Comparison

Bubble Level vs Level Tool

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

Head to head
About

Bubble Level

This utility app functions as a precise spirit level for your iOS devices. It's ideal for tasks like aligning picture frames, measuring angles, and checking the levelness of various surfaces. The app offers calibration and accurate readings to a tenth of a degree.

Highlights
  • Measure surface level
  • Calibrate with one click
  • Accurate to 0.1 degree
  • Retina display support
  • Picture frame alignment
  • Angle and slope measurement
Features
Read full description

Bubble Level is an accurate and simple to use spirit level for your iPhone, iPad and iPod touch. It's great for aligning picture frames or for angle measurements. Features: ◉ Measure the level of any surface. ◉ It can be calibrated with the click of a button and the calibration is saved automatically. ◉ It's accurate to one tenth of a degree. ◉ Full Retina support. This tool can be used for: ◉ Picture frame alignment ◉ Measuring angles and slopes ◉ Checking the surface level of tables, shelves or any other object ◉ Measuring the inclination of a ship, aircraft or car ◉ Roof pitch calculation ▶ Calibration instructions: - To calibrate the level, hold the device upright against a reference surface ( landscape mode with the button to the left ) and press the red Calibrate button. Download this app today!

About

Level Tool

This app provides precise tools for measuring angles and ensuring surfaces are level. It offers simple and advanced modes for various tasks, from hanging pictures to checking countertops. Enjoy a fast, reliable, and private experience with no ads or data collection.

Highlights
  • Edge Level for precise alignment
  • Surface Level for balanced surfaces
  • Simple Mode for everyday use
  • Advanced Mode with measurement freezing
  • Calibration for maximum accuracy
  • Adjustable angle reading precision
Read full description

Whether you’re hanging pictures, adjusting shelves, or checking if a surface is flat, Levelr gives you simple and accurate tools to make sure they are level. Level with Confidence: • Edge Level - Align shelves, hang pictures, and level other edges with precision. • Surface Level - Place your device flat to ensure tables, countertops, and other surfaces are perfectly balanced. Choose Your Mode: • Simple Mode - Quick and reliable for everyday use. • Advanced Mode - Unlock extra control with the ability to freeze measurements, calibrate for maximum accuracy, modify angle reading precision, and more! Simple, Fast, and Reliable: Levelr is built for speed and privacy; no ads, no accounts, and no data collection. Download Levelr today and take the guesswork out of leveling!

Screenshots

Bubble Level2 screens
Level Tool3 screens

Verdict

The call

The clearest difference is ads: Level Tool at none against Bubble Level's shown. Level Tool also leads on rating (5.0 vs 4.6) and update cadence (every 2 months vs every 10 months). Bubble Level's advantage is ratings volume (3.1K vs 1). On price, in-app purchases, monetization model 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. Bubble Level sells 1 one-off in-app purchase and Level Tool sells 2 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Level Tool holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Bubble Level has 3.1K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Bubble Level ships an update every 10 months, Level Tool every 2 months. The most recent releases landed on October 20, 2026 and October 11, 2026 respectively.

Scorecard4 real differences · 6 level
Bubble Level versus Level Tool: the parameters behind the verdict, then further details
ParameterBubble LevelLevel Tool
PriceFreeFree
Rating4.6 (3.1K ratings)5.0 (1 ratings) — better
Positive reviews29.4% of reviews—
Number of ratings3.1K — better1
Update frequencyEvery 10 monthsEvery 2 months — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better18.0
Further details — not scored
Size20 MB4 MB
Age rating12+4+
DeveloperNetviking ABJustin Kuhlman

Customer experience

Bubble Level

All ratings3,062 ratings
Positive91.2%
Neutral3.6%
Negative5.2%
Written reviews201 reviews
Positive29.4%
Neutral1.5%
Negative69.2%

Level Tool

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Bubble Level

Reported bugs

3 issues
  • Ads crash the app
  • Inability to exit the app due to ads
  • Calibration button doesn't work as expected

Requested features

2 requests
  • Percent slope display option
  • Ability to rotate bubble to vertical position

Level Tool

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Bubble Level

One-time1
  • Pro Upgrade$4.99
2 purchases

Level Tool

Subscriptions1
  • Weekly Plan3 Days trial$1.997 Days
One-time1
  • Lifetime Plan$9.99

Questions

Is Bubble Level free?
Bubble Level is free to download, with in-app purchases available.
Is Level Tool free?
Level Tool is free to download, with in-app purchases available.
Which has better reviews, Bubble Level or Level Tool?
Level Tool is rated higher. Bubble Level averages 4.6 out of 5 from 3.1K ratings, while Level Tool averages 5.0 from 1 ratings.
Do Bubble Level or Level Tool have ads?
Bubble Level shows ads; Level Tool does not.
Which is updated more often, Bubble Level or Level Tool?
Bubble Level ships an update every 10 months, and Level Tool every 2 months. Most recently, Bubble Level was updated on October 20, 2026 and Level Tool on October 11, 2026.

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