Comparison

Bubble level Align inclination vs Plumb

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

Head to head
About

Bubble level Align inclination

This tool helps you quickly and accurately level objects and surfaces. It offers precise tilt readings, vertical and horizontal orientation modes, and configurable sound notifications. It's free, functional, and works without an internet connection.

Highlights
  • Accurate tilt readings
  • Vertical and horizontal modes
  • Bull's Eye level meter
  • Show tilt angle
  • Configurable sound notifications
  • Works offline
Features
Read full description

Ideal for DIY enthusiasts and any user who needs to level objects or surfaces quickly and efficiently. And best of all, it's totally free! Featured Features: Accurate and Fast Measurement: Get accurate tilt readings in seconds. Vertical and Horizontal Orientation: Easily switch between measurement modes to suit your needs. It has a Bull's Eye level meter, which is used to level a surface. Show Tilt Angle: View the exact angle to ensure perfect leveling. Configurable Sound Notifications: Receive customizable audible alerts for added convenience. Easy to Use and Fully Functional: Intuitive and direct, ideal for users of all levels. No Internet Required: Use the application anytime, anywhere without the need for a connection. Why choose Bubble Level? Free and No Subscriptions: Enjoy all the features without additional charges or intrusive ads. Without Internet Access: Perfect to use in any situation, without worrying about the connection. Download Bubble Level today and transform your phone into an accurate and reliable measurement tool. Don't miss the opportunity to make your projects easier and more accurate! A Bubble level or simply a level is an instrument designed to indicate whether a surface is horizontal (level) or vertical (plumb line). The bubble level application also has a Bull's Eye level meter, which is used to level a surface (While the level tubular only does it in the direction of the tube)

About

Plumb

This tool simulates a physical spirit level with realistic physics and fluid optics. It offers multiple display modes for angles and surfaces, with customizable feedback for precise measurements. Features include calibration, night mode, and various themes for different lighting conditions.

Highlights
  • Realistic bubble level physics
  • Surface bullseye level
  • Customizable angle measurement
  • Multiple display modes
  • Auto-orientation detection
  • Hold reading function
  • Visual, audio, and haptic feedback
Read full description

Plumb is a precision bubble level that looks and feels like the real thing — machined bezel, genuine spring-damper physics, and a vial with real fluid optics. Check level, plumb, any angle, or a whole surface at once. No ads. No account. No tracking. The bubble moves with genuine spring-damper physics. The bezel looks like machined rubber. The vial renders with real fluid optics. When you hit level, the screen flashes, a tone fires, and the phone vibrates — all at once, so you can feel it without looking. LEVEL TAB The main vial reads roll in portrait or landscape. Lock orientation from the toolbar — portrait, landscape left, landscape right, or auto. Lock a reading to free up your hands. Calibrate to any known flat surface with one tap. SURFACE TAB A bullseye level checks both axes simultaneously. Perfect for countertops, appliances, equipment, and anything that needs to be flat in every direction at once. ANGLE TAB Dial in any target angle — 45°, 22.5°, a custom pitch, or a grade percentage — and get live feedback as you approach it. Great for trim work, ramps, crown molding, roofing, and drainage slopes. SIX DISPLAY MODES Choose how angles are shown — degrees, percentage, mm/m, pitch (X.X:12), or in/ft. Each tab has its own independent display mode. Tap any readout to cycle through options. WORKS EVERY WAY YOU HOLD IT Portrait, landscape left, landscape right, face-up, face-down — Plumb reads correctly in every orientation automatically. No mode to switch, no setup required. HOLD Freeze any reading with one tap, one volume button press, or the Action button. Press again to release. A haptic confirms when hold is activated or released. FEEDBACK THAT KEEPS UP WITH YOU Tone — pitch rises as you approach level, fires a clean confirm when you hit it Flash — the camera flash pulses on level, useful in dark spaces Haptic — a firm tap through the phone the moment you're on target NIGHT MODE A dedicated all-black theme with deep red vial and glow ring. Designed for attics, crawl spaces, and low-light conditions where a bright yellow screen is a liability. SIX THEMES Yellow, Red, Black, Sky Blue, Orange, and Night mode. CALIBRATION Per-orientation calibration profiles. Calibrate portrait, landscape left, landscape right, and flat independently. Reset any profile individually or all at once. NO ADS. NO TRACKING. Plumb does one thing and does it right. Nothing phones home. Nothing asks for your email. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://nationaltoolworks.com/apps/plumb/privacy

Screenshots

Bubble level Align inclination3 screens
Plumb4 screens

Verdict

The call

The clearest difference is in-app purchases: Bubble level Align inclination at none against Plumb's 1. Bubble level Align inclination also leads on device support (3 vs 1) and iOS requirement (12.0 vs 16.0). Plumb's advantage is rating (4.6 vs 4.3). On price, ratings volume, update cadence and ads 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. Plumb sells 1 in-app purchase, starting at $9.99 per year. Bubble level Align inclination asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Plumb holds the better App Store score, 4.6 against 4.3. Both are backed by a comparable volume of ratings — 7 and 9 respectively.

UpkeepUpdate frequency

Bubble level Align inclination ships an update monthly, Plumb every 3 weeks. Both last shipped on October 24, 2026.

Scorecard4 real differences · 6 level
Bubble level Align inclination versus Plumb: the parameters behind the verdict, then further details
ParameterBubble level Align inclinationPlumb
PriceFreeFree
Rating4.3 (7 ratings)4.6 (9 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings79 — better
Update frequencyMonthlyEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better16.0
Further details — not scored
Size34 MB2 MB
Age rating4+4+
DeveloperMarcos CeresoliNational Tool Works LLC

Customer experience

Bubble level Align inclination

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

Plumb

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Bubble level Align inclination

No in-app purchases

1 purchases

Plumb

Subscriptions1
  • Plumb Pro14 Days trial$9.991 Year

Questions

Is Bubble level Align inclination free?
Bubble level Align inclination is free to download, with no in-app purchases.
Is Plumb free?
Plumb is free to download, with in-app purchases available.
Which has better reviews, Bubble level Align inclination or Plumb?
Plumb is rated higher. Bubble level Align inclination averages 4.3 out of 5 from 7 ratings, while Plumb averages 4.6 from 9 ratings.
Do Bubble level Align inclination or Plumb have ads?
Neither Bubble level Align inclination nor Plumb shows ads.
Which is updated more often, Bubble level Align inclination or Plumb?
Bubble level Align inclination ships an update monthly, and Plumb every 3 weeks. Most recently, Bubble level Align inclination was updated on October 24, 2026 and Plumb on October 24, 2026.

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