# Ionic Powercube Battery vs MainframeMonitor

The clearest difference is update cadence: Ionic Powercube Battery at every 3 days against MainframeMonitor's every 10 days. Ionic Powercube Battery also leads on iOS requirement (12.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Ionic Powercube Battery ships an update every 3 days, MainframeMonitor every 10 days. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Ionic Powercube Battery | MainframeMonitor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mainframemonitor/id6809454680/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 10 days |
| Monetization | — | Free |
| Size | 65 MB | 24 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [LSV MANUFACTURING LLC](https://appshunter.io/developer/1849312579) | [Ralf Langhoff](https://appshunter.io/developer/1706183785) |

## What reviewers say

### Ionic Powercube Battery

[App page](https://appshunter.io/ios/app/ionic-powercube-battery/id6754623100)

**Features:** macOS Compatibility

**In-app purchases:** none


### MainframeMonitor

[App page](https://appshunter.io/ios/app/mainframemonitor/id6809454680)

Transform your iPhone into a vintage mainframe with a nostalgic CRT display. Monitor live system stats like battery, CPU, and memory, all within an authentic retro console experience. Includes hidden classic text-based games.

**Highlights:** Live system monitoring (battery, CPU, memory, storage), Home screen widgets, Authentic CRT effects (glow, scanlines), Retro boot sequence, Hidden classic text-based games, Customizable color themes (Green, Amber)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ionic Powercube Battery free?

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

### Is MainframeMonitor free?

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

### Do Ionic Powercube Battery or MainframeMonitor have ads?

Neither Ionic Powercube Battery nor MainframeMonitor shows ads.

### Which is updated more often, Ionic Powercube Battery or MainframeMonitor?

Ionic Powercube Battery ships an update every 3 days, and MainframeMonitor every 10 days. Most recently, Ionic Powercube Battery was updated on October 16, 2026 and MainframeMonitor on October 14, 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.*