Comparison

Ariel Quick Size vs SKF Spacer shaft alignment

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

Head to head
About

Ariel Quick Size

This utility app helps users estimate compressor configurations based on input pressures and flow requirements. It calculates needed horsepower or flow, suggests frame and cylinder configurations, and estimates stages, bore sizes, and discharge temperatures. Results can be emailed for further review.

Highlights
  • Horsepower or gas flow estimate
  • Compressor frame and cylinder configuration
  • Estimate required stages and bore sizes
  • Input gas specific gravity
  • English or Metric units
  • Email results
Features
Read full description

Ariel Compression sized quickly! Download Ariel Quick Size to unleash logic that brings your compression need into focus. Ariel Quick Size calculator functions as an electronic horsepower wheel and date finder with enhanced features and productivity. Find which Ariel frame and cylinders will get you where you need to be. Simply input your suction and discharge pressures and flow requirements into Ariel Quick Size to get an estimate on needed horsepower or flow (based on user preference.) Next, estimate an Ariel compressor configuration that fits your needs. Ariel Quick Size estimates the required stages, bore sizes, discharge temperatures, and rod loads needed for your specific application. Ariel Quick Size captures this information – allowing you to e-mail your results to Ariel or yourself for further review. Results and Features: · At-a-glance Basic Frame Data (replacing the Ariel Data Cards) · Target Horsepower or Gas Flow Estimate · Compressor Frame and Cylinder Configuration · Input Gas Specific Gravity · Work in either English or Metric units · E-mail the preliminary selection to yourself, Ariel, or others from Ariel Quick Size

About

SKF Spacer shaft alignment

This utility app, used with specific hardware, simplifies the process of aligning spacer shafts in rotating machinery. It offers guided measurements, automatic report generation, and helpful visual aids for accurate results. A demonstration mode allows users to experience the full alignment process before acquiring the necessary equipment.

Highlights
  • Intuitive spacer shaft alignment
  • Quick three-point measurements
  • Demonstration mode
  • Automatic alignment reports
  • Explanatory videos
  • 3D animations
  • Machine library with QR scanner
Features
Read full description

The Spacer shaft alignment app is designed to be used with the SKF Shaft Alignment Tool TKSA 71. Together, the TKSA 71 and the app form an alignment system that allows spacer 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 TKSA 71 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 of a spacer shaft to be experienced before purchasing the TKSA 71. KEY FEATURES: • Very easy-to-use – The Spacer shaft alignment app focuses on the particularities of spacer shafts and makes the alignment tasks as easy as possible, supporting accurate spacer shaft alignments.  • Quick Three Point Alignment Measurements - Follow the guidance of the app and perform a full 9-12-3 measurement or perform a limited rotation measurement with as little as 40 degrees of total rotation. • Demonstration mode – The Spacer shaft alignment app offers a fully functional demonstration mode allowing the complete alignment process to be experienced before purchasing the TKSA 71. • 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, a machine picture and a signature. The report can easily be shared via email or cloud services. • Easy to follow explanatory videos – Short explanatory videos are available in the help section of the app and show in easy steps how to set up and perform accurate alignment measurements with the TKSA 71. • 3D Animations – 3D animations intuitively 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 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.

Screenshots

Ariel Quick Size4 screens
SKF Spacer shaft alignment4 screens

Verdict

The call

The clearest difference is rating: Ariel Quick Size at 5.0 against SKF Spacer shaft alignment's 4.0. Ariel Quick Size also leads on iOS requirement (9.0 vs 15.0). On price, ratings volume, update cadence and ads 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

Ariel Quick Size holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

Ariel Quick Size ships an update every 7 months, SKF Spacer shaft alignment every 5 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

Scorecard2 real differences · 8 level
Ariel Quick Size versus SKF Spacer shaft alignment: the parameters behind the verdict, then further details
ParameterAriel Quick SizeSKF Spacer shaft alignment
PriceFreeFree
Rating5.0 (2 ratings) — better4.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings2 — better1
Update frequencyEvery 7 monthsEvery 5 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better15.0
Further details — not scored
Size31 MB69 MB
Age rating4+4+
DeveloperAriel CorporationSKF

Customer experience

Ariel Quick Size

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

SKF Spacer shaft alignment

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

In-app purchases

None

Ariel Quick Size

No in-app purchases

None

SKF Spacer shaft alignment

No in-app purchases

Questions

Is Ariel Quick Size free?
Ariel Quick Size is free to download, with no in-app purchases.
Is SKF Spacer shaft alignment free?
SKF Spacer shaft alignment is free to download, with no in-app purchases.
Which has better reviews, Ariel Quick Size or SKF Spacer shaft alignment?
Ariel Quick Size is rated higher. Ariel Quick Size averages 5.0 out of 5 from 2 ratings, while SKF Spacer shaft alignment averages 4.0 from 1 ratings.
Do Ariel Quick Size or SKF Spacer shaft alignment have ads?
Neither Ariel Quick Size nor SKF Spacer shaft alignment shows ads.
Which is updated more often, Ariel Quick Size or SKF Spacer shaft alignment?
Ariel Quick Size ships an update every 7 months, and SKF Spacer shaft alignment every 5 months. Most recently, Ariel Quick Size was updated on November 1, 2026 and SKF Spacer shaft alignment on November 2, 2026.

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