# RulerApp: True-Size Ruler — Measure with your screen ruler

> Measure with your screen ruler (iPhone/iPad app by Takumi Sekiguchi.)

- Source: https://appshunter.io/ios/app/rulerapp-true-size-ruler/id6790299129 (this page in markdown: same URL + `.md`)
- Developer: [Takumi Sekiguchi](https://appshunter.io/developer/1896725776)
- Category: Utilities
- Price: Free (on sale, was $1.99)
- Age rating: 4+
- Requires: iOS 16.0 · 6 MB
- Languages: American English, French (France), German (Germany), Hindi, Indonesian, Italian, Japanese, Korean, Brazilian Portuguese, Chinese (Simplified, China) and 5 more
- Released: 2026-07-14
- Data updated: 2026-08-19
- User reviews in markdown: https://appshunter.io/ios/app/rulerapp-true-size-ruler/id6790299129/reviews.md

## What is RulerApp?

RulerApp turns your iPhone or iPad screen into a true-to-size ruler, so you can measure everyday objects without hunting for a tape measure.

Features:
- On-screen ruler at true scale (cm/inch, down to 1mm or 1/16 inch)
- Accurate sizing using your device's actual PPI
- Works in portrait and landscape (landscape measures farther)
- Drag start/end markers to auto-calculate the distance between two points
- Quick calibration using a standard credit card (85.6mm)
- Built-in cm / inch / mm unit converter

Great for:
- Quick measurements when you don't have a tape measure
- DIY projects
- Designers checking print dimensions
- Students measuring for science experiments

Measurements are processed on your device.

FREE VERSION AND FULL ACCESS
The free version displays banner ads. A one-time Full Access purchase unlocks every feature and removes ads. Customers who previously bought the paid app also continue without ads.


## Version history (last 3 releases)

### 1.0.2 — 2026-08-15

Added a freemium option with ads in the free version. Paid pricing remains unchanged.

### 1.0.1 — 2026-07-24

Improved app stability and minor refinements.

### 1.0 — 2026-07-15

No release notes.

## More apps by Takumi Sekiguchi

- [PinTimer: Quick Timers](https://appshunter.io/ios/app/pintimer-quick-timers/id6770227102)
- [NumberDash: Math Runner](https://appshunter.io/ios/app/numberdash-math-runner/id6779497857)
- [CarePill — Medication Tracker](https://appshunter.io/ios/app/carepill-medication-tracker/id6782528630)
- [VoiceMemo: Record & Organize](https://appshunter.io/ios/app/voicememo-record-and-organize/id6790124396)
- [CardCalc: Track Card Spending](https://appshunter.io/ios/app/cardcalc-track-card-spending/id6790125861)
- [WarrantyBox: Warranty Tracker](https://appshunter.io/ios/app/warrantybox-warranty-tracker/id6790126059)

All apps by Takumi Sekiguchi: https://appshunter.io/developer/1896725776

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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 2026-08-19.*