# Protractor vs ApCalendar

The clearest difference is rating: ApCalendar at 5.0 against Protractor's 1.8. ApCalendar also leads on in-app purchases (none vs 6) and iOS requirement (11.0 vs 17.0). Protractor's advantage is ratings volume (6 vs 1). On price, ads and device support there is nothing between them.

Both are free to download. Protractor sells 6 in-app purchases, starting at $4.99 per month. ApCalendar asks for nothing beyond the download.

ApCalendar holds the better App Store score, 5.0 against 1.8. That said, the two scores are not equally well evidenced: Protractor has 6 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | Protractor | ApCalendar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (6 ratings)](https://appshunter.io/ios/app/protractor-measure-angles/id1601838509/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/apcalendar/id6736649546/reviews)** |
| Number of ratings | **6** | 1 |
| Positive reviews | 63.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | — |
| Monetization | Free with in-app purchases | **Free** |
| Size | 7 MB | 26 MB |
| Requires iOS | 17.0 | **11.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Noadit, Inc.](https://appshunter.io/developer/1516754355) | [Adtech Innovation Limited](https://appshunter.io/developer/1683250193) |

## What reviewers say

### Protractor

[App page](https://appshunter.io/ios/app/protractor-measure-angles/id1601838509)

Measure angles precisely using your phone's screen, gyroscope, or camera. Offers smart presets, real-time feedback with high accuracy, and calibration features to adapt to various situations.

**Highlights:** 3-in-1 measurement modes, Smart angle presets with alerts, Hyper-responsive feedback (≤0.5° accuracy), Auto dynamic compensation calibration, Anti-shake technology for motion scenes, Screen lock for measurements

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP | $4.99 | per month |
| Bubble Tea | $0.99 | one-time |
| Sponsor | $4.99 | one-time |
| Coffee | $4.99 | one-time |
| Sponsor | $19.99 | one-time |
| Sponsor | $99.99 | one-time |


### ApCalendar

[App page](https://appshunter.io/ios/app/apcalendar/id6736649546)

A versatile calendar tool offering multiple styles, including lunar calendar support and public holidays. Users can add notes to their calendar events.

**Highlights:** Multiple calendar styles, Lunar calendar support, Public holiday tracking, Add calendar notes, Event reminders

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Protractor free?

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

### Is ApCalendar free?

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

### Which has better reviews, Protractor or ApCalendar?

ApCalendar is rated higher. Protractor averages 1.8 out of 5 from 6 ratings, while ApCalendar averages 5.0 from 1 ratings.

### Do Protractor or ApCalendar have ads?

Neither Protractor nor ApCalendar shows ads.

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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.*