Comparison

Level Tool vs Digital Protractor & Level

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

Head to head
About

Level Tool

Transform your phone into a precise spirit level and angle finder. Measure surfaces, check angles, and calibrate for accurate readings in seconds. Enjoy an ad-free, subscription-free experience with a one-time purchase.

Highlights
  • Bubble level for horizontal and vertical measurements
  • Surface level for flat areas
  • Angle mode for precise slope readings
  • One-tap calibration for accuracy
  • Offline functionality
  • No ads or subscriptions
Read full description

Level Tool turns your iPhone into a spirit level and angle finder. Hold it against an edge or lay it on a surface, and the reading shows the tilt to a tenth of a degree. When it is level, the background behind the reading turns green and the phone taps once. Hang a frame, put up a shelf, mount a TV or set a washer on its feet by eye, and you often end up drilling a second hole. Level Tool tells you which side to raise before you drill. TWO TOOLS - Bubble: hold the phone against the top of a frame, a shelf or a TV, upright or on its long edge. It reads the angle of any edge, so it also works as an angle finder and an inclinometer. - Surface: lay the phone face up on a table, a floor or an appliance. It reads side to side and end to end, and tells you which corner to raise. MADE TO READ FROM A LADDER - The angle fills the screen in large digits. - The background behind the reading turns green when it is level, with one tap from the phone and a soft tick you can switch off. - A line under the reading says which side to raise. - Hold freezes the reading, so you can lift the phone off a rafter and read it. CALIBRATE WITH THE CASE ON Calibrate each tool in two steps on any flat table, with the case on. Lay the phone flat for Surface, or stand it on its long edge for Bubble, then turn it around on the same spot. That allows for your case and the camera bump. FOR RVS AND CAMPERS Lay the phone on the floor of an RV or camper, and Surface shows which way it leans and which corner to raise. PRO: ROOF PITCH, SLOPE AND A TARGET ANGLE Pro adds two units to the reading: roof pitch in x/12 and slope in percent. To read a roof, lay the phone flat on a rafter with Surface, or stand it on its long edge along the rafter with Bubble. Pro also sets a target, such as 4/12 or 6/12 for a roof, 2% for drainage or 45°, and the phone taps when you hit it. Bubble, Surface, degrees, Hold and calibration all work without Pro. If you bought Pro in an earlier version, it carries over. Level Tool shows no ads and needs no account. The level works without an internet connection. It does not measure length or distance. Check the next frame you hang before you drill. Terms of Use: https://cmlapps.github.io/leveltool/terms.html Privacy Policy: https://cmlapps.github.io/leveltool/privacy.html

About

Digital Protractor & Level

Read full description

A protractor, bubble level, tape measure, ruler and room-planning toolkit in your pocket. Digital Protractor & Level brings 15 tools together with large readings, familiar instruments and a quick tool selector. Choose any tool as your default at launch. Now in English, Spanish, French and German. ANGLES & LEVELS • Protractor: read angles with a realistic dial and clear numerical display. • Level: a traditional bubble vial with degrees, percent slope and rise per 12. • 4 Corners: a bullseye surface level for tabletops and other flat surfaces. • Photo Angle: choose a photo and drag the corner and endpoints to measure an angle. • Camera Level: use on-screen alignment guides over the live camera. • Compass & Tilt: check direction and inclination. MEASURE & PLAN • Tape Measure: place a start and end point in augmented reality, with a bold measurement line and visible point markers. Chain segments, capture dimensions and save measurements with Expanded Toolkit. • Ruler: a full-height, calibrated on-screen ruler in metric or imperial units, with a drag handle that stays clear of the controls. • Feet & Inches: calculate fractions, convert metric lengths, add or subtract dimensions, multiply, divide and find equal spacing. • Height: mark a base and top to estimate vertical height. • Area: outline a flat surface to estimate its area. • Floor Plan: enter wall lengths or mark floor corners, then save and share a plan. • Room Layout: scan a room with LiDAR on a supported iPhone. Export USDZ, OBJ, SVG and JSON files to a computer for compatible 3D, drawing and rendering software. Exports contain simplified geometry, not a photographic scan. • TV Sizer: preview a selected screen size on a wall. • Magnetic Field: view nearby magnetic field strength. PROJECTS & QUICK ACCESS Group saved measurements, notes and selected photos into projects and share PDF reports with Expanded Toolkit. Pin favorite tools for quick access. Level opens by default on a new installation; choose your own startup tool in Settings or Tools. Owners and subscribers open their entitled default ready to use. Portrait and landscape layouts keep controls within reach. The app follows your iPhone's language in English, Spanish, French and German, including readings, spoken angles and purchase details. FREE & PAID ACCESS Use the basic Protractor, Level, Ruler and single-line Tape Measure free. Opening a tool preview is free; paid tools and actions show the available purchase options when you use them. Expanded Toolkit unlocks all paid features. Choose $1.99 per month, $4.99 every three months, or a $14.99 one-time lifetime purchase in the U.S. Prices vary by country and are shown before purchase. Monthly and three-month subscriptions renew automatically unless canceled at least 24 hours before the current period ends. Manage or cancel subscriptions in your App Store account settings. Lifetime does not renew. Restore Purchases is available in the app. Existing Original Tools buyers keep the tools and features included in their original purchase. Expanded Toolkit is an optional upgrade for the additional tools. DEVICE & MEASUREMENT NOTES AR measurements are estimates and depend on lighting, surfaces and tracking. Room scanning requires a LiDAR-equipped iPhone. Camera Level displays virtual guides; it does not project a laser. Magnetic Field is not a dependable wire or stud detector. Photo angles can be affected by perspective. Check critical measurements with appropriate physical tools. No account and no in-app ads. Photos, scans and saved measurements stay on your device unless you choose to share them. Camera access supports camera and AR tools; optional location access supports true north. Purchases and restores require internet access. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Level Tool4 screens
Digital Protractor & Level4 screens

Verdict

The call

The clearest difference is update cadence: Digital Protractor & Level at every 9 days against Level Tool's every 4 months. On price, ads, in-app purchases and device support 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

Both are free to download. Level Tool sells 2 in-app purchases, starting at $4.99 per 7 days and Digital Protractor & Level sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Level Tool ships an update every 4 months, Digital Protractor & Level every 9 days. The most recent releases landed on October 31, 2026 and October 24, 2026 respectively.

Scorecard1 real difference · 8 level
Level Tool versus Digital Protractor & Level: the parameters behind the verdict, then further details
ParameterLevel ToolDigital Protractor & Level
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 4 monthsEvery 9 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationPaid—
DevicesiPhoneiPhone
Requires iOS17.017.0
Further details — not scored
Size10 MB3 MB
Age rating4+4+
DeveloperCloud Motion Lab LLCRobert Carpenter

In-app purchases

2 purchases

Level Tool

Subscriptions1
  • Level Tool Pro Weekly3 Days trial$4.997 Days
One-time1
  • Level Tool Pro$9.99
1 purchases

Digital Protractor & Level

One-time1
  • Full Version$1.99

Questions

Is Level Tool free?
Level Tool is free to download, with in-app purchases available.
Is Digital Protractor & Level free?
Digital Protractor & Level is free to download, with in-app purchases available.
Do Level Tool or Digital Protractor & Level have ads?
Neither Level Tool nor Digital Protractor & Level shows ads.
Which is updated more often, Level Tool or Digital Protractor & Level?
Level Tool ships an update every 4 months, and Digital Protractor & Level every 9 days. Most recently, Level Tool was updated on October 31, 2026 and Digital Protractor & Level on October 24, 2026.

Other comparisons