Comparison

Compound Offset Calculator vs Empower, by ISN

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

Head to head
About

Compound Offset Calculator

This app calculates complex pipe offsets, offering 36 isometric combinations. It provides accurate angles, true cut lengths, and dimensions for custom fittings, supporting both metric and imperial units. Designed for pipefitters to improve workplace efficiency.

Highlights
  • Calculates complex pipe offsets
  • 36 isometric combinations
  • Accurate offset angles
  • True cut length of pipe
  • Custom fitting dimensions
  • Metric and imperial charts
Features
Read full description

The Compound Pipe Calculator is designed to calculate one of the more challenging offsets. A rolling offset that transitions into another offset/rolling offset. Total of 36 combinations of compound pipe offsets available in isometric view to match your drawing. Generates in seconds: -Accurate offset angles for angle1, the compound angle, angle3 -True cut length of pipe with root gap -Dimensions to cut Custom Fitting from a 90 - Input Feet/Inches/Fraction - Input Centimeters/Millimeters - Input Root Gap - Calculate "long radius", "short radius" and "3 Radius" fittings and custom fittings - Determines Cut Length of Pipe to build spool piece - Generates Values to cut any angle fitting out of a 90 - Generates Pipe Length and True Cut Length of Pipe Included are metric and imperial pipe charts. Thank you all for your support and your feedback is absolutely awesome. And always appreciated. I tweak these apps to be as simple and intuitive as possible. Everyone can message me at easypipefitter@gmail.com with any question regarding all the pipe tools available if you would like assistance in seeing how powerful these tools can be. And I will answer you very quickly, in most cases within a few minutes of you sending a message. Video UserGuides on Youtube http://www.youtube.com/watch?v=44MbP0nRXnE Like us on Facebook http://www.facebook.com/PipefitterCalculator *** Immediate Fitter Support Beyond what's in the app*** *** New to fitting Pipe use the in-app feedback screen*** Also included is prompt customer service. You have a question, a comment, an issue or even a suggestion I am readily available. This is app is designed as a tool to improve your value in the workplace. Feedback is important.. if you see something occur please contact me with the feedback screen and I will contact you. I continually update when needed so everyone can use this app. Thank you.

About

Empower, by ISN

Access work-readiness training, digital IDs, and jobsite requirements. Manage licenses and certifications, and stay informed with AI-generated toolbox talks. Connect with hiring clients to view compliance status and bulletin board messages.

Highlights
  • Digital ISN-ID card access
  • View jobsite requirements and compliance
  • Complete trainings on-the-go
  • AI-generated Toolbox Talks™
  • Manage licenses and certifications
  • Access bulletin board messages
Features
Read full description

Empower, ISN's mobile app for workers, enables access to work-readiness trainings, documents, and other important information to help improve jobsite readiness. With Empower, workers can: - Easily access your digital ISN-ID card - Connect with ISN Hiring Clients to view jobsite requirements and compliance status - Complete trainings on-the-go - Create AI-generated Toolbox Talks™ to keep your crew informed - Access bulletin board messages from your Hiring Clients - Use the digital wallet to manage licenses and certifications to prove your readiness to work & more! This app uses background location to help workers find and check-in to Client jobsites faster. Continued use of background location may decrease battery life. Note: Some functionality is limited to ISNetworld® (ISN) contractor subscribers.

Screenshots

Compound Offset Calculator4 screens
Empower, by ISN4 screens

Verdict

The call

The clearest difference is price: Empower, by ISN at Free against Compound Offset Calculator's $1.99. Empower, by ISN also leads on rating (4.8 vs 2.7) and review sentiment (68% vs 33%). Compound Offset Calculator's advantage is update cadence (every 3 weeks vs every 2 months) and chart position (#193 vs unranked). On ads, in-app purchases and device support 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

Empower, by ISN is free to download; Compound Offset Calculator costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Empower, by ISN holds the better App Store score, 4.8 against 2.7. That said, the two scores are not equally well evidenced: Empower, by ISN has 31K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 33% of Compound Offset Calculator's written reviews are positive against 68% of Empower, by ISN's.

UpkeepUpdate frequency

Compound Offset Calculator ships an update every 3 weeks, Empower, by ISN every 2 months. The most recent releases landed on October 26, 2026 and November 3, 2026 respectively.

Scorecard8 real differences · 3 level
Compound Offset Calculator versus Empower, by ISN: the parameters behind the verdict, then further details
ParameterCompound Offset CalculatorEmpower, by ISN
Price$1.99Free — better
Rating2.7 (3 ratings)4.8 (31K ratings) — better
Positive reviews33.3% of reviews68.0% of reviews — better
Number of ratings331K — better
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidAd-supported — better
Best chart rank#193 — better—
DevicesiPhone, iPod — betteriPhone
Requires iOS10.0 — better17.0
Further details — not scored
Size20 MB53 MB
Age rating17+4+
DeveloperLMF.ServicesISNetworld

Customer experience

Compound Offset Calculator

All ratings3 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

Empower, by ISN

All ratings27,754 ratings
Positive95.9%
Neutral2.5%
Negative1.6%
Written reviews100 reviews
Positive68.0%
Neutral1.0%
Negative31.0%

Bugs and requests

Compound Offset Calculator

Not enough reviews yet to summarise bugs or requests.

Empower, by ISN

Reported bugs

2 issues
  • Partial error messages during video playback
  • App progress wiped out after restart

Requested features

2 requests
  • Option to store external documents
  • Email verification option

In-app purchases

None

Compound Offset Calculator

No in-app purchases

None

Empower, by ISN

No in-app purchases

Questions

Is Compound Offset Calculator free?
Compound Offset Calculator costs $1.99, with no in-app purchases.
Is Empower, by ISN free?
Empower, by ISN is free to download, with no in-app purchases.
Which has better reviews, Compound Offset Calculator or Empower, by ISN?
Empower, by ISN is rated higher. Compound Offset Calculator averages 2.7 out of 5 from 3 ratings, while Empower, by ISN averages 4.8 from 31K ratings.
Do Compound Offset Calculator or Empower, by ISN have ads?
Neither Compound Offset Calculator nor Empower, by ISN shows ads.
Which is updated more often, Compound Offset Calculator or Empower, by ISN?
Compound Offset Calculator ships an update every 3 weeks, and Empower, by ISN every 2 months. Most recently, Compound Offset Calculator was updated on October 26, 2026 and Empower, by ISN on November 3, 2026.

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