PipeSizer vs PipeAtlas
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PipeSizer
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PipeSizer helps piping and process engineers screen pipe diameters quickly using flow rate, pipe material, schedule, liner, and traceable velocity ranges. Enter your design conditions and PipeSizer ranks candidate nominal pipe sizes by calculated velocity. The result highlights the best candidate, effective internal diameter, velocity status, and nearby alternatives so you can compare options without rebuilding a spreadsheet. KEY FEATURES • Rank candidate pipe diameters from your flow rate • Compare velocity against traceable recommended ranges • Support for clean water, process fluids, slurry, and utility lines • Carbon steel, stainless steel, HDPE, and common schedules or DR values • Optional liner allowance • SI and Imperial units • Save and reopen sizing results • Share results using the iOS share sheet • Send selected pipe data to Pump Mate • English, Spanish, French, and Portuguese • Fully functional offline PipeSizer is free and designed for fast engineering screening in the office or field. ENGINEERING NOTICE PipeSizer is a screening aid. Verify final selections against project criteria, applicable codes, manufacturer data, and a qualified engineering review.
PipeAtlas
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PipeAtlas is a professional piping engineering reference app for piping engineers, mechanical engineers, designers, fabricators, and inspectors. Access essential piping dimensions, weights, and engineering data anytime — in the office, workshop, or field. PipeAtlas provides a comprehensive database covering flanges, fittings, valves, pipes, gaskets, branch connections, fasteners, and piping design references based on international standards. FEATURES • Pipe dimensions and weights • Flange dimensions and weights • Pipe fitting dimensions and weights • Valve dimensions and face-to-face data • Gasket and fastener reference data • Piping component lookup • Engineering design references DATA COVERAGE PipeAtlas covers commonly used piping components and standards: 1. Flanges 1.1 ASME B16.5 Flanges • Weld Neck Flange • Slip-On Flange • Blind Flange • Threaded Flange • Socket Weld Flange • Lap Joint Flange 1.2 ASME B16.47 Flanges • Series A Flanges • Series B Flanges • Weld Neck Flange • Blind Flange 1.3 API 6A Flanges • Type 6B • Type 6BX 1.4 Other Flange Standards • ASME B16.36 Orifice Flanges • ASME Compact Flanges • EN 1092-1 Flanges • BS 10 Flanges • Hub and Clamp Connections 2. Pipe Fittings 2.1 ASME B16.9 Butt Weld Fittings • Elbows • Tees • Reducers • Caps 2.2 ASME B16.11 Forged Fittings • Threaded Fittings • Socket Weld Fittings 3. Valves ASME B16.10 Valve Dimensions Supported valve types: • Gate Valve • Globe Valve • Ball Valve • Check Valve • Butterfly Valve • Control Valve Including: • Flanged Valves • Butt Weld Valves • Threaded Valves • Socket Weld Valves 4. Line Blinds & Spacers ASME B16.48 Line Blanks • Spectacle Blind • Line Spade • Spacer • RTJ Ring Types 5. Welded Branch Connections Supported components: • Weldolet • Sockolet • Threadolet • Elbolet • Latrolet • Nipoflange • Flanged Branch Connections 6. Gaskets Supported gasket data: • Flat Ring Gaskets • Spiral Wound Gaskets • RTJ Gaskets (ASME B16.21) • Type R / RX / BX Rings 7. Pipes Pipe dimensions based on: • ASME B36.10M • ASME B36.19M Including: • Pipe by Schedule • Pipe by Wall Thickness 8. Fasteners • ISO Nuts • UNC Nuts 9. Design References Engineering references include: • ASME Composite Dimensions • Pipe Flexibility Reference • Pipe Leg Calculation • Pipe Loop Calculation • Safe Pipe Spans • Safe Pipe Spacing SUPPORTED STANDARDS • ASME B16.5 • ASME B16.9 • ASME B16.10 • ASME B16.11 • ASME B16.36 • ASME B16.47 • ASME B16.48 • ASME B16.21 • ASME B36.10M • ASME B36.19M • API 6A • EN 1092-1 • BS 10 Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: PipeSizer at none against PipeAtlas's 3. PipeSizer also leads on device support (3 vs 1) and iOS requirement (15.1 vs 18.6). On price and ads 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
Both are free to download. PipeAtlas sells 3 in-app purchases, starting at $1.99 per month. PipeSizer asks for nothing beyond the download.
| Parameter | PipeSizer | PipeAtlas |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 weeks | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 18.6 |
| Further details — not scored | ||
| Size | 46 MB | 61 MB |
| Age rating | 4+ | 4+ |
| Developer | Mario Cerda | Shenzhen Seize Times E-Commerce Co., Ltd. |
In-app purchases
PipeSizer
No in-app purchases
PipeAtlas
- PipeAtlas Pro One Month$1.991 Month
- PipeAtlas Pro One Year$19.991 Year
- PipeAtlas Pro Lifetime$29.99









