# Deflection Lite vs AR鲁班尺

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.

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.

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.

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.

## The numbers

| Metric | Deflection Lite | AR鲁班尺 |
| --- | --- | --- |
| Price | **Free** | $0.29 |
| Rating | [4.5 (46 ratings)](https://appshunter.io/ios/app/deflection-lite/id974474071/reviews) | **[4.9 (82 ratings)](https://appshunter.io/ios/app/ar/id1384164285/reviews)** |
| Number of ratings | 46 | **82** |
| Positive reviews | 44.4% of reviews | **93.6% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | **Paid** | Subscription |
| Size | 108 MB | 105 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Blue Ketchep](https://appshunter.io/developer/1131834248) | [桐明 陈](https://appshunter.io/developer/1197339496) |

## What reviewers say

### Deflection Lite

[App page](https://appshunter.io/ios/app/deflection-lite/id974474071)

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:** Vision Pro support

**In-app purchases:** none


### AR鲁班尺

[App page](https://appshunter.io/ios/app/ar/id1384164285)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月VIP会员 | $4.99 | per month |
| 年VIP会员 | $12.99 | per year |
| 移除广告 | $3.99 | one-time |
| 最长测量长度为2千米 | $4.99 | one-time |
| 46.08厘米尺长 | $4.99 | one-time |
| 50.4厘米尺长 | $4.99 | one-time |
| 解锁所有功能 | $19.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*