Comparison

tab@lign vs Ariel Torque Guide

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

Head to head
About

tab@lign

This app provides a wireless laser shaft alignment system for tablets and smartphones when paired with specific measurement components. It offers accurate and repeatable results for standard shaft alignment and quick checks on machinery like motor-pump combinations.

Highlights
  • Wireless laser shaft alignment
  • Bluetooth® communication
  • Active Clock measurement
  • Live Move monitoring
  • Soft foot correction
  • Graphical reporting
Features
Read full description

Combined with the measurement components from PRÜFTECHNIK including a Bluetooth® module, the tab@lign app composes a wireless laser shaft alignment system for tablets and smart phones. The app is dedicated to standard shaft alignment including quick alignment checks on machines such as a motor-pump combination. Equipped with the PRÜFTECHNIK patented single-laser technology, and offering a high system dependability, tab@lign delivers accurate and repeatable measurement results. Key features include: • 3 steps to alignment Enter dimensions, rotate shafts and display measurement result. • Bluetooth® communication The PRÜFTECHNIK measurement equipment provides high-accuracy measurement data to the Apple device through the Bluetooth® module for a convenient data transmission. • Active Clock measurement During shaft rotation, measurements are automatically taken at 3 sensor positions. A shaft rotation of only as little as 70° is required. The activated electronic inclinometer eliminates possible user error for intelligent and precise alignment. • Result and Live Move Both horizontal and vertical coupling and foot results are automatically calculated and displayed. The graphics show the machine position and the arrows the necessary feet corrections. During Live Move, tab@lign monitors the horizontal changes live on the screen, continuously updating the adjustments. • Soft foot Measure, correct and save soft foot results. • Reporting Measurement results can be immediately shared via email in a clear single-page graphical report to facilitate and shorten the alignment cycle time. In Demo mode, the app can simulate measurement scenarios using the mobile device’s position sensor. PRÜFTECHNIK participates in the “Made For iPhone” (MFi) program and the measurement components together with the Bluetooth® module are certified by Apple Inc. IMPORTANT NOTE: This app requires the measurement components from PRÜFTECHNIK. They can be purchased separately at: http://www.pruftechnik.com/tabalign For more information and technical specifications, please visit: www.pruftechnik.com/tabalign

About

Ariel Torque Guide

This app provides quick access to fastener torques and clearances for Ariel compressors, serving as an electronic companion to engineering reference documents. It allows users to find specific values based on compressor model, fastener location, and part numbers, even without an internet connection.

Highlights
  • Determine fastener torques and clearances
  • Access data offline
  • Filter by compressor model, location, and type
  • Find clearance values by part number
  • Access customer support information
  • Link to technical documentation
Features
Read full description

Acting as an electronic companion to Ariel’s Engineering Reference Torque documents, the Ariel Torque Guide allows you to quickly and conveniently determine the proper fastener torques and clearances for your Ariel compressor. Torque and clearance values within the app can be accessed without cellular service or Wi-Fi, giving you access to comprehensive Ariel information and support anytime, anywhere. The Ariel Torque Guide allows you to: • Find torque values and clearance values based on your compressor model, fastener location, and fastener type for the compressor you are working on • Find clearance values for piston rings, rider rings, and wearband based on part numbers • Access torque values while working in remote locations • Easily access Ariel Customer Support information • Conveniently link to technical support documentation on the Ariel website • Automatically update when connected to Wi-Fi or cellular data

Screenshots

tab@lign4 screens
Ariel Torque Guide4 screens

Verdict

The call

The clearest difference is update cadence: Ariel Torque Guide at every 2 months against tab@lign's every 10 months. Ariel Torque Guide also leads on review sentiment (100% vs 83%) and ratings volume (8 vs 2). tab@lign's advantage is rating (5.0 vs 4.8) and iOS requirement (7.0 vs 15.1). On price, ads, in-app purchases and monetization model 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

tab@lign holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 2 and 8 respectively. Written reviews complicate that: 83% of tab@lign's written reviews are positive against 100% of Ariel Torque Guide's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

tab@lign ships an update every 10 months, Ariel Torque Guide every 2 months. The most recent releases landed on October 6, 2026 and October 1, 2026 respectively.

Scorecard5 real differences · 5 level
tab@lign versus Ariel Torque Guide: the parameters behind the verdict, then further details
Parametertab@lignAriel Torque Guide
PriceFreeFree
Rating5.0 (2 ratings) — better4.8 (8 ratings)
Positive reviews83.3% of reviews100.0% of reviews — better
Number of ratings28 — better
Update frequencyEvery 10 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS7.0 — better15.1
Further details — not scored
Size41 MB52 MB
Age rating4+4+
DeveloperPRÜFTECHNIK AGAriel Corporation

Customer experience

tab@lign

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

Ariel Torque Guide

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

tab@lign

No in-app purchases

None

Ariel Torque Guide

No in-app purchases

Questions

Is tab@lign free?
tab@lign is free to download, with no in-app purchases.
Is Ariel Torque Guide free?
Ariel Torque Guide is free to download, with no in-app purchases.
Which has better reviews, tab@lign or Ariel Torque Guide?
tab@lign is rated higher. tab@lign averages 5.0 out of 5 from 2 ratings, while Ariel Torque Guide averages 4.8 from 8 ratings.
Do tab@lign or Ariel Torque Guide have ads?
Neither tab@lign nor Ariel Torque Guide shows ads.
Which is updated more often, tab@lign or Ariel Torque Guide?
tab@lign ships an update every 10 months, and Ariel Torque Guide every 2 months. Most recently, tab@lign was updated on October 6, 2026 and Ariel Torque Guide on October 1, 2026.

Other comparisons