# Protractor (Angle measurement) vs Tack

The clearest difference is in-app purchases: Protractor (Angle measurement) at none against Tack's 3. Protractor (Angle measurement) also leads on device support (3 vs 1) and iOS requirement (15.0 vs 18). Tack's advantage is ads (none vs shown). On price there is nothing between them.

Both are free to download. Tack sells 3 in-app purchases, starting at $19.99 per month. Protractor (Angle measurement) asks for nothing beyond the download.

## The numbers

| Metric | Protractor (Angle measurement) | Tack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (10 ratings)](https://appshunter.io/ios/app/protractor-angle-measurement/id926663865/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 68.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | — |
| Monetization | Ad-supported | — |
| Size | 7 MB | 37 MB |
| Requires iOS | **15.0** | 18 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [EONSOFT](https://appshunter.io/developer/899851112) | [Tack-Tek LTD](https://appshunter.io/developer/1862879253) |

## What reviewers say

### Protractor (Angle measurement)

[App page](https://appshunter.io/ios/app/protractor-angle-measurement/id926663865)

Measure angles of objects using your device's camera. This tool provides a digital protractor for various applications, offering a convenient alternative to a physical tool. It's useful for homework, quick measurements, and when a physical protractor is unavailable.

**Highlights:** Measure angles with camera, Digital protractor functionality, Convenient alternative to physical tool, Useful for homework, Easy to use

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases:** none

**What reviewers like**

- 👍 Free and functional
- 👍 Accurate measurements
- 👍 Useful for homework
- 👍 Handy when needed
- 👍 Better than others

**What reviewers complain about**

- 👎 Hard to hold steady
- 👎 Camera is blurry
- 👎 Ads can be intrusive
- 👎 Difficult to use on paper
- 👎 Time limit on free version

**Reported bugs**

- Camera is always blurry
- Ads cover buttons
- App is a ghost app, cannot open
- Time limit makes it unusable
- Measures only in radians (free)

**Requested features**

- Ability to freeze image
- Ability to use photos for measurement
- Upload a still image and overlay protractor
- Improve accuracy with shaky hands
- Add option to take a picture and measure


### Tack

[App page](https://appshunter.io/ios/app/tack-tek/id6756797607)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tack Tek Subscriptions | $19.99 | per month |
| Yearly Subscription | $199.99 | per year |
| 1 scan | $6.99 | one-time |


## Frequently asked questions

### Is Protractor (Angle measurement) free?

Protractor (Angle measurement) is free to download, with no in-app purchases.

### Is Tack free?

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

### Do Protractor (Angle measurement) or Tack have ads?

Protractor (Angle measurement) shows ads; Tack does not.

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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.*