# Angle Gradient Inclinometer vs RSR Alignment App

The clearest difference is review sentiment: Angle Gradient Inclinometer at 51% against RSR Alignment App's 0%. Angle Gradient Inclinometer also leads on rating (4.3 vs 3.0) and ratings volume (314 vs 4). RSR Alignment App's advantage is ads (none vs shown) and update cadence (every 3 months vs every 8 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Angle Gradient Inclinometer holds the better App Store score, 4.3 against 3.0. That said, the two scores are not equally well evidenced: Angle Gradient Inclinometer has 314 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 51% of Angle Gradient Inclinometer's written reviews are positive against 0% of RSR Alignment App's.

Angle Gradient Inclinometer ships an update every 8 months, RSR Alignment App every 3 months. The most recent releases landed on November 1, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Angle Gradient Inclinometer | RSR Alignment App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (314 ratings)](https://appshunter.io/ios/app/angle-gradient-inclinometer/id530077112/reviews)** | [3.0 (4 ratings)](https://appshunter.io/ios/app/rsr-alignment-app/id1503116170/reviews) |
| Number of ratings | **314** | 4 |
| Positive reviews | **51.1% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 8 months | **Every 3 months** |
| Monetization | Ad-supported | **Free** |
| Size | 11 MB | 57 MB |
| Requires iOS | 13 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SHIGETO TAKAGI](https://appshunter.io/developer/519611619) | [TMC CO.,LTD](https://appshunter.io/developer/920283832) |

## What reviewers say

### Angle Gradient Inclinometer

[App page](https://appshunter.io/ios/app/angle-gradient-inclinometer/id530077112)

Easily measure tilt angles with this free protractor app. It displays inclination from 0 to 359 degrees, along with gradient percentages and angles summing to 180 or 360 degrees. Switch to theodolite mode to set a specified angle to zero.

**Highlights:** Measure tilt angles 0-359 degrees, Display gradient percentage, Show sum angles (180/360), Theodolite mode, Set specified angle to zero

**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 Angle Gradient Inclinometer free?

Angle Gradient Inclinometer is free to download, 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, Angle Gradient Inclinometer or RSR Alignment App?

Angle Gradient Inclinometer is rated higher. Angle Gradient Inclinometer averages 4.3 out of 5 from 314 ratings, while RSR Alignment App averages 3.0 from 4 ratings.

### Do Angle Gradient Inclinometer or RSR Alignment App have ads?

Angle Gradient Inclinometer shows ads; RSR Alignment App does not.

### Which is updated more often, Angle Gradient Inclinometer or RSR Alignment App?

Angle Gradient Inclinometer ships an update every 8 months, and RSR Alignment App every 3 months. Most recently, Angle Gradient Inclinometer was updated on November 1, 2026 and RSR Alignment App on October 24, 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.*