Hinge Angle Meter for iPhone Duo
The physical hinge becomes a live digital angle gauge.
Available now — version 1.0. Public availability was verified in the United States and Chile on October 19, 2026.
An innovative interaction built into the hardware.
Most phone angle tools infer the orientation of one rigid device. iPhone Duo introduces a second moving surface and a physical angle between the two sides. Hinge Angle Meter treats that changing fold as direct input, turning the hardware itself into a compact digital bevel gauge instead of placing a generic interface around the hinge.
- Live physical hinge-angle measurement on iPhone Duo
- Exact 90-degree, copy, complement, and custom target tools
- Pitch and roll level with zero calibration
- Camera-based AR distance measurement and local history
- Independent Apple Watch angle gauge
Fact sheet
- Name
- Hinge Angle Meter
- Editorial name
- Hinge Angle Meter for iPhone Duo
- Developer
- Appsolute LLC
- Category
- Utility
- Status
- Available now — version 1.0. Public availability was verified in the United States and Chile on October 19, 2026.
- Platforms
- iPhone Duo, supported iPhone and iPad models, and Apple Watch
- Price
- $0.99 in the verified U.S. listing; local prices vary
- Language
- English, German, Spanish, French, Japanese, Korean, Russian, and Simplified Chinese
- Game Center
- Not applicable
- Data
- No account, ads, analytics, or internet connection required. Measurements stay on the device.
- Website
- appsolutegroup.com/apps/duomeasure/
- Press contact
- lev@appsolutegroup.com
Images and artwork
These original assets may be used in editorial coverage of Hinge Angle Meter for iPhone Duo. Please credit Appsolute LLC where practical.
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In a line
Hinge Angle Meter turns the physical iPhone Duo hinge into a live digital angle gauge, with level, target-angle, AR distance, history, and Apple Watch tools.
In about 50 words
Hinge Angle Meter turns the physical iPhone Duo hinge into a live digital angle gauge. Open or close the device and the reading follows the fold. The app also includes level and zero calibration, target and complementary angles, AR distance, local history, and an independent Apple Watch angle tool.
In about 150 words
Hinge Angle Meter is a focused measurement toolkit built around a new kind of input: the physical fold of iPhone Duo. On supported folding hardware, opening or closing the device changes the live angle reading, so the phone can act as a compact digital bevel gauge. The interface separates the large instrument from its controls across the available surfaces and includes visual, sound, and haptic guidance. Beyond the hinge, the app offers exact 90-degree guidance, copy-angle and complementary-angle tools, pitch and roll level with zero calibration, custom target angles, camera-based AR distance measurement, and a local measurement history. A standalone Apple Watch app adds a Digital Crown target, Zero, Hold, and saved readings. Conventional supported iPhone and iPad models use motion sensors for angle and level tools. No account, advertising, analytics, or internet connection is required, and measurements stay on the device.
Hinge Angle Meter turns the iPhone Duo fold into a practical measurement tool
Available now on the App Store, the Appsolute LLC utility uses the physical hinge as live angle input and adds level, target-angle, AR distance, history, and Apple Watch tools.
Appsolute LLC has released Hinge Angle Meter, a measurement utility designed around the physical hinge of iPhone Duo. As the device opens or closes, the app follows the changing fold and presents the angle live, turning the phone into a compact digital bevel gauge.
The app also includes exact 90-degree guidance, copy and complementary angles, a pitch-and-roll level with zero calibration, custom targets, camera-based AR distance measurement, saved readings, and an independent Apple Watch angle gauge. On conventional supported iPhone and iPad models, the angle and level tools use motion sensors.
Hinge Angle Meter is available on the App Store. The verified U.S. price is $0.99, with local pricing shown by Apple. The app requires no account or internet connection, contains no advertising or analytics, and keeps measurements on the device.
About Appsolute LLC
Appsolute LLC is an independent software studio making focused apps and digital experiences. Its iPhone Duo work explores the physical hinge as a precise tool, a creative gesture, and a game control.
Press contact: lev@appsolutegroup.com · Press kit: https://appsolutegroup.com/apps/duomeasure/press/
Good to know.
What is innovative about the interaction?
The changing physical angle of the fold is the control and the measurement source. The app reads the hinge directly on supported hardware instead of treating the fold as unused space.
Do I need an iPhone Duo?
The signature live hinge tool requires supported folding hardware. Angle, level, target, AR distance, history, and Apple Watch functions also provide value on other supported Apple devices.
Is it a certified industrial instrument?
No certification claim is made. Hinge Angle Meter is a practical general-purpose utility; users should choose a certified instrument when a regulated or safety-critical measurement requires one.
Does it collect data?
No account, advertising, analytics, or internet connection is required. Measurements remain on the device, and camera frames used for AR measurement are not stored or transmitted.