# Protractor Angle Measure Tool vs Bubble Level & Inclinometer

The clearest difference is in-app purchases: Bubble Level & Inclinometer at none against Protractor Angle Measure Tool's 3. Bubble Level & Inclinometer also leads on iOS requirement (14.0 vs 16.0). Protractor Angle Measure Tool's advantage is update cadence (monthly vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. Protractor Angle Measure Tool sells 3 in-app purchases, starting at $4.99 per 7 days. Bubble Level & Inclinometer asks for nothing beyond the download.

Protractor Angle Measure Tool ships an update monthly, Bubble Level & Inclinometer every 4 months. The most recent releases landed on September 24, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Protractor Angle Measure Tool | Bubble Level & Inclinometer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (169 ratings)](https://appshunter.io/ios/app/protractor-angle-measure-tool/id6742701087/reviews)** | — |
| Number of ratings | **169** | — |
| Positive reviews | 13.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 79 MB | 22 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Appcellent](https://appshunter.io/developer/1870956141) | [lapnito.cz s.r.o.](https://appshunter.io/developer/1577358577) |

## What reviewers say

### Protractor Angle Measure Tool

[App page](https://appshunter.io/ios/app/protractor-angle-measure-tool/id6742701087)

This tool transforms your device into a precise angle measurement instrument. It's ideal for DIY projects, construction, and renovations, offering real-time readings in various formats. Get professional-grade accuracy for all your angled surface needs.

**Highlights:** Precise angle measurement, Vertical and horizontal orientations, Multiple measurement units (degrees, radians, gradians), Target angle alerts with audio/vibration, Real-time precision readings, Apple Watch support with haptic feedback

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Protractor Weekly | $4.99 | per 7 days |
| Protractor Weekly with Trial | $6.99 | per 7 days |
| Protractor Annual | $39.99 | per year |


### Bubble Level & Inclinometer

[App page](https://appshunter.io/ios/app/bubble-level-and-inclinometer/id6760186006)

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

**In-app purchases:** none


## Frequently asked questions

### Is Protractor Angle Measure Tool free?

Protractor Angle Measure Tool is free to download, with in-app purchases available.

### Is Bubble Level & Inclinometer free?

Bubble Level & Inclinometer is free to download, with no in-app purchases.

### Do Protractor Angle Measure Tool or Bubble Level & Inclinometer have ads?

Neither Protractor Angle Measure Tool nor Bubble Level & Inclinometer shows ads.

### Which is updated more often, Protractor Angle Measure Tool or Bubble Level & Inclinometer?

Protractor Angle Measure Tool ships an update monthly, and Bubble Level & Inclinometer every 4 months. Most recently, Protractor Angle Measure Tool was updated on September 24, 2026 and Bubble Level & Inclinometer on September 19, 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.*