# Angle Gradient Inclinometer vs Screen discipline

The clearest difference is in-app purchases: Angle Gradient Inclinometer at none against Screen discipline's 2. Angle Gradient Inclinometer also leads on iOS requirement (13 vs 16.0). Screen discipline's advantage is ads (none vs shown) and update cadence (every 2 weeks vs every 8 months). On price and device support there is nothing between them.

Both are free to download. Screen discipline sells 2 one-off in-app purchases. Angle Gradient Inclinometer asks for nothing beyond the download.

Angle Gradient Inclinometer ships an update every 8 months, Screen discipline every 2 weeks. The most recent releases landed on October 23, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Angle Gradient Inclinometer | Screen discipline |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (311 ratings)](https://appshunter.io/ios/app/angle-gradient-inclinometer/id530077112/reviews)** | — |
| Number of ratings | **311** | — |
| Positive reviews | 51.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 8 months | **Every 2 weeks** |
| Monetization | Ad-supported | — |
| Size | 11 MB | 34 MB |
| Requires iOS | **13** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [SHIGETO TAKAGI](https://appshunter.io/developer/519611619) | [Jens Gunnar Solli Thoresen](https://appshunter.io/developer/6771960386) |

## 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


### Screen discipline

[App page](https://appshunter.io/ios/app/screen-discipline/id6771960384)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 15 min extension | $0.99 | one-time |
| Screen Discipline Pro | $3.99 | one-time |


## Frequently asked questions

### Is Angle Gradient Inclinometer free?

Angle Gradient Inclinometer is free to download, with no in-app purchases.

### Is Screen discipline free?

Screen discipline is free to download, with in-app purchases available.

### Do Angle Gradient Inclinometer or Screen discipline have ads?

Angle Gradient Inclinometer shows ads; Screen discipline does not.

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

Angle Gradient Inclinometer ships an update every 8 months, and Screen discipline every 2 weeks. Most recently, Angle Gradient Inclinometer was updated on October 23, 2026 and Screen discipline on October 9, 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.*