Charge GO vs Motor Pitch Analyzer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Charge GO
Manage and operate compatible G-FORCE BT-LINK chargers. This utility app allows for seamless control of your charging devices.
- Manage BT-LINK chargers
- Operate charging devices
- Device control
- Charger management
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G-FORCE BT-LINK対応充電器の管理・操作を行う事ができます。
Motor Pitch Analyzer
Measure small motor rotation speed in real-time using your smartphone's microphone. View motor sound waveforms for rough guidance on shaft runout and brush conditions. Achieve better accuracy by narrowing the measurement range in a quiet environment.
- Real-time motor RPM measurement
- Motor sound waveform visualization
- Adjustable measurement range for accuracy
- Analysis of shaft runout and brush conditions
- Quiet environment measurement recommendation
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MotorPitchAnalyzer (MPA) is an app for measuring small motor rotation speed in real-time. Just bring the motor close to your smartphone's microphone for easy measurement! You can improve accuracy by narrowing the measurement range. The app shows the motor's maximum rotation speed based on stable rotation and frequency intensity. You can also quickly check for shaft runout and brush conditions by viewing the motor sound waveform in real-time (※ for rough guidance). Please measure in a quiet place for accurate results. Note that measurement accuracy may vary slightly depending on your iPhone or iPad's microphone performance.
Screenshots
Verdict
The clearest difference is rating: Charge GO at 5.0 against Motor Pitch Analyzer's 1.0. Charge GO also leads on ads (none vs shown) and monetization model (free vs ad-supported). Motor Pitch Analyzer's advantage is update cadence (monthly vs every 34 months). On price, ratings volume, 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.
Charge GO holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Charge GO ships an update every 34 months, Motor Pitch Analyzer monthly. Both last shipped on October 14, 2026.
| Parameter | Charge GO | Motor Pitch Analyzer |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 34 months | Monthly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 96 MB | 103 MB |
| Age rating | 4+ | 4+ |
| Developer | G FORCE, K.K. | Shiho Masuda |
Customer experience
Charge GO
Motor Pitch Analyzer
In-app purchases
Charge GO
No in-app purchases
Motor Pitch Analyzer
No in-app purchases
Questions
Is Charge GO free?
Is Motor Pitch Analyzer free?
Which has better reviews, Charge GO or Motor Pitch Analyzer?
Do Charge GO or Motor Pitch Analyzer have ads?
Which is updated more often, Charge GO or Motor Pitch Analyzer?
Other comparisons
