o46scope vs Vgent PdM
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
o46scope
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o46scope is an audio measurement app for iPhone and iPad that helps you visualize sound in real time. It supports oscilloscope and FFT spectrum display, allowing you to inspect waveforms and frequency components instantly. The app also supports internal signal generation with Tone1 / Tone2 and test signal (Beep) output, making it useful for quick checks, learning, and simple audio measurement tasks. Key features โข Oscilloscope display โข FFT spectrum display โข Signal tab for signal control โข Internal signal generation with Tone1 / Tone2 โข Speaker output for tones โข Test signal (Beep) output โข Adjustable parameters Premium Tone1 / Tone2 internal signal generation is available as a premium feature. It is available without ads. Ideal for users who want waveform visualization, frequency analysis, and signal generation in one app. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Vgent PdM
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Vgent helps maintenance teams inspect industrial equipment using vibration measurements and operating sound. Keep measurement points, reports and repair follow-up together for motors, pumps, fans, gearboxes and other equipment. CAPTURE VIBRATION OR SOUND Use the built-in microphone for acoustic inspections and unusual-noise checks. Vibration measurement requires a compatible, calibrated USB vibration sensor connected and bound to Vgent using its supplied pairing QR code. Acoustic recordings reflect changes in sound; they do not replace calibrated vibration measurements. BUILD REPEATABLE INSPECTIONS Create equipment records with photos, measurement locations, directions and operating conditions. Follow multi-point capture rounds, review progress and resume unfinished work. Generate equipment QR labels and scan them to find equipment already saved on your device. REVIEW THE EVIDENCE View overall and point-level reports, waveforms, spectra and capture quality. Add manual review labels to the relevant points while retaining the original diagnostic findings. Filter report history and export PDF reports for maintenance discussions. FOLLOW CHANGES AND REPAIRS Compare compatible measurements over time. Record repair actions, dates, outcomes and photos, then review suitable follow-up measurements. Preview the normal and abnormal samples used when rebuilding a device trend model. KEEP RECORDS ORGANIZED Export and restore complete backup folders through the system Files picker. Backup status helps identify changes since the last export. Optional data contribution is off by default and is separate from access to diagnosis features. OPTIONAL ON-DEVICE INTERPRETATION On supported devices, interpretation organizes saved diagnostic evidence for review without changing the original diagnosis severity. This feature requires iOS 26 or later, Apple Intelligence enabled, a ready on-device model and a supported app language. Reports and trend conclusions remain available when interpretation is unavailable. For useful comparisons, keep measurement location, sensor mounting or microphone position, and equipment operating conditions consistent. Vgent supports inspection and maintenance review; results depend on capture quality and the available evidence. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: Vgent PdM at every 5 days against o46scope's every 6 weeks. o46scope's advantage is iOS requirement (13.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. o46scope sells 1 in-app purchase, starting at $19.99 per year and Vgent PdM sells 2 in-app purchases, starting at $99.00 per month. Whichever you choose, the download price is not the number that matters.
o46scope ships an update every 6 weeks, Vgent PdM every 5 days. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.
| Parameter | o46scope | Vgent PdM |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 weeks | Every 5 days โ better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPad |
| Requires iOS | 13.0 โ better | 18.0 |
| Further details โ not scored | ||
| Size | 53 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Shinsuke Tsutsui | Shandong Yichuang Zhiwei Intelligent Technology Co., Ltd. |
In-app purchases
o46scope
- Premium7 Days trial$19.991 Year
Vgent PdM
- Vgent Vibration Monthly$99.001 Month
- Vgent Vibration Annual$999.001 Year









