monitoring, CPU activity graph, System uptime tracking, RAM monitor, Network monitor

**In-app purchases:** none

**What reviewers like**

- 🚀 Great app!
- 👍 Guau
- 👍 Battery at a glance
- 👍 最高です！
- 👍 Genial

**What reviewers complain about**

- 🔋 But, please, make that text about battery percentage as thrice as larger - it's not very comfortable as a widget with its current size.
- 🐛 Sprache auf Deutsch
- 🔋 Ads
- 🔋 Publicidad
- 🐛 希望

**Reported bugs**

- Inaccurate battery percentage
- Drains battery quickly

**Requested features**

- Add icon badge with battery percentage
- Widget
- Charging complete notification
- Battery statistics
- Customizable background color


### Idum Authenticator

[App page](https://appshunter.io/ios/app/idum-authenticator/id6801459486)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Idum Authenticator Pro Weekly | $3.99 | per 7 days |
| Idum Authenticator Pro Yearly | $29.99 | per year |
| Idum Authenticator Lifetime | $69.00 | one-time |


## Frequently asked questions

### Is Battery Level free?

Battery Level is free to download, with no in-app purchases.

### Is Idum Authenticator free?

Idum Authenticator is free to download, with in-app purchases available.

### Do Battery Level or Idum Authenticator have ads?

Battery Level shows ads; Idum Authenticator does not.

### Which is updated more often, Battery Level or Idum Authenticator?

Battery Level ships an update every 15 months, and Idum Authenticator every 2 days. Most recently, Battery Level was updated on October 29, 2026 and Idum Authenticator on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*