# Right Angle vs ShapeInfo Plus

The clearest difference is price: Right Angle at Free against ShapeInfo Plus's $0.99. Right Angle also leads on update cadence (every 5 days vs every 6 months). ShapeInfo Plus's advantage is rating (4.6 vs 3.9) and in-app purchases (none vs 9). On review sentiment, ratings volume, ads and device support there is nothing between them.

Right Angle is free to download; ShapeInfo Plus costs $0.99 up front. Right Angle sells 9 in-app purchases, starting at $2.99 per month. ShapeInfo Plus asks for nothing beyond the download.

ShapeInfo Plus holds the better App Store score, 4.6 against 3.9. Both are backed by a comparable volume of ratings — 30 and 31 respectively. Written reviews complicate that: 73% of Right Angle's written reviews are positive against 68% of ShapeInfo Plus's, so the app with the better star average is not the one people write more warmly about.

Right Angle ships an update every 5 days, ShapeInfo Plus every 6 months. Both last shipped on October 11, 2026.

## The numbers

| Metric | Right Angle | ShapeInfo Plus |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [3.9 (30 ratings)](https://appshunter.io/ios/app/right-angle/id292390648/reviews) | **[4.6 (31 ratings)](https://appshunter.io/ios/app/shapeinfo-plus/id983851989/reviews)** |
| Number of ratings | 30 | **31** |
| Positive reviews | **73.3% of reviews** | 67.9% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 6 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 2 MB | 11 MB |
| Requires iOS | 26.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jerry Mayers](https://appshunter.io/developer/287638654) | [Noriyasu Kutsuzawa](https://appshunter.io/developer/668500806) |

## What reviewers say

### Right Angle

[App page](https://appshunter.io/ios/app/right-angle/id292390648)

This app calculates triangles and segments of circles. It supports various angle input formats and offers solutions for oblique triangles and circle segments with optional add-ons. A right triangle calculator is included for free.

**Highlights:** Triangle solver, Circle segment calculator, Multiple angle units (degrees, radians, DMS, grade, x/12), Oblique triangle solver (add-on), Circle segment solver (add-on), Free right triangle calculator

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Renews Monthly | $2.99 | per month |
| Renews Yearly | $14.99 | per year |
| Small Tip | $2.99 | one-time |
| Medium Tip | $4.99 | one-time |
| Segments Calculator | $5.99 | one-time |
| Oblique Triangle Calculator | $5.99 | one-time |
| Segment & Oblique Triangle | $6.99 | one-time |
| Large Tip | $9.99 | one-time |
| Huge Tip | $29.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Saves time
- 🛠️ Useful for construction/trades
- 📐 Accurate calculations
- 💡 Unique functionality (historically)

**What reviewers complain about**

- 🐛 Recent updates removed key features
- 🐛 In-app purchases required for previously free features
- 🐛 Loss of purchase after update
- 🐛 App now requires payment for features
- 🐛 Misleading free app description

**Reported bugs**

- App crashes after startup
- Update caused app to crash
- Loss of previously purchased unlocked app
- Keyboard covers input fields
- App changes mm to unspecified units

**Requested features**

- Restore fraction support
- Restore feet and inches support
- Provide both angles of a right triangle
- Allow scrolling or hiding the keyboard
- Bundling with other tools


### 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


## Frequently asked questions

### Is Right Angle free?

Right Angle is free to download, with in-app purchases available.

### Is ShapeInfo Plus free?

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

### Which has better reviews, Right Angle or ShapeInfo Plus?

ShapeInfo Plus is rated higher. Right Angle averages 3.9 out of 5 from 30 ratings, while ShapeInfo Plus averages 4.6 from 31 ratings.

### Do Right Angle or ShapeInfo Plus have ads?

Neither Right Angle nor ShapeInfo Plus shows ads.

### Which is updated more often, Right Angle or ShapeInfo Plus?

Right Angle ships an update every 5 days, and ShapeInfo Plus every 6 months. Most recently, Right Angle was updated on October 11, 2026 and ShapeInfo Plus on October 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.*