# Foldmeter: Hinge Angle & Ruler — Level, protractor & caliper

> Level, protractor & caliper (iPhone/iPad app by appRabauken GbR.)

- Source: https://appshunter.io/ios/app/foldmeter-hinge-angle-and-ruler/id6820960845 (this page in markdown: same URL + `.md`)
- Developer: [appRabauken GbR](https://appshunter.io/developer/1050264132)
- Category: Utilities, Productivity
- Price: $0.99
- Age rating: 4+
- Requires: iOS 26.6 · 1 MB
- Languages: German (Germany), American English
- Released: 2026-10-15
- Data updated: 2026-10-26

## What is Foldmeter?

Foldmeter turns your iPhone into a measuring tool – and your iPhone Duo into a folding rule: unfold it and the app shows its angle to the degree, live as you fold.

ON EVERY IPHONE
• Ruler: Centimeters or inches along both screen edges.
• Diameter: Lay a screw or drill bit on the screen, drag the lines to its edges, read the size – with a hint for the matching thread size (e.g. M6 or 1/4″).
• Protractor: Place an object on the screen, drag the arms to its edges, read the angle.
• Level: Upright for shelves and picture frames, flat as a bubble level for tables and surfaces.

ON IPHONE DUO
• Hinge angle: Your Duo's angle in large digits, with a side view of the device.
• Hold values: Keep up to three readings and compare them.
• Ruler and diameter on both the inner and the outer display.

PRIVACY
No ads, no tracking, no account. All readings stay on your device.

## Chart rankings

- #173 in Top Paid · Utilities (US App Store)

## Is Foldmeter safe?

Not enough ratings yet to assess Foldmeter.

## Is Foldmeter legit?

Foldmeter: Hinge Angle & Ruler has limited verification signals. The AppsHunter Legitimacy Score for Foldmeter is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0.0 — 2026-10-15

No release notes.

## More apps by appRabauken GbR

- [Hafenpass - Kreuzfahrt Logbuch](https://appshunter.io/ios/app/hafenpass-kreuzfahrt-logbuch/id6821399762)

All apps by appRabauken GbR: https://appshunter.io/developer/1050264132

## Related topics

[hinder](https://appshunter.io/ios/topics/hinder)

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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 2026-10-26.*