# ShapeInfo Plus vs RSR Alignment App

The clearest difference is review sentiment: ShapeInfo Plus at 68% against RSR Alignment App's 0%. ShapeInfo Plus also leads on rating (4.6 vs 3.0) and ratings volume (31 vs 2). RSR Alignment App's advantage is price (Free vs $0.99) and update cadence (every 3 months vs every 6 months). On ads, in-app purchases and device support there is nothing between them.

RSR Alignment App is free to download; ShapeInfo Plus costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ShapeInfo Plus holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: ShapeInfo Plus has 31 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 68% of ShapeInfo Plus's written reviews are positive against 0% of RSR Alignment App's.

ShapeInfo Plus ships an update every 6 months, RSR Alignment App every 3 months. The most recent releases landed on September 23, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | ShapeInfo Plus | RSR Alignment App |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.6 (31 ratings)](https://appshunter.io/ios/app/shapeinfo-plus/id983851989/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/rsr-alignment-app/id1503116170/reviews) |
| Number of ratings | **31** | 2 |
| Positive reviews | **67.9% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 months** |
| Monetization | Paid | **Free** |
| Size | 11 MB | 57 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Noriyasu Kutsuzawa](https://appshunter.io/developer/668500806) | [TMC CO.,LTD](https://appshunter.io/developer/920283832) |

## What reviewers say

### ShapeInfo Plus

[App page](https://appshunter.io/ios/app/shapeinfo-plus/id983851989)

This app calculates lengths, angles, and areas for various geometric shapes. It supports a wide range of 2D and 3D shapes, making it a handy tool for engineers and students.

**Highlights:** Calculate lengths, angles, and area, Calculate volume for 3D shapes, Supports various 2D and 3D shapes, User-friendly input for calculations, Immediate calculation results

**Features:** Vision Pro support

**In-app purchases:** none


### RSR Alignment App

[App page](https://appshunter.io/ios/app/rsr-alignment-app/id1503116170)

Measure camber and toe angles using your smartphone. The app displays angles for all four corners, allows zero point adjustment, and stores measurement data for later reference. It also lets you change the measurement interval.

**Highlights:** Measure camber angle, Measure toe angle, Display four-corner angles, Zero point adjustment, Store measurement data, Change measurement interval

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ShapeInfo Plus free?

ShapeInfo Plus costs $0.99, with no in-app purchases.

### Is RSR Alignment App free?

RSR Alignment App is free to download, with no in-app purchases.

### Which has better reviews, ShapeInfo Plus or RSR Alignment App?

ShapeInfo Plus is rated higher. ShapeInfo Plus averages 4.6 out of 5 from 31 ratings, while RSR Alignment App averages 3.0 from 2 ratings.

### Do ShapeInfo Plus or RSR Alignment App have ads?

Neither ShapeInfo Plus nor RSR Alignment App shows ads.

### Which is updated more often, ShapeInfo Plus or RSR Alignment App?

ShapeInfo Plus ships an update every 6 months, and RSR Alignment App every 3 months. Most recently, ShapeInfo Plus was updated on September 23, 2026 and RSR Alignment App on June 11, 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.*