# Angle Gradient Inclinometer vs 北能云

The clearest difference is ads: 北能云 at none against Angle Gradient Inclinometer's shown. 北能云 also leads on update cadence (every 5 weeks vs every 8 months). On price, in-app purchases, device support and iOS requirement 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 ships an update every 8 months, 北能云 every 5 weeks. The most recent releases landed on October 14, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Angle Gradient Inclinometer | 北能云 |
| --- | --- | --- |
| Price | Free | Free |
| 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 5 weeks** |
| Monetization | Ad-supported | — |
| Size | 11 MB | 38 MB |
| Requires iOS | 13 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SHIGETO TAKAGI](https://appshunter.io/developer/519611619) | [Beizhong Yuneng (Beijing) Technology Co., Ltd](https://appshunter.io/developer/1656637898) |

## 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


### 北能云

[App page](https://appshunter.io/ios/app/id1659582612)

**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 北能云 free?

北能云 is free to download, with no in-app purchases.

### Do Angle Gradient Inclinometer or 北能云 have ads?

Angle Gradient Inclinometer shows ads; 北能云 does not.

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

Angle Gradient Inclinometer ships an update every 8 months, and 北能云 every 5 weeks. Most recently, Angle Gradient Inclinometer was updated on October 14, 2026 and 北能云 on September 29, 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.*