Comparison

Shaft Alignment Tool TKSA 11 vs STS

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

Head to head
About

Shaft Alignment Tool TKSA 11

This tool simplifies shaft alignment for rotating machinery using wireless communication with dedicated hardware. It offers a demonstration mode to experience the full process without the physical device, generating automatic reports and providing visual guidance.

Highlights
  • Wireless Bluetooth communication
  • Demonstration mode
  • Automatic alignment reports
  • Explanatory videos
  • 3D animations
  • Combined 2D/3D alignment view
Features
Read full description

The SKF TKSA 11 app is designed to be used with the SKF Shaft Alignment Tool TKSA 11. Together, the TKSA 11 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 a new innovative technology that enables highly accurate and reliable shaft alignments, whilst being affordable for almost every budget. The TKSA 11 and its app communicate wirelessly via Bluetooth®. Without the hardware the app can nonetheless be used, as it features a fully functional demonstration allowing the complete alignment process to be experienced without the need to purchase the TKSA 11. KEY FEATURES: • Very easy-to-use – The TKSA 11 app focusses on making the main alignment tasks as easy as possible and enabling accurate shaft alignments. • Demonstration mode – The TKSA 11 app offers a fully functional demonstration mode allowing the complete alignment process to be experienced without the need to purchase the TKSA 11. • Automatic alignment report – Automatically generated alignment reports give a complete overview of the alignment process and results. The Reports can be customized with additional notes, machine pictures and more and can easily be shared via email or cloud services. • Easy to follow explanatory videos – Comprehensive videos show how to set up and perform accurate measurements with the TKSA 11. • 3D Animations – 3D animations guide the user through the alignment process, allowing accurate shaft alignment to be performed in a very easy way. • Combined 2D/3D alignment view – The combined view of two planes inside a three dimensional picture help visualize the alignment status, making it very easy to understand the situation and prepare corrective measures. HARDWARE – SKF Shaft Alignment Tool TKSA 11: The SKF TKSA 11 uses two inductive proximity sensors and a reference bar 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. DEMONSTRATION MODE: The TKSA 11 is equipped with a fully functional demonstration mode. The measurement values are replaced with simulated data and allow the app to be used when no hardware is available. With the demonstration mode, the complete shaft alignment process can be experienced without the need to purchase the SKF TKSA 11. IMPORTANT NOTE: This app is designed to be used with the SKF Shaft Alignment Tool TKSA 11 hardware. The SKF TKSA 11 can be purchased separately from your local SKF Authorized Distributor. For more information and technical specifications about the SKF Shaft Alignment Tool TKSA 11, just visit our website.

About

STS

This utility helps users select the appropriate Siemens soft starter for their specific needs. It simulates applications based on various parameters and provides detailed reports, with direct links to product data.

Highlights
  • Soft starter application simulation
  • Input data for environment, motor, and load
  • Starting parameter configuration
  • Suggested soft starter selection
  • Simulation and component reports
  • Direct access to Siemens Industry Mall data
Read full description

This application allows users to find the right Siemens soft starter for his specific application. Features: * Simulate a soft starter application based on your input data: ** Environment & supply ** Motor ** Load ** Starting parameters for the application ** Additional functions ** Starting profile * Select a suggested soft starter * Generate a report for a selected soft starter with the summary of the simulation and optional feeder main components * Direct access to selected soft starter data in the Siemens Industry Mall * Metrics: SI and Imperial * Languages: English, German, Chinese, French, Spanish, Portuguese, Turkish, Czech, Italian and Russian

Screenshots

Shaft Alignment Tool TKSA 114 screens
STS4 screens

Verdict

The call

The clearest difference is rating: STS at 5.0 against Shaft Alignment Tool TKSA 11's 4.3. STS also leads on iOS requirement (12.2 vs 16.0). Shaft Alignment Tool TKSA 11's advantage is ratings volume (4 vs 1). On price, update cadence, ads and in-app purchases 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

STS holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

UpkeepUpdate frequency

Shaft Alignment Tool TKSA 11 ships an update every 4 months, STS every 5 months. The most recent releases landed on October 21, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
Shaft Alignment Tool TKSA 11 versus STS: the parameters behind the verdict, then further details
ParameterShaft Alignment Tool TKSA 11STS
PriceFreeFree
Rating4.3 (4 ratings)5.0 (1 ratings) — better
Positive reviews50.0% of reviews—
Number of ratings4 — better1
Update frequencyEvery 4 months — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.012.2 — better
Further details — not scored
Size77 MB67 MB
Age rating4+4+
DeveloperSKFSiemens AG

Customer experience

Shaft Alignment Tool TKSA 11

All ratings4 ratings
Positive75.0%
Neutral25.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

STS

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Shaft Alignment Tool TKSA 11

No in-app purchases

None

STS

No in-app purchases

Questions

Is Shaft Alignment Tool TKSA 11 free?
Shaft Alignment Tool TKSA 11 is free to download, with no in-app purchases.
Is STS free?
STS is free to download, with no in-app purchases.
Which has better reviews, Shaft Alignment Tool TKSA 11 or STS?
STS is rated higher. Shaft Alignment Tool TKSA 11 averages 4.3 out of 5 from 4 ratings, while STS averages 5.0 from 1 ratings.
Do Shaft Alignment Tool TKSA 11 or STS have ads?
Neither Shaft Alignment Tool TKSA 11 nor STS shows ads.
Which is updated more often, Shaft Alignment Tool TKSA 11 or STS?
Shaft Alignment Tool TKSA 11 ships an update every 4 months, and STS every 5 months. Most recently, Shaft Alignment Tool TKSA 11 was updated on October 21, 2026 and STS on October 25, 2026.

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