Comparison

EXFO OPM vs Vertical Shaft Alignment

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

Head to head
About

EXFO OPM

This application connects to specific EXFO optical power meters and checkers via Bluetooth to display live measurements. It allows users to manage test configurations, store and edit measurement data, add GPS coordinates, and generate shareable PDF reports.

Highlights
  • Bluetooth connectivity to EXFO devices
  • Live measurement display
  • Measurement storage and management
  • Test configuration management
  • PDF test report generation
  • GPS coordinate tagging
  • JSON export for MPC-100
Features
Read full description

The EXFO OPM [Optical Power Meter] application can connect over Bluetooth™ to both EXFO’s PON Power meters (PPM-350D), and power checkers (MPC-100 series). When connected, the app can display live measurements and store measurements, along with the following advanced/additional features: - Manage test configurations (import, delete, sync with instrument) - Select a test configuration to use on the instrument - View test configuration details - Manage measurements (edit name and identification information, export, delete) - Add GPS coordinates to a measurement - View saved measurement details - Generate a PDF test report for a measurement - Share a PDF test report. Specifically for the MPC-100: - Supports Duplex measurements storing values on the transmit (Tx) and Receive (Rx) side on the same window and in the same report. - Export of the results in .JSON format

About

Vertical Shaft Alignment

This app guides users through the vertical shaft alignment process for motor and pump applications using specific Bluetooth-connected sensors. It facilitates measurement and alignment, and allows for instant PDF report generation on-site.

Highlights
  • Bluetooth sensor connectivity
  • Guided measurement and alignment process
  • Icon-based adaptive user interface
  • Instant PDF report generation
  • Works with RT-300/AT-200 sensors
Features
Read full description

This is a companion app for performing vertical shaft alignment, using the RT-300/AT-200, on typical applications such as a motor and a pump. The app guides the user throughout the complete measurement and alignment process when using the Bluetooth® connected ACOEM sensors. The PDF Report function provides a fast on-site reporting capability by converting saved measurement reports into PDF files. ---- Note: This app works only with the ACOEM RT-300 and AT-200 ---- Key Features: - Connected using Bluetooth® - GuideU: Our patented icon-based and color-coded adaptive user interface - Create an instant PDF-report Visit the website www.acoem.com for more information on alignment in general, the ACOEM tools and support of the app.

Screenshots

EXFO OPM4 screens
Vertical Shaft Alignment4 screens

Verdict

The call

The clearest difference is rating: Vertical Shaft Alignment at 5.0 against EXFO OPM's 1.0. EXFO OPM's advantage is ratings volume (6 vs 1) and iOS requirement (10.0 vs 13.0). 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

Vertical Shaft Alignment holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: EXFO OPM has 6 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

EXFO OPM ships an update every 7 months, Vertical Shaft Alignment every 6 months. The most recent releases landed on September 25, 2026 and October 14, 2026 respectively.

Scorecard3 real differences · 7 level
EXFO OPM versus Vertical Shaft Alignment: the parameters behind the verdict, then further details
ParameterEXFO OPMVertical Shaft Alignment
PriceFreeFree
Rating1.0 (6 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings6 — better1
Update frequencyEvery 7 monthsEvery 6 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better13.0
Further details — not scored
Size62 MB94 MB
Age rating4+4+
DeveloperEXFO Inc.ACOEM Group

Customer experience

EXFO OPM

All ratings6 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews7 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Vertical Shaft Alignment

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

In-app purchases

None

EXFO OPM

No in-app purchases

None

Vertical Shaft Alignment

No in-app purchases

Questions

Is EXFO OPM free?
EXFO OPM is free to download, with no in-app purchases.
Is Vertical Shaft Alignment free?
Vertical Shaft Alignment is free to download, with no in-app purchases.
Which has better reviews, EXFO OPM or Vertical Shaft Alignment?
Vertical Shaft Alignment is rated higher. EXFO OPM averages 1.0 out of 5 from 6 ratings, while Vertical Shaft Alignment averages 5.0 from 1 ratings.
Do EXFO OPM or Vertical Shaft Alignment have ads?
Neither EXFO OPM nor Vertical Shaft Alignment shows ads.
Which is updated more often, EXFO OPM or Vertical Shaft Alignment?
EXFO OPM ships an update every 7 months, and Vertical Shaft Alignment every 6 months. Most recently, EXFO OPM was updated on September 25, 2026 and Vertical Shaft Alignment on October 14, 2026.

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