Comparison

EXFO OPM vs Horizontal 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

Horizontal Shaft Alignment

This app assists with horizontal shaft alignment for machinery like motors and pumps. It guides users through the measurement and alignment process using Bluetooth-connected sensors, offering features like Feetlock for challenging situations and instant PDF reporting.

Highlights
  • Bluetooth sensor connectivity
  • Guided measurement and alignment process
  • Feetlock function for base-bound machines
  • Instant PDF report generation
  • ACOEM Cloud integration for reporting and sharing
  • VertiZontal adjustment without re-measuring
Features
Read full description

This is a companion app for performing horizontal shaft alignment, using the RT 300/AT 200/AT 100, 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. This offers an extensive shaft alignment package, including the Feetlock function that is useful in base/bolt-bound machine situations. The PDF Report function provides a fast on-site reporting capability by converting saved measurement reports into PDF files. Thanks to the ACOEM cloud instant reporting and instant sharing is easy. ---- 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 - VertiZontal™: adjust the machine both vertically and horizontally without re-measuring - Create an instant PDF-report - Connect to the ACOEM Cloud (optional) 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
Horizontal Shaft Alignment4 screens

Verdict

The call

The clearest difference is rating: Horizontal Shaft Alignment at 5.0 against EXFO OPM's 1.0. EXFO OPM's advantage is ratings volume (7 vs 2) and iOS requirement (10.0 vs 15.0). 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

Horizontal Shaft Alignment holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 7 and 2 respectively.

UpkeepUpdate frequency

EXFO OPM ships an update every 7 months, Horizontal Shaft Alignment every 4 months. The most recent releases landed on October 20, 2026 and October 21, 2026 respectively.

Scorecard3 real differences · 7 level
EXFO OPM versus Horizontal Shaft Alignment: the parameters behind the verdict, then further details
ParameterEXFO OPMHorizontal Shaft Alignment
PriceFreeFree
Rating1.0 (7 ratings)5.0 (2 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings7 — better2
Update frequencyEvery 7 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better15.0
Further details — not scored
Size62 MB123 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%

Horizontal Shaft Alignment

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

EXFO OPM

No in-app purchases

None

Horizontal Shaft Alignment

No in-app purchases

Questions

Is EXFO OPM free?
EXFO OPM is free to download, with no in-app purchases.
Is Horizontal Shaft Alignment free?
Horizontal Shaft Alignment is free to download, with no in-app purchases.
Which has better reviews, EXFO OPM or Horizontal Shaft Alignment?
Horizontal Shaft Alignment is rated higher. EXFO OPM averages 1.0 out of 5 from 7 ratings, while Horizontal Shaft Alignment averages 5.0 from 2 ratings.
Do EXFO OPM or Horizontal Shaft Alignment have ads?
Neither EXFO OPM nor Horizontal Shaft Alignment shows ads.
Which is updated more often, EXFO OPM or Horizontal Shaft Alignment?
EXFO OPM ships an update every 7 months, and Horizontal Shaft Alignment every 4 months. Most recently, EXFO OPM was updated on October 20, 2026 and Horizontal Shaft Alignment on October 21, 2026.

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