Comparison

Vertical Shaft Alignment vs PDB ePTW+

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

Head to head
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.

About

PDB ePTW+

Read full description

ePTW+ incorporates planning, risk assessment, hazard conflict warning as well as isolation management. This work management tool is built around workflows that enforce approvals to be obtained at the right time by the right people. ePTW+ encompasses planning, assessing risks, controlling hazards, identifying conflicts through to isolations, restorations and lock management whilst significantly reducing man-hours and costs, ensuring compliance and increasing on-site safety.

Screenshots

Vertical Shaft Alignment4 screens
PDB ePTW+4 screens

Verdict

The call

Vertical Shaft Alignment and PDB ePTW+ are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Vertical Shaft Alignment ships an update every 6 months, PDB ePTW+ every 4 months. The most recent releases landed on October 7, 2026 and October 4, 2026 respectively.

ScorecardNo meaningful differences
Vertical Shaft Alignment versus PDB ePTW+: the parameters behind the verdict, then further details
ParameterVertical Shaft AlignmentPDB ePTW+
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 6 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size94 MB25 MB
Age rating4+4+
DeveloperACOEM GroupPetroliam Nasional Berhad (PETRONAS)

In-app purchases

None

Vertical Shaft Alignment

No in-app purchases

None

PDB ePTW+

No in-app purchases

Questions

Is Vertical Shaft Alignment free?
Vertical Shaft Alignment is free to download, with no in-app purchases.
Is PDB ePTW+ free?
PDB ePTW+ is free to download, with no in-app purchases.
Do Vertical Shaft Alignment or PDB ePTW+ have ads?
Neither Vertical Shaft Alignment nor PDB ePTW+ shows ads.
Which is updated more often, Vertical Shaft Alignment or PDB ePTW+?
Vertical Shaft Alignment ships an update every 6 months, and PDB ePTW+ every 4 months. Most recently, Vertical Shaft Alignment was updated on October 7, 2026 and PDB ePTW+ on October 4, 2026.

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