# Right Angle vs Mrmr OSC controller

The clearest difference is in-app purchases: Mrmr OSC controller at none against Right Angle's 9. Mrmr OSC controller also leads on iOS requirement (8.0 vs 26.0). Right Angle's advantage is update cadence (every 6 days vs every 2 months) and review sentiment (73% vs 59%). On price, rating, ads and device support there is nothing between them.

Both are free to download. Right Angle sells 9 in-app purchases, starting at $2.99 per month. Mrmr OSC controller asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 3.9 for Right Angle against 4.0 for Mrmr OSC controller. That said, the two scores are not equally well evidenced: Right Angle has 30 ratings behind it against 5, so its average is the more settled of the two. Written reviews are what separate them: 73% of Right Angle's written reviews are positive against 59% of Mrmr OSC controller's.

Right Angle ships an update every 6 days, Mrmr OSC controller every 2 months. The most recent releases landed on October 19, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Right Angle | Mrmr OSC controller |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (30 ratings)](https://appshunter.io/ios/app/right-angle/id292390648/reviews) | **[4.0 (5 ratings)](https://appshunter.io/ios/app/mrmr-osc-controller/id294296343/reviews)** |
| Number of ratings | **30** | 5 |
| Positive reviews | **73.3% of reviews** | 59.1% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 3 MB | 5 MB |
| Requires iOS | 26.0 | **8.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jerry Mayers](https://appshunter.io/developer/287638654) | [10base-t Interactive](https://appshunter.io/developer/288454707) |

## 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


### Mrmr OSC controller

[App page](https://appshunter.io/ios/app/mrmr-osc-controller/id294296343)

Transform your mobile device into a versatile controller for live installations, multimedia performances, and interactive exhibits. Create custom interfaces with a text editor and utilize open standards for seamless integration with VJ/DJ software and other multimedia tools.

**Highlights:** Custom interface creation via text editor, Multiuser support, Client peer-to-peer or client-server models, Open standards (zeroconfig, OSC), Dynamic, reconfigurable widgets, OSC controller for VJ/DJ software

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Right Angle free?

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

### Is Mrmr OSC controller free?

Mrmr OSC controller is free to download, with no in-app purchases.

### Which has better reviews, Right Angle or Mrmr OSC controller?

Mrmr OSC controller is rated higher. Right Angle averages 3.9 out of 5 from 30 ratings, while Mrmr OSC controller averages 4.0 from 5 ratings.

### Do Right Angle or Mrmr OSC controller have ads?

Neither Right Angle nor Mrmr OSC controller shows ads.

### Which is updated more often, Right Angle or Mrmr OSC controller?

Right Angle ships an update every 6 days, and Mrmr OSC controller every 2 months. Most recently, Right Angle was updated on October 19, 2026 and Mrmr OSC controller on October 5, 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.*