Field Master: Measure & Level

AR Ruler, Decibel Meter, Calc

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

Measure lengths and box volume with your camera, lay the phone flat to level, check the noise, then send it all as a one page report with a site photo. No sign up needed. A camera tape measure, box volume, a bubble level, a noise meter and a scientific calculator in one app. Send what you measured as a one page report with a site photo. AR Distance and Volume Measure between two points with the camera. Before you place a point, a guide line and its length are shown, so you retake fewer measurements. Place four points and you get the volume too. Devices with LiDAR lock on more precisely, and you can switch between m, cm and ft. Bubble Level Lay the phone down for horizontal, stand it up and it switches to vertical by itself. The bubble rises to the high side just like a real one, and a 1 degree target, a 5 degree ring and a hint telling you which side is high make small tilts easy to see. A light vibration tells you when it is level. Noise Meter Read how loud it is right here in dB and keep it in the log. A colored scale shows at a glance whether it is quiet, normal, loud or harmful to your hearing. Log and Reports Values from the calculator, distance, volume, level and noise meter are saved with your notes. They group by date, you can search and filter by type, and export to CSV. Add a site name and a photo and build a one page report to send to a client or the office. Scientific Calculator Trigonometric and inverse trigonometric functions, logarithms, square root, square, reciprocal, factorial, percentage and sign change. Copy a result or save it straight to the log, and recall earlier results from the history. Quick Timer Start timing just by laying the phone down or standing it up, so it works with gloves on. Count down or count up, and it sounds when the time is done. About ads No feature is placed behind an ad. Nothing interrupts you while you measure a distance or check a level. Tap the chip at the top right of the home screen, watch one ad, and the banner stays away for the rest of the day. Seven Languages Korean, English, Japanese, Simplified and Traditional Chinese, Spanish and French, switchable inside the app at any time. Records stay on your device and are never sent to an outside server. No sign up is needed. AR measuring, the level and the noise meter give reference values from your phone's sensors. They are not certified measuring instruments and may be off, so when you need exact numbers, double check with a tape measure, a spirit level or a sound level meter.

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Log: level and noise entries used to stay in the language they were saved in. Now older entries also show in the language you pick. AR volume: points placed too close together no longer give a volume of 0. The app asks you to place the point again. Tapping a save button several times in a row no longer creates duplicate entries. The screen no longer stays on after you leave the level or noise meter during a countdown. The screen now stays on while you measure in AR. Fixed the level showing -0.0 degrees, the calculator delete key, and rows in Settings and the report screen that were hard to tap. In Europe, an ad privacy consent window appears on first launch, and you can change your choice in Settings at any time.

The developer, Bumjoon Lee, 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 Linked to You

    The following data may be collected and linked to your identity:

    • Identifiers
    • Usage Data

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

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

Seller
Bumjoon Lee
Size
10.3 MB
Category
Utilities
Compatibility
Requires iOS 17.0 or later.
  • iPhone
    Requires iOS 17.0 or later.
  • Mac
    Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
English and 6 more
  • English, French, Japanese, Korean, Simplified Chinese, Spanish, Traditional Chinese
Age Rating
4+
Copyright
© 2026 Bumjoon Lee