Ionic Powercube Battery vs MainframeMonitor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ionic Powercube Battery
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An application that enables real-time viewing of battery power, alerts and other information
MainframeMonitor
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.
- 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)
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Turn your iPhone into a mainframe from the golden age of computing. MAINFRAME MONITOR shows your device's live stats wrapped in a nostalgic CRT console – complete with phosphor glow, scanlines, a boot sequence and satisfying key clicks. Choose between classic GREEN or warm AMBER, each with its own matching app icon. ■ LIVE SYSTEM MONITOR • Battery, CPU, memory and free storage • Uptime, network status and device info • All in real time, right on the glowing screen ■ HOME SCREEN WIDGET • Keep your key system stats always in view • In the same retro CRT style ■ REAL MAINFRAME FEELING • Authentic boot sequence on launch • Scanlines, glow and CRT effects • Terminal-style PF function-key controls ■ HIDDEN CLASSIC GAMES • Snake, Hamurabi, Void Patrol and Bagels • Text-based retro games, just like on the old terminals ■ FAIR & PRIVATE • Completely free • No ads, no trackers, no accounts • All data stays on your device Whether as a stylish system monitor, a home screen widget or a hands-on piece of computing history – MAINFRAME MONITOR brings back the charm of the old data centers. Made with attention to detail. Be sure to check out my other apps right inside the app.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Ionic Powercube Battery | MainframeMonitor |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 days — better | Every 10 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 65 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | LSV MANUFACTURING LLC | Ralf Langhoff |
In-app purchases
Ionic Powercube Battery
No in-app purchases
MainframeMonitor
No in-app purchases
Questions
Is Ionic Powercube Battery free?
Is MainframeMonitor free?
Do Ionic Powercube Battery or MainframeMonitor have ads?
Which is updated more often, Ionic Powercube Battery or MainframeMonitor?
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