# TCI Bitacora vs BPK

The clearest difference is update cadence: TCI Bitacora at fortnightly against BPK's every 5 weeks. TCI Bitacora also leads on 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.

TCI Bitacora ships an update fortnightly, BPK every 5 weeks. The most recent releases landed on October 26, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | TCI Bitacora | 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 | **Fortnightly** | Every 5 weeks |
| Monetization | — | Ad-supported |
| Size | 45 MB | 37 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Armando Montellano](https://appshunter.io/developer/1455567990) | [Sabhya Technologies LLC](https://appshunter.io/developer/1533158995) |

## What reviewers say

### TCI Bitacora

[App page](https://appshunter.io/ios/app/tci-bitacora/id1464209780)

**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 TCI Bitacora free?

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

### Is BPK free?

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

### Do TCI Bitacora or BPK have ads?

Neither TCI Bitacora nor BPK shows ads.

### Which is updated more often, TCI Bitacora or BPK?

TCI Bitacora ships an update fortnightly, and BPK every 5 weeks. Most recently, TCI Bitacora was updated on October 26, 2026 and BPK on November 3, 2026.

---

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