# Level gauge vs Slope Calculator

The clearest difference is review sentiment: Level gauge at 94% against Slope Calculator's 58%. Level gauge also leads on in-app purchases (none vs 1) and rating (4.6 vs 4.3). Slope Calculator's advantage is ads (none vs shown) and ratings volume (105 vs 12). On price, update cadence and device support there is nothing between them.

Both are free to download. Slope Calculator sells 1 one-off in-app purchase. Level gauge asks for nothing beyond the download.

Level gauge holds the better App Store score, 4.6 against 4.3. That said, the two scores are not equally well evidenced: Slope Calculator has 105 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 94% of Level gauge's written reviews are positive against 58% of Slope Calculator's.

Level gauge ships an update every 9 months, Slope Calculator every 14 months. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Level gauge | Slope Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (12 ratings)](https://appshunter.io/ios/app/level-gauge/id558393386/reviews)** | [4.3 (105 ratings)](https://appshunter.io/ios/app/slope-calculator-calc/id1561129699/reviews) |
| Number of ratings | 12 | **105** |
| Positive reviews | **93.6% of reviews** | 58.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 9 months** | Every 14 months |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 16 MB | 5 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tatsuki](https://appshunter.io/developer/558393529) | [Phan Nhat Đang](https://appshunter.io/developer/1437390098) |

## What reviewers say

### Level gauge

[App page](https://appshunter.io/ios/app/level-gauge/id558393386)

This intuitive tool allows you to measure angles and levels in multiple orientations. It offers high precision with smooth movement and includes calibration and hold functions for stable readings. Customize its appearance while enjoying its powerful yet simple design.

**Highlights:** Measure horizontal, vertical, and flat angles, High precision measurements, Smooth and stable readings, Calibration function, Hold function, Customizable appearance

**Features:** Vision Pro support

**In-app purchases:** none


### Slope Calculator

[App page](https://appshunter.io/ios/app/slope-calculator-calc/id1561129699)

Calculate slope in angle, percentage, or ratio by inputting two sides of a right triangle. This intuitive and easy-to-use application provides the remaining necessary values.

**Highlights:** Calculate slope as angle, Calculate slope as percentage, Calculate slope as ratio, Input two sides of a right triangle, Calculate remaining triangle values, Intuitive and easy to use

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $1.99 | one-time |


## Frequently asked questions

### Is Level gauge free?

Level gauge is free to download, with no in-app purchases.

### Is Slope Calculator free?

Slope Calculator is free to download, with in-app purchases available.

### Which has better reviews, Level gauge or Slope Calculator?

Level gauge is rated higher. Level gauge averages 4.6 out of 5 from 12 ratings, while Slope Calculator averages 4.3 from 105 ratings.

### Do Level gauge or Slope Calculator have ads?

Level gauge shows ads; Slope Calculator does not.

### Which is updated more often, Level gauge or Slope Calculator?

Level gauge ships an update every 9 months, and Slope Calculator every 14 months. Most recently, Level gauge was updated on November 1, 2026 and Slope Calculator on November 7, 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.*