Comparison

Deflection Lite vs AR鲁班尺

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

AR鲁班尺

This app transforms your phone into a digital measuring tool, ideal for home buying, renting, and renovation. It offers customizable ruler lengths, unit conversions, and the ability to view CAD files and create floor plans. It also includes a feature to measure land area on a map.

Highlights
  • AR measurement with auspicious meanings
  • Customizable and preset ruler lengths
  • Multiple measurement units
  • View and analyze CAD files
  • Create floor plans
  • Map-based land area measurement
Features
Read full description

AR鲁班尺,手机秒变鲁班尺。买房租房与装修房屋时,方便快捷地测试户型。 本尺具有设置三种常用尺长---46.08厘米、42.9厘米和50.4厘米,还支持创造自己专属的尺长(上面三种之外的尺长),方便快速查询定吉凶,多种尺长对比更精准。不再需要多把尺子测量对比了。支持多种测量单位。 支持查看Cad文件,兼容多个DWG版本 --- AC1012 ~ AC1032。 快速创建平面图,快速查看图纸信息对应的字义。 测亩仪 --- 支持地图上画地块、步行和车载测量面积。 APP主要功能: 1. AR测量功能,直接测量显示对应的字义,实时保存多个测量数据与对应的鲁班尺字义。 2. 鲁班尺长度常用三种---46.08厘米、42.9厘米和50.4厘米,可以在这三种中任意切换,总有一种是你需要的。 3. 创造专属自己的尺长----用于常用3种尺长之外的长度。 4. 测量单位灵活设置---毫米,厘米,市寸与英寸,更贴近实际场景。 5. 可便捷查看各『 字 』代表的意思与寓意。 鲁班尺,亦作“鲁般尺”,进行建筑设计和室内装饰时时所用的测量工具,类今工匠所用的曲尺。它从左至右共分四排,其分别是传统的寸、鲁班尺、丁兰尺、厘米四种标尺。鲁班尺相传为春秋鲁国公输班所作,后经风水界加入八个字,以丈量房宅吉凶,并呼之为“门公尺”。其八个字分别是:“财”、“病”、“离”、“义”、“官”、“劫”、“害”、“本”,在每一个字底下,又区分为四小字,来区分吉凶意义。 LRule VIP Subscriptions • You can subscribe for LRule VIP Subscriptions to all features and content offered for purchase within the app. • Subscriptions are billed monthly or annually at the rate selected depending on the subscription plan. LRule offers two auto-renewing subscription options: (i) $8.99 / Year (ii) $4.99 / Month • You can subscribe to a monthly plan ($1.99 billed once a month), a yearly plan ($8.99 billed once a year). The prices are in US dollars. Pricing in other countries may vary and actual charges may be converted to your local currency depending on the country of residence. • Payment will be charged to iTunes Account at confirmation of purchase. • Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current period. • Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. - Privacy policy: https://appsdevelopinfo.web.app/2023/08/18/LRulePrivacyPolicy/ - Terms of use : https://appsdevelopinfo.web.app/2023/08/18/LRuleTerms/ 联系我们:1242296736@qq.com

Screenshots

Deflection Lite4 screens
AR鲁班尺4 screens

Verdict

The call

The clearest difference is review sentiment: AR鲁班尺 at 94% against Deflection Lite's 44%. AR鲁班尺 also leads on rating (4.9 vs 4.5) and iOS requirement (13.0 vs 15.0). Deflection Lite's advantage is price (Free vs $0.29) and in-app purchases (none vs 7). On ratings volume, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Deflection Lite is free to download; AR鲁班尺 costs $0.29 up front. AR鲁班尺 sells 7 in-app purchases, starting at $4.99 per month. Deflection Lite asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

AR鲁班尺 holds the better App Store score, 4.9 against 4.5. Both are backed by a comparable volume of ratings — 46 and 82 respectively. Written reviews point the same way: 44% of Deflection Lite's written reviews are positive against 94% of AR鲁班尺's.

UpkeepUpdate frequency

Deflection Lite ships an update every 3 months, AR鲁班尺 every 4 months. The most recent releases landed on October 4, 2026 and October 12, 2026 respectively.

Scorecard6 real differences · 4 level
Deflection Lite versus AR鲁班尺: the parameters behind the verdict, then further details
ParameterDeflection LiteAR鲁班尺
PriceFree — better$0.29
Rating4.5 (46 ratings)4.9 (82 ratings) — better
Positive reviews44.4% of reviews93.6% of reviews — better
Number of ratings4682 — better
Update frequencyEvery 3 months — betterEvery 4 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid — betterSubscription
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size108 MB105 MB
Age rating4+4+
DeveloperBlue Ketchep桐明 陈

Customer experience

Deflection Lite

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

AR鲁班尺

All ratings82 ratings
Positive98.8%
Neutral0.0%
Negative1.2%
Written reviews47 reviews
Positive93.6%
Neutral0.0%
Negative6.4%

In-app purchases

None

Deflection Lite

No in-app purchases

7 purchases

AR鲁班尺

Subscriptions2
  • 月VIP会员$4.991 Month
  • 年VIP会员$12.991 Year
One-time5
  • 移除广告$3.99
  • 最长测量长度为2千米$4.99
  • 46.08厘米尺长$4.99
Show 2 more
  • 50.4厘米尺长$4.99
  • 解锁所有功能$19.99

Questions

Is Deflection Lite free?
Deflection Lite is free to download, with no in-app purchases.
Is AR鲁班尺 free?
AR鲁班尺 costs $0.29, and also offers in-app purchases.
Which has better reviews, Deflection Lite or AR鲁班尺?
AR鲁班尺 is rated higher. Deflection Lite averages 4.5 out of 5 from 46 ratings, while AR鲁班尺 averages 4.9 from 82 ratings.
Do Deflection Lite or AR鲁班尺 have ads?
Neither Deflection Lite nor AR鲁班尺 shows ads.
Which is updated more often, Deflection Lite or AR鲁班尺?
Deflection Lite ships an update every 3 months, and AR鲁班尺 every 4 months. Most recently, Deflection Lite was updated on October 4, 2026 and AR鲁班尺 on October 12, 2026.

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