Engine Horsepower Calculator vs Pipefitter_Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Engine Horsepower Calculator
Estimate your vehicle's engine horsepower using different calculation methods based on weight, time, and speed. This tool provides estimations for quarter-mile runs.
- Estimate engine horsepower
- Quarter-mile run calculations
- ET Method calculation
- Trap-speed Method calculation
- RPM Torque Method calculation
- Vehicle weight input
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Engine Horsepower Calculator are used to estimate the engine horsepower of your vehicle based on the weight, the time, and the speed to finish a quarter mile run. The weight to be used should include the mass of the vehicle, the driver, the passenger, and other load. The results of these calculator are estimations only. Horsepower Calculation Method The ET Method This method uses the vehicle weight and the elapsed time (ET) to finish a quarter mile (402.3 meters). The Trap-speed Method This method uses the vehicle weight and the speed at which the vehicle finished a quarter mile (402.3 meters) . The speed to be used here should be the finishing speed at the quarter mile point. The RPM Torque Method This method uses the torque value from the vehicle manual book, The RPM should indicate the maximum torque output. Thanks for your support and do visit nitrio.com for more apps for your iOS devices.
Pipefitter_Pro
This app is a pipe calculation tool that helps determine offsets, angles, and pipe segments. It offers a visual representation of angles and a slider for quick offset dimensioning, with dynamic angle updates. Future updates aim to include 3D angle calculations.
- Calculate pipe offsets
- Determine angles
- Calculate pipe segments
- Visual angle representation
- Slider for offset dimensioning
- Dynamic angle updates
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Pipefitter Pro is a calculator for pipefitters. It calculates offsets, elbow angles and spool lengths, and draws what it works out. Choose a case from the menu, enter the pipe diameter and elbow radius on the workshop keypad, then read the available results: angles, the spool between elbows, elbow takeout, arc lengths and caliper dimensions. CASES AND VIEWS • BACK TO BACK — two elbows, with either the angle or the offset unknown. • S TYPE — offset, travel or a fixed 45° option. • TEE OFFSET — calculations that include the branch diameter. • CALCULATOR — one elbow cut out of a 90°. • 3D — two elbows in space, set using the A, B and C dimensions of a box. • SLIDER / SLIDER S TYPE / SLIDER TEE — change the angle and watch the offset change. • 3D SLIDER — set the elbow orientation in a spatial model and read the angles, the insert and the live box dimensions. The box is a visual reference, not a cut length. Depending on the case, results appear on the Angle, Dimensions and Elbow tabs; selected cases add a 3D view you can rotate and zoom. UNITS AND INPUT Lengths in millimeters, centimeters and inches. Feet-and-inches notation and decimal or fractional inches are also supported. Choose 1/16 or 1/32 precision for inch fractions. Angles are given in decimal degrees. The workshop keypad and fraction picker help you enter dimensions; add frequently used cases to favorites. PIPE AND ELBOW DIMENSIONS The DIMENSIONS tile opens the built-in NPS/DN table. It contains outside diameters and centerline radii for long-radius and short-radius elbows. Add and edit dimensions, then use them in calculations. Save a list backup to a file and restore the list from a backup. BEFORE YOU CUT Pipefitter Pro supports the preparation of workshop work. Check the dimensions against your technical documentation and your shop procedures before cutting and welding.
Screenshots
Verdict
The clearest difference is rating: Engine Horsepower Calculator at 4.2 against Pipefitter_Pro's 3.0. Engine Horsepower Calculator also leads on price ($2.99 vs $10.99) and ratings volume (6 vs 2). On update cadence, 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
Engine Horsepower Calculator costs $2.99 and Pipefitter_Pro $10.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Engine Horsepower Calculator holds the better App Store score, 4.2 against 3.0. Both are backed by a comparable volume of ratings — 6 and 2 respectively.
Engine Horsepower Calculator ships an update every 29 months, Pipefitter_Pro every 24 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.
| Parameter | Engine Horsepower Calculator | Pipefitter_Pro |
|---|---|---|
| Price | $2.99 — better | $10.99 |
| Rating | 4.2 (6 ratings) — better | 3.0 (2 ratings) |
| Positive reviews | — | 53.8% of reviews |
| Number of ratings | 6 — better | 2 |
| Update frequency | Every 29 months | Every 24 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13 — better | 15.0 |
| Further details — not scored | ||
| Size | 1 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | Nitrio | Tomasz Szymanski |
Customer experience
Engine Horsepower Calculator
Pipefitter_Pro
In-app purchases
Engine Horsepower Calculator
No in-app purchases
Pipefitter_Pro
No in-app purchases
Questions
Is Engine Horsepower Calculator free?
Is Pipefitter_Pro free?
Which has better reviews, Engine Horsepower Calculator or Pipefitter_Pro?
Do Engine Horsepower Calculator or Pipefitter_Pro have ads?
Which is updated more often, Engine Horsepower Calculator or Pipefitter_Pro?
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