Comparison

SKF Values vs AC20

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

Head to head
About

SKF Values

Features
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The Values app is designed to be used with the SKF Shaft Alignment Tool TKSA 71. Together, the TKSA 71 and the app form a measurement system that allows readings of many rotating machines to be made in an intuitive and easy way. The app reads and visualises the readings from the measurement heads, similar to the readings given by mechanical dial gauges. The system uses line laser to PSD technology that enables highly accurate and reliable shaft measurements. The TKSA 71 and its app communicate wirelessly via Bluetooth®. KEY FEATURES: • Virtual dial indicator visualises live measurement readings and enables easy and intuitive measurements. • Highest degree for customisation – The values app is the modern representation of highly accurate dial gauges with additional convenience features. Experts get the possibility to use the alignment system for highly customised alignments with more advanced calculations, supporting various types of applications. • Ideal for training – Learning the underlying principle of shaft alignments is often accompanied by using traditional dial gauges and manual calculations. The values app facilitates the measurements and helps students to focus on the alignment calculations. • Automatic measurement report – Automatically generated measurement reports give a structured overview of the measured values. The reports can be customized with additional notes, a machine picture and a signature. The report 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 SKF Shaft Alignment Tools. • 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 71: The SKF TKSA 71 system uses a pair of measurement units that are combined 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 71 hardware. The SKF 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.

About

AC20

Features
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App Functions: • Quick and Easy Setup by QR Code • OTA Update • Multiple Devices • Multiple Users • Switch On/Off Device • Set Temperature • Switch Fan Speed • Switch Mode • Set Special Functions: Away, Sleep, Comfort, Eco • Set Scheduling • Enable Key Lock function • Set RTC Sync

Screenshots

SKF Values2 screens
AC204 screens

Verdict

The call

The clearest difference is update cadence: SKF Values at every 3 months against AC20's every 21 months. AC20's advantage is iOS requirement (12.0 vs 15.0). 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

SKF Values ships an update every 3 months, AC20 every 21 months. The most recent releases landed on October 11, 2026 and October 2, 2026 respectively.

Scorecard2 real differences · 4 level
SKF Values versus AC20: the parameters behind the verdict, then further details
ParameterSKF ValuesAC20
PriceFreeFree
Update frequencyEvery 3 months — betterEvery 21 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size57 MB45 MB
Age rating4+4+
DeveloperSKFDaikin Electronic Devices Malaysia Sdn Bhd

In-app purchases

None

SKF Values

No in-app purchases

None

AC20

No in-app purchases

Questions

Is SKF Values free?
SKF Values is free to download, with no in-app purchases.
Is AC20 free?
AC20 is free to download, with no in-app purchases.
Do SKF Values or AC20 have ads?
Neither SKF Values nor AC20 shows ads.
Which is updated more often, SKF Values or AC20?
SKF Values ships an update every 3 months, and AC20 every 21 months. Most recently, SKF Values was updated on October 11, 2026 and AC20 on October 2, 2026.

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