Comparison

Angle Meter PRO vs Smart Protractor & Angle Meter

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Angle Meter PRO

Measure angles and slopes with precision using your device's camera. Offers real-time angle display, multiple measurement modes, and the ability to capture and save measurements for later reference.

Highlights
  • Real-time angle display
  • Two measurement modes
  • Camera-based angle measurement
  • Capture and save measurements
  • Level meter for vertical tilt
  • Calibration option for accuracy
Features
Read full description

Angle Meter PRO lets you measure the angle or slope. Note that you will be able to measure a variety of slope forms. You can choose to directly measure the surface by the second mode, which makes it relatively easy to measure up,or to measure the angle of the target away a short distance away from you after kilo meter. By measuring the angle from the camera aperture. This is a reference line, respectively, and the angles are measured while the display on your phone continuously. You also can take what you measure by showing the angle to keep a check on it later. Featured: 1) Clean and minimal UI 2) Real time display angle value reference by horizontal axis. 3) 2 mode for using(Horizontal Mode and Vertical Mode ). 4) Support measure angles with the camera mode. 4.1) you can take screen short can be a target for record store at a later time. 5) Support the ability to measure the angle from the image. 6) Graphics Animation display related by mode. 7) Display 0 to 90 degree reference by horizontal axis. 8) Calibrate option for accuracy. 9) Support Level Meter allows you to measure the degree of tilt in the vertical plane and can take many forms. The measurements in each axis is locked to the screen, still more easy to measure. 10) There are various UI language menus to choose from. 11) Supports both dark and light themes.

About

Smart Protractor & Angle Meter

Features
Read full description

SmartProtractor turns your iPhone into a professional angle-measurement toolkit. Whether you're a carpenter setting bevel cuts, an architect verifying site angles, a student solving geometry problems, or a DIY enthusiast leveling shelves and frames — get accurate readings in seconds, no extra hardware required. 4 MEASUREMENT MODES TOUCH PROTRACTOR Drag two colored handles to measure any angle on screen. Switch between 180° and full 360° modes. Enable snap-to-angle for instant exact values at 5°, 10°, 15°, 30°, and 45° increments. Lock any measurement to prevent accidental movement, then export a clean annotated diagram. CAMERA OVERLAY Overlay a live protractor on your camera feed. Aim at any object — a roof truss, door frame, staircase, or mountain ridge — and read the angle in real time. Pause to freeze the frame, fine-tune the arms, and save or share the annotated photo. PHOTO MEASUREMENT Import any photo from your library. The protractor overlays the image automatically, and you can drag it anywhere across the photo to place it exactly where you need. Adjust arms independently, pan and zoom the photo, then export the composite with the angle annotation included. POLYGON TRACING Tap anywhere to place polygon vertices and trace any irregular shape. All interior angles calculate in real time. Tap the first vertex to auto-close the shape and instantly verify the angle sum — triangle = 180°, quadrilateral = 360°, and so on. Load a photo or use the live camera as background to trace real-world objects directly on screen. LEVEL & INCLINOMETER Measure device pitch and roll with the precision of a digital spirit level. Calibrate to any surface, lock the reading, and switch between pitch and roll axes on a precision dial display. WHO USES SMARTPROTRACTOR • Carpenters — bevel angles, miter cuts, and corner joint verification • Architects — field angle checks against drawings and blueprints • Tile setters — irregular corner measurements before cutting • Students — geometry homework and theorem verification • Builders & DIYers — level shelves, frames, decks, and pictures MEASUREMENT FEATURES • Degrees, radians, and slope percentage • Snap-to-angle at 5°, 10°, 15°, 30°, and 45° increments • Lock mode to freeze any reading against accidental touch • Export & Share — save to Photos or send to any app • Copy angle value to clipboard • No ads · No subscriptions · Zero data collection

Screenshots

Angle Meter PRO4 screens
Smart Protractor & Angle Meter4 screens

Verdict

The call

The clearest difference is price: Smart Protractor & Angle Meter at Free against Angle Meter PRO's $3.99. Smart Protractor & Angle Meter also leads on update cadence (every 6 weeks vs every 5 months). Angle Meter PRO's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Smart Protractor & Angle Meter is free to download; Angle Meter PRO costs $3.99 up front. Smart Protractor & Angle Meter sells 1 one-off in-app purchase. Angle Meter PRO asks for nothing beyond the download.

UpkeepUpdate frequency

Angle Meter PRO ships an update every 5 months, Smart Protractor & Angle Meter every 6 weeks. The most recent releases landed on October 11, 2026 and September 30, 2026 respectively.

Scorecard3 real differences · 7 level
Angle Meter PRO versus Smart Protractor & Angle Meter: the parameters behind the verdict, then further details
ParameterAngle Meter PROSmart Protractor & Angle Meter
Price$3.99Free — better
Rating4.4 (7 ratings) — better—
Positive reviews60.6% of reviews—
Number of ratings7 — better—
Update frequencyEvery 5 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.617.6 — better
Further details — not scored
Size3 MB7 MB
Age rating4+4+
Developernakhon phagdeechatVladislav Zhirnov

In-app purchases

None

Angle Meter PRO

No in-app purchases

1 purchases

Smart Protractor & Angle Meter

One-time1
  • Full version$2.99

Questions

Is Angle Meter PRO free?
Angle Meter PRO costs $3.99, with no in-app purchases.
Is Smart Protractor & Angle Meter free?
Smart Protractor & Angle Meter is free to download, with in-app purchases available.
Do Angle Meter PRO or Smart Protractor & Angle Meter have ads?
Neither Angle Meter PRO nor Smart Protractor & Angle Meter shows ads.
Which is updated more often, Angle Meter PRO or Smart Protractor & Angle Meter?
Angle Meter PRO ships an update every 5 months, and Smart Protractor & Angle Meter every 6 weeks. Most recently, Angle Meter PRO was updated on October 11, 2026 and Smart Protractor & Angle Meter on September 30, 2026.

Other comparisons