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 utility app provides accurate surface measurements using your device's sensors. It offers a virtual level indicator for easy flatness assessment, making it ideal for professionals and DIYers alike. Get precise readings without traditional tools.

Highlights
  • Accurate surface readings
  • Virtual level indicator
  • Intuitive interface
  • Real-time measurements
  • Gyroscope and accelerometer utilization
Features
Read full description

Level Tool app is designed to provide you with accurate readings of any surface by utilizing your device's built-in gyroscope and accelerometer. With Level Tool, you no longer need to rely on traditional bubble levels or bulky measuring tools. The app displays a virtual level indicator on your screen, and all you need to do is place your device on the surface you want to measure. The indicator will show you how flat or uneven the surface is by giving you real-time measurements. The Level Tool app is incredibly easy to use, and its intuitive interface ensures that you get accurate readings every time. Whether you're a professional builder, DIY enthusiast, or just need to measure the flatness of a surface for any reason, this app is an essential tool for your toolkit. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula

Screenshots

Bubble Level2 screens
Level Tool4 screens

Verdict

The call

The clearest difference is rating: Bubble Level at 4.6 against Level Tool's 4.0. Bubble Level also leads on ratings volume (3.1K vs 34). Level Tool's advantage is update cadence (monthly vs every 10 months) and iOS requirement (13.0 vs 17.0). On price, review sentiment, ads and in-app purchases 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 5 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Bubble Level holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: Bubble Level has 3.1K ratings behind it against 34, so its average is the more settled of the two. Written reviews complicate that: 29% of Bubble Level's written reviews are positive against 36% of Level Tool's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Bubble Level ships an update every 10 months, Level Tool monthly. Both last shipped on October 20, 2026.

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) — better4.0 (34 ratings)
Positive reviews29.4% of reviews36.4% of reviews — better
Number of ratings3.1K — better34
Update frequencyEvery 10 monthsMonthly — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size20 MB26 MB
Age rating12+4+
DeveloperNetviking ABAndrei Nemtsou

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 ratings33 ratings
Positive78.8%
Neutral9.1%
Negative12.1%
Written reviews22 reviews
Positive36.4%
Neutral0.0%
Negative63.6%

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
5 purchases

Level Tool

Subscriptions5
  • Premium Weekly$3.997 Days
  • Welcome One-Time Offer$4.991 Month
  • Premium Monthly$7.991 Month
Show 2 more
  • Premium Annual$9.991 Year
  • Premium Annual$19.991 Year

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?
Bubble Level is rated higher. Bubble Level averages 4.6 out of 5 from 3.1K ratings, while Level Tool averages 4.0 from 34 ratings.
Do Bubble Level or Level Tool have ads?
Both Bubble Level and Level Tool show ads.
Which is updated more often, Bubble Level or Level Tool?
Bubble Level ships an update every 10 months, and Level Tool monthly. Most recently, Bubble Level was updated on October 20, 2026 and Level Tool on October 20, 2026.

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