Piping and Flange Handbook vs Structural Engineering Calc.
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Piping and Flange Handbook
Access comprehensive piping and flange data on your mobile device. Quickly find dimensions, weights, and stud requirements for various pipe components, fittings, and flanges. Ideal for field professionals and designers needing instant access to critical information.
- CAD-generated component drawings
- Metric & Imperial units
- Browse and search piping by size/schedule
- Flange type browsing
- Calculate flange stud requirements
- Dimensional and weight data
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THE MOST DETAILED AND USER FRIENDLY IPHONE PIPE FITTER APP JUST KEEPS GETTING BETTER!! Ever been in the field, shop, meeting, or away from the office and needed some quick data on pipes, flanges, and fittings? Wouldn't it be nice to have all this information in your pocket? The time has finally come!! The ORIGINAL and #1 selling Pipe Fitters Handbook is designed for Pipe Fitters, Piping Designers, Engineers, Students, or anyone who needs data on pipe and piping components quickly at their finger tips. Every component has been drawn in CAD and dimensions checked for accuracy by a professional engineer. The BEST and MOST DETAILED mobile Piping Component Reference Guide keeps getting better and better with new components frequently added and some surprises coming soon! COMPONENTS: Fittings: Long & Short-Radius Elbows, Straight & Reducing Tees, Caps, Concentric & Eccentric Reducers Flanges: Welding Neck, Socket Welding, Slip-On Welding, Threaded & Blind (150 to 2500 ANSI for RF and RTJ flange faces) Pipe Schedules: STD, XS, XXS & all Schedules (stainless steel and carbon steel materials) Socketwelded and Threaded Components The following sections and components will be delivered soon: - Branch Connections - Valves - Spectacle and Paddle Blinds FEATURES: ** INTUITIVE and EASY to use interface ** ALL drawings dimensionally correct and generated by CAD software ** METRIC & IMPERIAL units ** BROWSE and SEARCH piping by size and schedule. Data includes dimensional information and weight ** BROWSE all common flange types such as RFWN, Socket Welded, Slip-on, Threaded, Lap joint ** QUICKLY determine the number and size of studs required for all flange types and sizes ** Great companion to our Pipe and Flange Calculator App Feedback: itouchitonce@me.com
Structural Engineering Calc.
This app provides 59 essential structural engineering formulas for columns, beams, base plates, composite beams, and connections. It offers instant demand/capacity checks, a built-in AISC section database, and material references, supporting both USCS and SI units for on-site or office use.
- 59 structural formulas
- Instant demand/capacity checks
- Built-in AISC section database
- Material and code references
- USCS & SI unit support
- Pass/Fail visual indicators
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Structural Engineering Calculator delivers 59 AISC and ACI structural formulas with instant results, demand/capacity checks, a built-in AISC section database, and material references — all in one app. Whether you’re on site, in the office, or reviewing drawings, every calculation you need is in your pocket. 59 STRUCTURAL FORMULAS COLUMNS Critical Ratio (Cc), Effective Length Factor (K), Slenderness Ratio (KL/r), Allowable Compressive Stress (Sr less than Cc), Allowable Compressive Stress (Sr greater than Cc), Safety Factor, Maximum Axial Load. BEAMS Shear Capacity of Flexural Members, Allowable Bending Stress (Compact and Noncompact), Moment Gradient Factor (Cb), Allowable Flange Bending Stress, Plastic Moment (Mp), Lateral Unbraced Lengths (Lp and Lr), Limiting Buckling Moment (Mr), Nominal Moment (Mn), Critical Elastic Moment (Mcr), Allowable Shear Stress, Beam Deflection for UDL and Point Load. BASE PLATES Base Plate Area, Plate Thickness, Bearing Pressure, Flange and Web Thickness, Plate Dimensions N and B. COMPOSITE BEAMS Horizontal Shear for Concrete and Steel, Number of Shear Connectors, Transformed Section Properties, Modular Ratio, Elastic Neutral Axis. CONNECTIONS Allowable Shear with Tension Field Action, Allowable Bearing Stress for Rollers and Rockers, Axial Stress for Concentrated Loads, Allowable Bearing Stress on Fasteners, Number of Shear Connectors, Total Horizontal Shear. AISC CODE REFERENCES Every formula links directly to AISC and ACI clauses — AISC 360-16, AISC ASD 9th Edition, ACI 318-19, and AISC Design Guide 3. PASS / FAIL CHECK Instant visual adequacy check with demand/capacity ratio — green for PASS, red for FAIL. AISC SECTION PICKER Browse W-shapes (AISC 15th Edition) and auto-fill section properties instantly. REFERENCE TAB Built-in library with W-sections (W4–W44), ASTM materials (A36, A992, A572, A500, A325, A490, F1554), weld electrodes, concrete grades, and codes. USCS & SI UNITS Switch anytime between USCS (in, kip, ksi) and SI (mm, MPa) with automatic conversion. All section and material data included. Supports both USCS and SI units. Compatible with iPhone and iPad. One-time purchase — no subscriptions. References: AISC Steel Construction Manual 15th Edition, AISC 360-16, AISC ASD 9th Edition, ACI 318-19, AISC Design Guide 3.
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Verdict
The clearest difference is rating: Structural Engineering Calc. at 4.5 against Piping and Flange Handbook's 3.5. Structural Engineering Calc. also leads on price ($5.99 vs $8.99) and ratings volume (20 vs 2). Piping and Flange Handbook's advantage is review sentiment (39% vs 0%) and update cadence (monthly vs every 10 months). On ads, in-app purchases, monetization model 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
Piping and Flange Handbook costs $8.99 and Structural Engineering Calc. $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Structural Engineering Calc. holds the better App Store score, 4.5 against 3.5. That said, the two scores are not equally well evidenced: Structural Engineering Calc. has 20 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 39% of Piping and Flange Handbook's written reviews are positive against 0% of Structural Engineering Calc.'s, so the app with the better star average is not the one people write more warmly about.
Piping and Flange Handbook ships an update monthly, Structural Engineering Calc. every 10 months. The most recent releases landed on September 27, 2026 and September 18, 2026 respectively.
| Parameter | Piping and Flange Handbook | Structural Engineering Calc. |
|---|---|---|
| Price | $8.99 | $5.99 — better |
| Rating | 3.5 (2 ratings) | 4.5 (20 ratings) — better |
| Positive reviews | 39.4% of reviews — better | 0.0% of reviews |
| Number of ratings | 2 | 20 — better |
| Update frequency | Monthly — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 8.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 6 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | iTouch It Once Software Corp. | V PUGAZHENTHI |
Customer experience
Piping and Flange Handbook
Structural Engineering Calc.
In-app purchases
Piping and Flange Handbook
No in-app purchases
Structural Engineering Calc.
No in-app purchases
Questions
Is Piping and Flange Handbook free?
Is Structural Engineering Calc. free?
Which has better reviews, Piping and Flange Handbook or Structural Engineering Calc.?
Do Piping and Flange Handbook or Structural Engineering Calc. have ads?
Which is updated more often, Piping and Flange Handbook or Structural Engineering Calc.?
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