# Protractor Smart — Measure Every Angle

> Smart instrument for measuring angles using device camera and touch. (iPhone/iPad app by ExaMobile S.A..)

- Source: https://appshunter.io/ios/app/protractor-smart/id1076530001 (this page in markdown: same URL + `.md`)
- Developer: [ExaMobile S.A.](https://appshunter.io/developer/506014841)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 4.60/5 from 242 App Store ratings · 52 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 11 MB
- Languages: American English, Polish
- Released: 2016-02-14
- Data updated: 2026-09-01
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/protractor-smart/id1076530001/reviews.md

## What is Protractor Smart?

Protractor - smart instrument to measure angles. Turn on the camera mode and measure the angle of buildings, mountains, or any other object around you.

This app includes two free measuring modes:
- Touch measure - touch the screen to set the angle (use camera view!).
- Plumb bob measure - pendulum - use to determine the slope (remember to calibrate the plumb).

In each mode, you can switch to camera view and take measurements of all objects around you.

Additional Premium mode: Polygon measurement lets you draw any shape on your screen to check all its angles. Turn on the camera to see the real object through your phone and copy its shape. You can also pick a photo from your gallery or take a new picture to draw a shape on the image. In Premium mode, you can change colors, add helper lines, and switch between different angle units.

All modes allows you to make a screenshot of anything on the screen.

Enjoy !!!

## Key features

- Camera-based angle measurement
- Touch measure mode
- Plumb bob measure for slopes
- Polygon measurement (premium)
- Screenshot functionality

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| AdBlock - Remove ads | $1.99 | one-time |


## Recent user reviews (10 of 52)

All indexed reviews: https://appshunter.io/ios/app/protractor-smart/id1076530001/reviews.md

### 1/5 — Мусор

*2026-08-02*

Зачем транспортиру интернет?

### 1/5 — 1 star

*2026-07-22*

I was never able to use it because all it did was load and load and load never got to the actual app

### 1/5 — 111

*2026-07-09*

Висит ,не запускается

### 1/5 — Werbung

*2026-06-29*

Bleibt beim Werbeclip stehen, nichts geht mehr. Untauglich, wird gelöscht!

### 1/5 — Datensammler

*2026-06-27*

Diese App ist eine Datensammel App , aus welchen Grund haben über 100 Unternehmen ein „berechtigtes Interesse“ an meinen Daten

### 1/5 — 1million de mouchards

*2026-05-19*

vous êtes clairement la cible avec cette application vous télécharger une bonne centaine de logiciels malveillants mouchards et autres malwaire 
alors réfléchissez bien

### 2/5 — Не грузится

*2026-04-29*

Все работало раньше. После обновления на 26 не грузится. Вчера было обновление iOS 26.4.2 - приложение не загружается. Жаль, было весьма неплохим.

### 1/5 — Всё испортилось😡

*2026-04-23*

После последнего обновления iOS перестал работать- висит loading… и Фсё 🙀🙀🤬🤬

### 2/5 — Не работает!!!!

*2026-04-23*

Что произошло? Раньше пользовался и все устраивало, но спустя несколько месяцев попробовал  воспользоваться вновь, и кроме надписи «загрузка» (несколько минут) никакой реакции!

### 1/5 — Funktion fehlt

*2025-12-18*

Es ist trotz premium Version nicht möglich Fotos hochzuladen!

## Frequently asked questions about Protractor Smart

### What does the Protractor Smart app do?

Protractor Smart is a digital instrument that allows you to measure angles using your smartphone's camera. It offers various modes to measure angles of real-world objects, slopes, and even complex shapes.

### What are the key features of Protractor Smart?

The app includes a 'Touch measure' mode where you tap the screen to define angles, and a 'Plumb bob measure' for determining slopes using a pendulum. A premium mode allows for polygon measurements by drawing shapes on screen or images.

### Is Protractor Smart free to use?

The app offers two measuring modes, 'Touch measure' and 'Plumb bob measure,' for free. Additional features, such as 'Polygon measurement,' are available through in-app purchases, indicating a freemium model.

### Can I measure angles of real-world objects with this app?

Yes, you can switch to camera view in both 'Touch measure' and 'Plumb bob measure' modes to measure the angles of buildings, mountains, or any other object around you. The premium polygon mode also allows you to trace shapes from real objects via the camera.

### What is the premium mode in Protractor Smart?

The premium mode, 'Polygon measurement,' enables you to draw any shape on your screen to check all its angles. You can do this by tracing real objects through the camera or by drawing on photos from your gallery or new pictures.

## Version history (last 5 releases)

### 1.6 — 2025-07-25

Bug fixes and stability improvements
New Premium features:
- No ads
- Polygon Measurement
- Angle measurements on image
- Angle measurements on camera preview
- Color customization
- Additional angle units (percent, radian)
- Customizable plumb bob shapes
- Laser and auxiliary lines in camera mode

### 1.5 — 2024-05-13

Fixed screenshot aspect ratio bug
Improved screen layouts
Bug fixes and stability improvements

### 1.4 — 2024-02-06

Fixed screenshot aspect ratio bug
Improved screen layouts
Bug fixes and stability improvements

### 1.3 — 2021-08-11

Improved screen layouts
Bug fixes and stability improvements

### 1.2 — 2021-07-07

Improved screen layouts
Bug fixes and stability improvements

## Apps similar to Protractor Smart

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Tape Measure & Ruler Арр](https://appshunter.io/ios/app/tape-measure-and-ruler/id1453537222) | 4.2 (4,291) | Free | Utilities |
| [Protractor for Angle Measuring](https://appshunter.io/ios/app/protractor-for-angle-measuring/id6474609160) | 4.5 (1,023) | Free | Utilities |
| [Protractor (Angle measurement)](https://appshunter.io/ios/app/protractor-angle-measurement/id926663865) | 3.4 (5) | Free | Utilities |
| [Measure Angles - Bubble Level](https://appshunter.io/ios/app/measure-angles-bubble-level/id458980311) | 4.2 (1,969) | Free | Utilities |
| [Protractor+](https://appshunter.io/ios/app/protractor-plus/id631311541) | 4.1 (10,412) | Free | Utilities |
| [Angle Meter 360](https://appshunter.io/ios/app/angle-meter-360/id1393860479) | 4.4 (359) | Free | Utilities |

## More apps by ExaMobile S.A.

- [Kawały i Dowcipy](https://appshunter.io/ios/app/kaway-i-dowcipy/id550448184)
- [Barzellette IT](https://appshunter.io/ios/app/barzellette-it/id554145008)
- [Chistes ES](https://appshunter.io/ios/app/chistes-es/id554148599)
- [Blagues FR](https://appshunter.io/ios/app/blagues-fr/id554151025)
- [Jeux de Filles](https://appshunter.io/ios/app/jeux-de-filles/id579574941)
- [Życzenia Świąteczne](https://appshunter.io/ios/app/zyczenia-swiateczne/id580794173)

All apps by ExaMobile S.A.: https://appshunter.io/developer/506014841

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-01.*