Comparison

Deflection Lite vs 结构大师HD

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Deflection Lite

This app provides interactive and precise structural beam analysis. Easily visualize beam bending by dragging loads and supports, and calculate key engineering results like reactions, shear force, and bending moment.

Highlights
  • Interactive beam bending visualization
  • Calculate reactions, shear force, and bending moment
  • Built-in cross-section databases
  • Unlimited loads and supports
  • Export design to shareable permalink
  • Metric and standard units
Features
Read full description

Deflection Lite is the most interactive, fast, and precise app available for structural beam analysis. Simply drag loads and supports on the beam, and see how it bends. RESULTS Calculate reactions, shear force, bending moment, and beam deflection quickly and easily. CROSS SECTION DATABASES Specify elastic modulus and moment of inertia values directly, or find common shapes and materials using the built-in databases, which include most international steel sections, as well as some aluminum and wood shapes. UNLIMITED LOADS AND SUPPORTS Simply drag any load or support on the beam. • Concentrated point loads • Distributed loads • Moment loads • Simple supports • Fixed supports • Fixed hinges • Floating Gerber hinges OTHER FEATURES • Export your design to a permalink that you can share. • Automatic detection of local maxima and minima in diagrams • Metric and standard measurement units CONTACT We like to hear from you! Please email contact@ketchep.com if you have any issues, questions, or comments.

About

结构大师HD

This app provides structural analysis and mechanics calculations for structural engineers and field engineers on tablets. It offers advanced features like internal force diagrams, dynamics, influence lines, and AI-powered step-by-step solutions for various methods. The VIP version unlocks additional engineering modules, customization options, and reporting capabilities.

Highlights
  • Convenient modeling with touch input
  • Internal force diagrams and dynamics
  • AI-powered step-by-step solutions
  • Support for structural design and large structures
  • VIP features: engineering modules, custom sections, dark theme
  • Cross-platform compatibility
Read full description

【简介】 在平板电脑上进行结构分析,计算结构力学。 方便简单,通过指端画线——便捷的建模,流畅的体验,让结构输入变得方便。 功能强大,不仅可以出内力图,还支持动力学、影响线、几何构造…… 独创的智能模块,利用人工智能学算法支持输出结构力学教材上所有方法(位移法、力法…)的解题步骤。 如果您是结构设计人员或现场工程师,软件对结构精确建模和大型结构绘制都有很好的支持。 如果您想要在iPhone上使用,请安装“结构大师”App。 一般来说,希望用户有条件的话尽可能使用HD版。竖版“结构大师”是为了小屏手机设计的,在体验上可能受屏幕尺寸限制并不如人意。为平板电脑设计的HD版才是倾注了作者最大心血的经典版本。 VIP功能包括: 1)智能模块:可模拟人脑分析解题步骤 2)工程模块:内力包络图/内力系数表/混凝土配筋等 3)科技感满满的暗黑主题 4)材质库中可根据型材类型自定义截面 5)配合电脑端程序SMConsole可以输出计算报告 6)支持大型结构绘制的复制模型和镜像功能 7)检查器、隐藏网格线、特殊支座/连接/荷载等 注:VIP功能一次买断制,购买后不再收取相关费用。 历时八年,结构大师完美版本终于完成。 ·横跨三端,支持您在任意设备上进行结构分析; ·完美版支持11种荷载、斜支座、弹性支座以及特殊的节点连接形式; ·支持单位模式和简单的符号输入,内置材质库可以直接导入型钢截面; ·模拟人脑分析的智能模块大成,对习题的求解成功率在95%以上; ·新增工程模块,支持计算内力包络图、内力系数表、混凝土配筋等; ·新增暗黑主题、右侧面板,界面的整体交互方式有了质的飞跃…… 亲爱的工程师,敬请享用有史以来地表最强的结构力学求解器吧~ 微信公众号:结构大师工作室 官方微博:结构大师V 联系邮箱:structuremaster@163.com

Screenshots

Deflection Lite4 screens

Verdict

The call

The clearest difference is rating: Deflection Lite at 4.5 against 结构大师HD's 2.0. Deflection Lite also leads on in-app purchases (none vs 4) and ratings volume (46 vs 1). 结构大师HD's advantage is iOS requirement (9.0 vs 15.0). On price, update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. 结构大师HD sells 4 one-off in-app purchases. Deflection Lite asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Deflection Lite holds the better App Store score, 4.5 against 2.0. That said, the two scores are not equally well evidenced: Deflection Lite has 46 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Deflection Lite ships an update every 3 months, 结构大师HD every 2 months. The most recent releases landed on October 4, 2026 and October 6, 2026 respectively.

Scorecard6 real differences · 4 level
Deflection Lite versus 结构大师HD: the parameters behind the verdict, then further details
ParameterDeflection Lite结构大师HD
PriceFreeFree
Rating4.5 (46 ratings) — better2.0 (1 ratings)
Positive reviews44.4% of reviews—
Number of ratings46 — better1
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS15.09.0 — better
Further details — not scored
Size108 MB102 MB
Age rating4+4+
DeveloperBlue Ketchep颖达 陈

Customer experience

Deflection Lite

All ratings46 ratings
Positive82.6%
Neutral10.9%
Negative6.5%
Written reviews9 reviews
Positive44.4%
Neutral0.0%
Negative55.6%

结构大师HD

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Deflection Lite

No in-app purchases

4 purchases

结构大师HD

One-time4
  • 打赏$1.99
  • 高级功能购买$3.99
  • 解锁当前版本SMHD$19.99
Show 1 more
  • 解锁全版本$24.99

Questions

Is Deflection Lite free?
Deflection Lite is free to download, with no in-app purchases.
Is 结构大师HD free?
结构大师HD is free to download, with in-app purchases available.
Which has better reviews, Deflection Lite or 结构大师HD?
Deflection Lite is rated higher. Deflection Lite averages 4.5 out of 5 from 46 ratings, while 结构大师HD averages 2.0 from 1 ratings.
Do Deflection Lite or 结构大师HD have ads?
Neither Deflection Lite nor 结构大师HD shows ads.
Which is updated more often, Deflection Lite or 结构大师HD?
Deflection Lite ships an update every 3 months, and 结构大师HD every 2 months. Most recently, Deflection Lite was updated on October 4, 2026 and 结构大师HD on October 6, 2026.

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