# Protractor Fold — Measure angles with the fold

> Measure angles with the fold (iPhone/iPad app by Tom Nicholas.)

- Source: https://appshunter.io/ios/app/protractor-fold/id6823804784 (this page in markdown: same URL + `.md`)
- Developer: [Tom Nicholas](https://appshunter.io/developer/1891346166)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 6 MB
- Languages: American English
- Released: 2026-10-24
- Data updated: 2026-10-25

## What is Protractor Fold?

Protractor Fold turns your iPhone into a precise, easy-to-read protractor.

On a foldable iPhone, the hinge does the measuring. Open the phone like a of compasses and the needle follows, to a tenth of a degree. Lay it against a corner, a int or a mitre and read the angle at a glance.

On any other iPhone, Protractor Fold uses the compass. Point the phone along one line, tap to start, then turn it to the next line and read how far you've turned.

FEEL EVERY DEGREE
A light tick for every degree, a firmer one every 5°, and a strong one every 10°, just like the marks on a real protractor. You can feel your way to an angle without oking. Clicks can be turned off, and they follow your silent switch.

A CLASSIC PROTRACTOR
• School-style 180° scale with inner and outer number rows
• Large readout to 0.1°
• Hold to freeze the reading so you can read it at your own pace
• Works on both the inner and outer displays of a foldable iPhone

PROTRACTOR PRO
One purchase removes ads and unlocks:
• Target angle: set an angle and get a stronger tick as you close in, then a chime when you hit it
• Zero here: measure relative to any starting position
• Supplementary angle (180 − θ)
• Slope as a percentage and as rise : run, for ramps, roofs and drainage
• Saved measurements with notes
• Fine calibration

PRIVATE BY DESIGN
Your measurements and settings stay on your device. No account, no sign-up, and the compass needs no location permission.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Protractor Pro | $2.99 | one-time |


## Is Protractor Fold safe?

Not enough ratings yet to assess Protractor Fold.

## Is Protractor Fold legit?

Protractor Fold has limited verification signals. The AppsHunter Legitimacy Score for Protractor Fold is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-10-24

No release notes.

## More apps by Tom Nicholas

- [PasserBy](https://appshunter.io/ios/app/passerby/id6761765417)
- [Unfold: Flashcards](https://appshunter.io/ios/app/unfold-flashcards/id6823808600)

All apps by Tom Nicholas: https://appshunter.io/developer/1891346166

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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 2026-10-25.*