# Angle Gradient Inclinometer — Angle 360 Degree, Gradient%

> Free tilt angle protractor measuring inclination, gradient, and angles. (iPhone/iPad app by SHIGETO TAKAGI.)

- Source: https://appshunter.io/ios/app/angle-gradient-inclinometer/id530077112 (this page in markdown: same URL + `.md`)
- Developer: [SHIGETO TAKAGI](https://appshunter.io/developer/519611619)
- Category: Productivity, Utilities
- Price: Free
- Rating: 4.40/5 from 295 App Store ratings · 45 written reviews indexed
- Age rating: 4+
- Requires: iOS 13 · 11 MB
- Languages: American English, Japanese
- Released: 2012-05-31
- Data updated: 2026-08-26
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/angle-gradient-inclinometer/id530077112/reviews.md

## What is Angle Gradient Inclinometer?

Simple tilt angle protractor free application that can easily measure tilt simply by tilting the device. The angle of inclination measured from 0 degree to 359 degrees, converted gradient (%), angle at which sum is 180 degrees / 360 degrees are displayed at the same time. You can switch to the theodolite, the specified angle can be set to 0 degree. ( 45 Degrees = Gradient 100 % )

## Key features

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

## Recent user reviews (10 of 45)

All indexed reviews: https://appshunter.io/ios/app/angle-gradient-inclinometer/id530077112/reviews.md

### 2/5 — Too many ads

*2026-07-21*

It has too many ads

### 1/5 — Pourriciel

*2026-06-22*

Pub pub

### 5/5 — 便利

*2026-03-03*

たまーにしか使わないけど、あると便利なんよ

**Developer response:** Thank you for your review. Please let me know if you have any requests.

### 4/5 — 見やすい　わかりやすい

*2026-01-02*

傾斜度に傾斜％が表示されるから
わかりやすい
測りたい場所に置くだけ
良いんじゃないかな

**Developer response:** Thank you for your review. Please let me know if you have any requests.

### 1/5 — Pub pub pub

*2025-08-06*

Voir le titre

### 1/5 — Doesn’t reliably work

*2025-05-27*

Ads galore. Cumbersomee

### 3/5 — This Protractor 360 app

*2025-02-03*

The % reading fluctuates too rapid

### 5/5 — 勾配

*2025-02-02*

勾配（%）を真ん中に大きく表示できれば有料でもいい。
【追記】
と言ってみたら対応してくれました。
Thank you so much!!😻

**Developer response:** Thank you for your review. Please let me know if you have any requests. Tap " % " to exchange.

### 5/5 — メルデ

*2024-10-31*

研究の時に角度を図るのが必要だったのですが、このアプリのおかげで手間を削減出来ました。ありがとうございます。

**Developer response:** Thank you for your review. Please let me know if you have any requests.

### 5/5 — Percent accuracy.

*2024-10-19*

Have used this app while trail building mtn bike trails. It has worked excellent. Lately though it seems that it’s accuracy on degree scale has dropped the percent scale down to less than desired. Did I miss something. I’m sure the percent scale used to go up by ones. But know the degree scale goes up by ones which throws off the accuracy.

## Frequently asked questions about Angle Gradient Inclinometer

### What does the Angle Gradient Inclinometer app do?

This app functions as a free tilt angle protractor. It allows you to measure inclination angles from 0 to 359 degrees simply by tilting your device. It also displays the converted gradient percentage and angles that sum to 180 or 360 degrees simultaneously.

### What are the key features of this app?

Key features include measuring tilt angles from 0 to 359 degrees, displaying the gradient percentage, showing angles that sum to 180 or 360 degrees, and a theodolite mode where you can set a specified angle to zero.

### Is this app free to use?

Yes, the Angle Gradient Inclinometer is a free application. However, it does display advertisements to support its development and availability.

### What is the relationship between angle and gradient percentage?

The app displays the converted gradient percentage alongside the angle measurement. For example, it notes that 45 degrees is equivalent to 100% gradient.

### What is theodolite mode used for?

Theodolite mode allows you to set a specific angle measurement to zero. This can be useful for establishing a baseline or reference point for subsequent measurements.

## Version history (last 5 releases)

### 20260810 — 2026-08-11

User interface improved.

### 20250131 — 2025-02-02

User interface improved.

### 20240313 — 2024-03-14

User interface improved.

### 20230302 — 2023-03-03

User interface improved.

### 20230124 — 2023-01-25

Bug fixed.

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## More apps by SHIGETO TAKAGI

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All apps by SHIGETO TAKAGI: https://appshunter.io/developer/519611619

## Related topics

[incline](https://appshunter.io/ios/topics/incline) · [slope angle](https://appshunter.io/ios/topics/slope-angle) · [angle gradient inclinometer](https://appshunter.io/ios/topics/angle-gradient-inclinometer) · [inclinometer free](https://appshunter.io/ios/topics/inclinometer-free) · [degree finder free](https://appshunter.io/ios/topics/degree-finder-free) · [incline measure](https://appshunter.io/ios/topics/incline-measure) · [angle tool](https://appshunter.io/ios/topics/angle-tool) · [360 degree app](https://appshunter.io/ios/topics/360-degree-app) · [degree finder](https://appshunter.io/ios/topics/degree-finder) · [inclinometer](https://appshunter.io/ios/topics/inclinometer) · [simple inclinometer](https://appshunter.io/ios/topics/simple-inclinometer) · [free angle finder](https://appshunter.io/ios/topics/free-angle-finder) · [angle meter 360](https://appshunter.io/ios/topics/angle-meter-360) · [oontz angle 3](https://appshunter.io/ios/topics/oontz-angle-3) · [digital inclinometer](https://appshunter.io/ios/topics/digital-inclinometer) · [free angle finder app](https://appshunter.io/ios/topics/free-angle-finder-app) · [theodolite](https://appshunter.io/ios/topics/theodolite) · [angle meter](https://appshunter.io/ios/topics/angle-meter) · [degree angle](https://appshunter.io/ios/topics/degree-angle) · [digital angle finder](https://appshunter.io/ios/topics/digital-angle-finder)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*