管道计算器Pro vs Sheet Metal Master
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
管道计算器Pro
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管道计算器是一款功能齐全,十分实用的应用软件。包含了弯头计算、来回弯计算、三通弯头计算、摇头弯计算、水平弯计算、空间弯计算等,对于管道工,焊工以及工程师,可以很大程度的提高工作效率,为用户带来了很大的便利。
Sheet Metal Master
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Sheet Metal Master is an on-device calculation tool for duct fabrication, pipe fitting, and sheet-metal layout. Enter measurable dimensions to preview patterns, define fabrication allowances, save projects, and export DXF files. 15 TASKS • Ductwork: round-to-rectangle, rectangular reducer, 90° round tee, rectangular offset, rectangular miter elbow, and rectangular tee • Pipe and vessel work: oblique round tee, equal-diameter round Y branch, segmented elbow, cone/frustum, oblique-cut pipe, and spherical-head gores • Bending: single bend, double bend, and box bend WORKFLOW • Live result and flat-pattern previews • Welding, riveting, lock-seam, and manual allowances • Save, reopen, and update local projects • Share calculation summaries • Export millimeter-based ASCII R12 DXF files Core calculations run locally on your device. The round Y branch is a field-fit construction. A sphere cannot be flattened without strain, so spherical-head gores are an approximation with a reported boundary-strain value. Always verify material, connection details, and a sample before production cutting. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: 管道计算器Pro at every 2 weeks against Sheet Metal Master's every 5 months. 管道计算器Pro also leads on iOS requirement (13.0 vs 17.0). On price, 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
Both are free to download. 管道计算器Pro sells 3 one-off in-app purchases and Sheet Metal Master sells 1 in-app purchase, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
管道计算器Pro ships an update every 2 weeks, Sheet Metal Master every 5 months. The most recent releases landed on September 28, 2026 and September 8, 2026 respectively.
| Parameter | 管道计算器Pro | Sheet Metal Master |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks — better | Every 5 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 52 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | ChenShu Zhuang | 磊 高 |
In-app purchases
管道计算器Pro
- 月度会员$3.99
- 年度会员$14.99
- 永久会员$29.99
Sheet Metal Master
- SheetMetal Master$4.991 Month








