Clinometer+ Slope & Roof Pitch

Slope · Roof Pitch · Tilt

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

Now measures correctly however you hold the phone — flat on a roof, on edge against a rafter, or pointing up the slope. Uphill and downhill still tell apart. Clinometer+ Slope turns your iPhone into a precise angle and slope meter with four purpose-built modes — and now keeps a full history of every reading. FOUR MODES • Auto — radial gauge with degrees + grade % + ratio. • Roof Pitch — rise:run (6:12 etc.) + degrees + standard pitch matching (1:12 ~ 12:12). • Slope — grade % + walking categories (level / gentle / moderate / steep / severe) + ADA ramp / ladder safe references. • Tilt — bubble level visualization + ±degrees, perfect-level indicator. WHAT'S NEW • Measurement History — every reading is auto-saved with a 7-day trend chart and insights like "+12% vs your 7-day average". • Notes & Favorites — add a note ("kitchen floor", "patio") and star to any saved reading. • Compare Mode — pick two saved measurements and view the difference side by side. • Reference Library — ADA ramp max (1:12), standard roof pitches (3:12 / 6:12 / 8:12), ladder safe angle (75°), ramp categories, climbing slopes. • Share Result — share your current angle as an image. • CSV Export — share all your measurements as CSV for spreadsheets. CORE FEATURES • Real-time angle measurement (degrees / grade % / ratio) • Kalman-smoothed sensor readings • Hold function (freeze current reading) • Calibrate Zero (set any surface as the 0° reference) • Min / Max tracking with elapsed time • Live trend chart FOR ROOFERS · CARPENTERS · DIY · CONSTRUCTION · DRONE PILOTS · SATELLITE DISH INSTALLERS · TRAIL HIKERS · GARAGE MECHANICS Available in 14 languages.

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Fixed a rare crash that could happen right after opening Clinometer, and made start-up more reliable. Angle and slope measuring across Auto, roof pitch, grade and bubble level modes is smoother and steadier now. Thanks for using Clinometer!

The developer, Kyu-Hee Jang, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Identifiers
    • Usage Data
  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Identifiers
    • Usage Data
    • Diagnostics

Privacy practices may vary based, for example, on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

Provider
  • Kyu-Hee Jang
Size
  • 64.5 MB
Category
  • Utilities
Compatibility
Requires iOS 16.4 or later.
  • iPhone
    Requires iOS 16.4 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
18+
Copyright
  • © Copyright 2026 Simon Jang. All rights reserved.