# Protractor Angle Measure Tool vs Core Timer

The clearest difference is in-app purchases: Core Timer at none against Protractor Angle Measure Tool's 3. Core Timer also leads on update cadence (every 5 days vs monthly). Protractor Angle Measure Tool's advantage is iOS requirement (16.0 vs 18.6). 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. Core Timer asks for nothing beyond the download.

Protractor Angle Measure Tool ships an update monthly, Core Timer every 5 days. The most recent releases landed on September 29, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Protractor Angle Measure Tool | Core Timer |
| --- | --- | --- |
| 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 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 79 MB | 11 MB |
| Requires iOS | **16.0** | 18.6 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Appcellent](https://appshunter.io/developer/1870956141) | [James Mowat](https://appshunter.io/developer/1839159413) |

## 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 |


### Core Timer

[App page](https://appshunter.io/ios/app/core-timer/id6752376369)

**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 Core Timer free?

Core Timer is free to download, with no in-app purchases.

### Do Protractor Angle Measure Tool or Core Timer have ads?

Neither Protractor Angle Measure Tool nor Core Timer shows ads.

### Which is updated more often, Protractor Angle Measure Tool or Core Timer?

Protractor Angle Measure Tool ships an update monthly, and Core Timer every 5 days. Most recently, Protractor Angle Measure Tool was updated on September 29, 2026 and Core Timer on September 17, 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.*