# DS vs BPK

The clearest difference is update cadence: BPK at every 5 weeks against DS's every 28 months. DS's advantage is iOS requirement (11.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

DS ships an update every 28 months, BPK every 5 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | DS | BPK |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (5 ratings)](https://appshunter.io/ios/app/bpk-probe-datalink/id1547084540/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 28 months | **Every 5 weeks** |
| Monetization | — | Ad-supported |
| Size | 34 MB | 37 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [JB Industries, Inc.](https://appshunter.io/developer/977734857) | [Sabhya Technologies LLC](https://appshunter.io/developer/1533158995) |

## What reviewers say

### DS

[App page](https://appshunter.io/ios/app/ds-250/id1509336200)

**Features:** macOS Compatibility

**In-app purchases:** none


### BPK

[App page](https://appshunter.io/ios/app/bpk-probe-datalink/id1547084540)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is DS free?

DS is free to download, with no in-app purchases.

### Is BPK free?

BPK is free to download, with no in-app purchases.

### Do DS or BPK have ads?

Neither DS nor BPK shows ads.

### Which is updated more often, DS or BPK?

DS ships an update every 28 months, and BPK every 5 weeks. Most recently, DS was updated on October 25, 2026 and BPK on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*