# Rules Measure — Rulers, Protractor & Shapes

> Rulers, Protractor & Shapes (iPhone/iPad app by Davis McDowell.)

- Source: https://appshunter.io/ios/app/rules-measure/id6761289085 (this page in markdown: same URL + `.md`)
- Developer: [Davis McDowell](https://appshunter.io/developer/1888685588)
- Category: Utilities, Developer Tools
- Price: Free
- Age rating: 4+
- Requires: iOS 26.0 · 12 MB
- Languages: English
- Released: 2026-03-31
- Data updated: 2026-05-15
- User reviews in markdown: https://appshunter.io/ios/app/rules-measure/id6761289085/reviews.md

## What is Rules Measure?

Rules turns your iPhone and iPad into calibrated, practical measurement tools.

Use Rules to measure with confidence on screen:
- Standard Ruler with imperial and metric units
- Protractor Tool with a draggable ray for angle measurement
- Shape Display for circles, rectangles, triangles, and polygons at real size
- Polygon Tool with perimeter, area, edge lengths, and interior angles
- Actual Size Viewer to display images at true physical size using image DPI metadata

Built for accuracy:
- Per-device display calibration
- Manual calibration override for custom tuning
- Fast unit switching between imperial and metric
- Clean interface optimized for quick, repeatable measurements

Whether you are checking print/layout scale, design dimensions, or geometry, Rules gives you reliable on-screen measuring tools in one app.


## Version history (last 2 releases)

### 1.1 — 2026-04-09

Added close button in display settings

### 1.0 — 2026-03-31

No release notes.

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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 2026-05-15.*