Comparison

PR electronics PPS vs SKF Shaft alignment

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

PR electronics PPS

This app allows for smart control, monitoring, and programming of specific signal conditioning devices remotely via Bluetooth. It provides live data, detailed parameter views, and configuration management for technical staff and plant operators.

Highlights
  • Remote device monitoring
  • Remote device programming
  • Live data display
  • Configuration saving and sharing
  • Intuitive user interface
  • Data logging
Features
Read full description

The PR electronics Portable Plant Supervisor - PPS - app enables smart control, monitoring and maintenance of PR electronics' signal conditioning devices with mounted communication enabler, i.e. devices in the PR-4000 and PR-9000 series. The app shows live data – directly from the signal conditioning device – anywhere at any time. It is designed for technical and maintenance staff as well as plant operators working in process and factory automation industry. All you need, to set-up a user friendly remote interface for monitoring and programming of your devices, is to download the app and connect to the communication enabler attached onto the signal conditioning device using Bluetooth. Requirements: • Data can be monitored and devices can be programmed remotely using the PPS app in connection with a 4512 communication enabler mounted on a device in the PR-4000 series or the PR-9000 series. Supported devices: • Devices in the PR-4000 series with mounted communication enabler. • Devices in the PR-9000 series with mounted communication enabler. Features: • Remote device monitoring, simulation and programming. • Detailed view of all parameters, monitoring, programming, simulation, discovery, features for PR devices, additional graph functionality for selected functions, connection quality • Intuitive user interface • Start, stop and share logging of data. • Save and share your configuration for documentation or future use. • Load an already saved configuration onto a similar PR-4000 or PR-9000 series device. Licenses: To see the licenses of the public libraries used in the PPS app, see: https://www.prelectronics.com/applicenses/ Privacy: The app does not collect or share data. To see the privacy policy of PR electronics, see: https://www.prelectronics.com/privacy/ PR electronics designs and manufactures signal conditioning devices for process and automation industry. More info and support at http://prelectronics.com/communication.

About

SKF Shaft alignment

This utility app, when paired with specific hardware, enables precise and intuitive shaft alignment for rotating machinery. It offers a demonstration mode for experiencing the full process without the hardware and generates automatic, shareable reports.

Highlights
  • Intuitive shaft alignment with hardware
  • Flexible three-position measurement
  • Demonstration mode for full experience
  • Automatic, customizable alignment reports
  • Explanatory setup and measurement videos
  • 3D animations for guidance
  • Machine library with QR code scanner
Features
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The Horizontal shaft alignment app is designed to be used with the SKF Shaft Alignment Tool TKSA 51 or TKSA 71. Together, the hardware and the app form an alignment system that allows shaft alignments of many rotating machines to be made in an intuitive and easy way. The system uses line laser to PSD technology that enables highly accurate and reliable shaft alignments. The hardware and its app communicate wirelessly via Bluetooth®. Without the hardware the app can nonetheless be used, as it features a fully functional demonstration mode allowing the complete alignment process to be experienced before purchasing the TKSA 51 or TKSA 71 instrument.

 KEY FEATURES:
 • Very easy-to-use – The Horizontal shaft alignment app focuses on making the main alignment tasks as easy as possible and enabling accurate shaft alignments. 

• Full measurement flexibility – The Horizontal shaft alignment app uses a flexible three position measurement method that allows measurements to start at any angle and if the space is limited alignments can be performed with a total of 40° rotation only.

 • Demonstration mode – The Horizontal shaft alignment app offers a fully functional demonstration mode allowing the complete alignment process to be experienced before purchasing a supported SKF Shaft Alignment Tool.

 • Automatic alignment report – Automatically generated alignment reports give a complete overview of the alignment process and results. The reports can be customised with additional notes, a machine picture, a signature and can easily be shared via email or cloud services.

 • Explanatory videos – Easy to follow videos demonstrating how to set up and perform accurate measurements using the TKSA 51 or TKSA 71.

 • 3D Animations – 3D animations guide the user through the alignment process, allowing accurate shaft alignment to be performed in a very easy way.

 • Machine library and QR code scanner – Helps keeping track of the machines that have been measured. Machine information like distances, the machine picture, and other details are saved for each machine and can be reused the next time the same machine is measured. QR codes can be scanned to identify a machine and quickly retrieve its details. The library can also be used for easy access to all the reports generated for each machine in one place. HARDWARE – SKF Shaft Alignment Tool TKSA 51 and TKSA 71:
 The SKF TKSA 51 and TKSA 71 systems use a pair of measurement units that are combined with laser transmitter and detectors to measure and correct shaft alignment with high accuracy and reliability. The data is transferred in real time through Bluetooth® 4.0 LE to the app.

 IMPORTANT NOTE:
This app is designed to be used with the SKF Shaft Alignment Tool TKSA 51 or TKSA 71 hardware. 
The SKF TKSA 51 or TKSA 71 can be purchased separately from your local SKF Authorized Distributor. For more information and technical specifications about the SKF Shaft Alignment Tool, please visit our website.

Screenshots

PR electronics PPS4 screens
SKF Shaft alignment4 screens

Verdict

The call

The clearest difference is rating: PR electronics PPS at 5.0 against SKF Shaft alignment's 3.7. On price, review sentiment, ratings volume and update cadence 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

PR electronics PPS holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 7 and 10 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

PR electronics PPS ships an update every 2 months, SKF Shaft alignment every 3 months. Both last shipped on November 1, 2026.

Scorecard1 real difference · 9 level
PR electronics PPS versus SKF Shaft alignment: the parameters behind the verdict, then further details
ParameterPR electronics PPSSKF Shaft alignment
PriceFreeFree
Rating5.0 (7 ratings) — better3.7 (10 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings710 — better
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.616.0 — better
Further details — not scored
Size118 MB72 MB
Age rating4+4+
DeveloperPR electronics A/SSKF

Customer experience

PR electronics PPS

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

SKF Shaft alignment

All ratings10 ratings
Positive60.0%
Neutral20.0%
Negative20.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

PR electronics PPS

No in-app purchases

None

SKF Shaft alignment

No in-app purchases

Questions

Is PR electronics PPS free?
PR electronics PPS is free to download, with no in-app purchases.
Is SKF Shaft alignment free?
SKF Shaft alignment is free to download, with no in-app purchases.
Which has better reviews, PR electronics PPS or SKF Shaft alignment?
PR electronics PPS is rated higher. PR electronics PPS averages 5.0 out of 5 from 7 ratings, while SKF Shaft alignment averages 3.7 from 10 ratings.
Do PR electronics PPS or SKF Shaft alignment have ads?
Neither PR electronics PPS nor SKF Shaft alignment shows ads.
Which is updated more often, PR electronics PPS or SKF Shaft alignment?
PR electronics PPS ships an update every 2 months, and SKF Shaft alignment every 3 months. Most recently, PR electronics PPS was updated on November 1, 2026 and SKF Shaft alignment on November 1, 2026.

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