# Angle Gradient Inclinometer vs AltMitt

The clearest difference is price: Angle Gradient Inclinometer at Free against AltMitt's $0.99. AltMitt's advantage is ads (none vs shown) and update cadence (every 4 weeks vs every 8 months). On in-app purchases and device support there is nothing between them.

Angle Gradient Inclinometer is free to download; AltMitt costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Angle Gradient Inclinometer ships an update every 8 months, AltMitt every 4 weeks. The most recent releases landed on September 22, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Angle Gradient Inclinometer | AltMitt |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.4 (295 ratings)](https://appshunter.io/ios/app/angle-gradient-inclinometer/id530077112/reviews)** | — |
| Number of ratings | **295** | — |
| Positive reviews | 51.1% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 8 months | **Every 4 weeks** |
| Monetization | Ad-supported | — |
| Size | 11 MB | 17 MB |
| Requires iOS | 13 | **10.1** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | +4 |
| Developer | [SHIGETO TAKAGI](https://appshunter.io/developer/519611619) | [Vigleik Steinar Voll](https://appshunter.io/developer/898923144) |

## 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


### AltMitt

[App page](https://appshunter.io/ios/app/altmitt/id1455243975)

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

**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 AltMitt free?

AltMitt costs $0.99, with no in-app purchases.

### Do Angle Gradient Inclinometer or AltMitt have ads?

Angle Gradient Inclinometer shows ads; AltMitt does not.

### Which is updated more often, Angle Gradient Inclinometer or AltMitt?

Angle Gradient Inclinometer ships an update every 8 months, and AltMitt every 4 weeks. Most recently, Angle Gradient Inclinometer was updated on September 22, 2026 and AltMitt on September 9, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*