山海新能 vs Sheet Metal Master
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
山海新能
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山海新能是由山海新能(北京)能源科技有限公司(以下简称“山海新能”)独立研发的光伏太阳能电站管理系统。山海新能成立于2020年1月,注册资本2亿元,总部位于北京。公司着眼于全球可持续发展,以普及绿色能源为己任。山海新能依托强大的科技创新能力,专注光伏科技解决方案,研发出山海能源户用太阳能电站系统,为光伏发电事业提供全方位的一站式解决方案。 山海新能系统特点: 1、系统优势:集设计、生产、施工及运维于一体的高品质全产业链及一站式总承包服务,采用标准化设计,定制化生产,实现各部件无缝融合,保证发电系统的稳定高效。 2、智能运维:采用统一的监控管理系统,全天候大数据及人工检测,自动发现问题,随时响应启动维护方案。 3、品质保障:遵循最高的安全标准和耐用性,保障用户的发电收益。 4、个性选择:平改坡、阳光房等多样化的系统方案,以满足不同的用户需求,也可提供系统定制化服务。 5、简单便捷:安装容量小,并网流程简单,手机随查发电量及发电总收入等实时数据,数据尽在掌握。
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 in-app purchases: 山海新能 at none against Sheet Metal Master's 1. 山海新能 also leads on update cadence (every 11 days vs every 5 months) and iOS requirement (15.6 vs 17.0). On price, ads 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. Sheet Metal Master sells 1 in-app purchase, starting at $4.99 per month. 山海新能 asks for nothing beyond the download.
山海新能 ships an update every 11 days, Sheet Metal Master every 5 months. The most recent releases landed on October 15, 2026 and September 23, 2026 respectively.
| Parameter | 山海新能 | Sheet Metal Master |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 11 days — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 106 MB | 7 MB |
| Age rating | 12+ | 4+ |
| Developer | Shanhai Wisdom (Beijing) Energy Technology Co., Ltd. | 磊 高 |
In-app purchases
山海新能
No in-app purchases
Sheet Metal Master
- SheetMetal Master$4.991 Month









