BPK vs MountFinder Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BPK
This utility app measures common mode voltage on motor shafts to assess bearing discharge risk. It can also test the performance of bearing protection solutions, recording and maintaining readings for analysis.
- Measures common mode voltage on motor shafts
- Assesses risk of discharge through motor bearings
- Tests performance of bearing protection solutions
- Records and maintains readings
- Complete kit for testing
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Shaft Voltage Detection Device Helwig Carbon’s Shaft Voltage Detection Device otherwise known as the BPK-Probe™ is an instrument designed to measure common mode voltage on a motor shaft and determine the risk of discharge through the motor bearings. It also has the capability to switch in Helwig’s Bearing Protection solution. This feature allows the user to measure the performance of our grounding device and the risk of further damage to the motor bearings once installed. The BPK-Probe™ comes as part of a complete kit including everything you need to test motor shafts or other devices where damaging discharges may be present. This Mobile App is offered as a solution to record and maintain readings
MountFinder Pro
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MountFinder Pro combines vibration and sound analyzer and mount selection technology to help quickly identify the best anti-vibration mount using just your mobile phone. MountFinder Pro uses the phones in-built accelerometer to directly measure your machines vibration levels. This information, along with the number of mounts required and machine weight, is cross references with our product database to quickly identify which mount is right for your application. For hard to reach applications, MountFinder Pro can connect to an optional Bluetooth measurement device to record equipment vibration levels and provide the recommended mount solutions. MountFinder Pro also allows for the manual input of data to allow recocomendation of the the perfect anti-vibration mount solution.
Screenshots
Verdict
The clearest difference is update cadence: BPK at every 5 weeks against MountFinder Pro's every 5 months. 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.
BPK ships an update every 5 weeks, MountFinder Pro every 5 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | BPK | MountFinder Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (5 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 5 weeks — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 37 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Sabhya Technologies LLC | Trelleborg AB |
In-app purchases
BPK
No in-app purchases
MountFinder Pro
No in-app purchases









