# Angle Gradient Inclinometer vs Intero AI Assistant

The clearest difference is ads: Intero AI Assistant at none against Angle Gradient Inclinometer's shown. Intero AI Assistant also leads on update cadence (every 10 days vs every 8 months). Angle Gradient Inclinometer's advantage is iOS requirement (13 vs 16.0). 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 ships an update every 8 months, Intero AI Assistant every 10 days. The most recent releases landed on September 27, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Angle Gradient Inclinometer | Intero AI Assistant |
| --- | --- | --- |
| 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 10 days** |
| Monetization | Ad-supported | — |
| Size | 11 MB | 28 MB |
| Requires iOS | **13** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [SHIGETO TAKAGI](https://appshunter.io/developer/519611619) | [Phantom Design](https://appshunter.io/developer/1391951330) |

## 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


### Intero AI Assistant

[App page](https://appshunter.io/ios/app/intero-ai-assistant/id6738639498)

**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 Intero AI Assistant free?

Intero AI Assistant is free to download, with no in-app purchases.

### Do Angle Gradient Inclinometer or Intero AI Assistant have ads?

Angle Gradient Inclinometer shows ads; Intero AI Assistant does not.

### Which is updated more often, Angle Gradient Inclinometer or Intero AI Assistant?

Angle Gradient Inclinometer ships an update every 8 months, and Intero AI Assistant every 10 days. Most recently, Angle Gradient Inclinometer was updated on September 27, 2026 and Intero AI Assistant on September 14, 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.*