SkyRC vs Motor Pitch Analyzer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SkyRC
Monitor and control your Multifunction Battery Charger in real-time. This app provides Bluetooth connectivity to display charging and discharging data for your Apple devices.
- Real-time charging/discharging data
- Bluetooth communication
- Monitor Apple devices (iPod, iPhone, iPad)
- Suitable for pilots and racers
- Portable computing integration
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SkyCharger seamlessly integrates advancements in portable computing with the Multifunction Battery Charger; bringing real-time monitoring to your Apple® devices such as the iPod, iPhone and iPad. With the Bluetooth communication, the SkyCharger can display your charger’s charging/discharging data. Whether you are an enthusiastic pilot demanding comprehensive charging data or an everyday sport racer looking for that high performance, the SkyCharger puts the charger at your fingertips.
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: SkyRC at 2.4 against Motor Pitch Analyzer's 1.0. SkyRC also leads on ads (none vs shown) and monetization model (free vs ad-supported). On price, update cadence, 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.
SkyRC holds the better App Store score, 2.4 against 1.0. That said, the two scores are not equally well evidenced: SkyRC has 10 ratings behind it against 1, so its average is the more settled of the two.
Both ship on a similar rhythm, roughly monthly. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.
| Parameter | SkyRC | Motor Pitch Analyzer |
|---|---|---|
| Price | Free | Free |
| Rating | 2.4 (10 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 30.8% of reviews | — |
| Number of ratings | 10 — better | 1 |
| Update frequency | Monthly | Monthly |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 53 MB | 103 MB |
| Age rating | 4+ | 4+ |
| Developer | SkyRC Technology Co.,Ltd. | Shiho Masuda |
Customer experience
SkyRC
Motor Pitch Analyzer
In-app purchases
SkyRC
No in-app purchases
Motor Pitch Analyzer
No in-app purchases
