Comparison

Smart Tools vs Bubble Level!

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

Head to head
About

Smart Tools

This comprehensive utility app provides 31 essential tools and gauges, leveraging your device's sensors. It includes measurement tools, a light, a magnifier, and various sensors for construction, carpentry, and everyday use.

Highlights
  • 31 carpenter, construction, and gauge tools
  • Bubble level and laser level
  • Stud finder and dB meter
  • Ruler, protractor, and magnifier
  • Speed gun and distance meter
  • Unit converter and code reader
Features
Read full description

Meet the largest iOS toolbox kit with 31 carpenter, construction and other tools and gauges like bubble level (spirit level), laser level, stud finder, dB meter, protractor (angle meter)... Use device's in-built sensors in all in one toolbox app, handy like a Swiss army knife. Carpenter and construction toolbox: Ruler; Bubble level (Spirit level); Laser level; Light: Manual torch light, strobe light, light show; Protractor (angle meter) with plumb bob; Magnifier. Gauges toolbox: dB meter with frequency spectrum; Distance and height meter; Speed gun (speed meter); Stopwatch; Metal detector (stud finder); Vibration meter; Luminosity meter; Color sensor; Cardiograph (heart rate meter); Speedometer. Other handy tool kit: Unit converter: Also includes currency converter; Code reader: QR code and bar code; Accelerometer; Night vision; Dog whistle; Metronome; Pitch tuner; Counter; Random generator; Pedometer; Body mass index; Period tracker; Translator. Free kit with advertisement, optional removal with paid upgrade.

About

Bubble Level!

Read full description

A bubble level, spirit level, or simply a spirit is easy to use, stylish & accurate. It is a tool designed to indicate whether a surface is horizontal (level) or vertical (plumb). The Bubble Level app is accurate, simple to use, and an incredibly useful tool. Hold any of the phone's four sides against an object to test it for level or plumb, or lay it down on a flat surface for a 360° level. The Bubble Level app tries to imitate the real bubble or spirit level and displays the phone’s data as a real level would. Features: - Horizontal & vertical level tool - Manual calibration & reset functions - Dark mode & light mode - Bubble level & bull's eye level 17 Languages: - English - Ukrainian - Arabic - Catalan - Dutch - Estonian - French - German - Italian - Japanese - Korean - Chinese - Polish - Portuguese - Romanian - Spanish - Turkish

Screenshots

Smart Tools4 screens
Bubble Level!4 screens

Verdict

The call

The clearest difference is update cadence: Bubble Level! at every 3 weeks against Smart Tools's every 3 months. Smart Tools's advantage is iOS requirement (11.0 vs 13.0). 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. Smart Tools sells 1 one-off in-app purchase and Bubble Level! sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Smart Tools ships an update every 3 months, Bubble Level! every 3 weeks. The most recent releases landed on September 19, 2026 and September 8, 2026 respectively.

Scorecard2 real differences · 8 level
Smart Tools versus Bubble Level!: the parameters behind the verdict, then further details
ParameterSmart ToolsBubble Level!
PriceFreeFree
Rating4.5 (314 ratings) — better
Positive reviews77.9% of reviews
Number of ratings314 — better
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better13.0
Further details — not scored
Size24 MB49 MB
Age rating4+4+
DeveloperMatjaz MaroltHubert Willy Lehmann

Bugs and requests

Smart Tools

Reported bugs

11 issues
  • App crashes on startup with advertising splash screen
  • Metronome causes app to force close
  • Night vision not working properly
  • Translator feature not functioning
  • Conversion tools not working
Show 6 more
  • Cardiograph readings inaccurate without finger on camera
  • Body fat measurement tool returns to settings
  • Mirror feature disappeared
  • Settings menu crashes on iPad
  • Some tools don't light up or display correctly
  • Currency conversion data outdated

Requested features

14 requests
  • Dark mode matching system settings
  • Calculator tool
  • Compass feature
  • Stud finder functionality
  • Temperature conversion
Show 9 more
  • Smaller volume units (teaspoons, tablespoons)
  • Speedometer in miles per hour (MPH)
  • Mirror tool restoration
  • Proximity warning with audible alarm
  • Screenshot and share functionality
  • Notes tool
  • Customizable tool order/sorting
  • Better UI redesign
  • Landscape mode support

Bubble Level!

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Smart Tools

One-time1
  • Remove advertisement$2.99
1 purchases

Bubble Level!

One-time1
  • Remove Ads$2.99

Questions

Is Smart Tools free?
Smart Tools is free to download, with in-app purchases available.
Is Bubble Level! free?
Bubble Level! is free to download, with in-app purchases available.
Do Smart Tools or Bubble Level! have ads?
Both Smart Tools and Bubble Level! show ads.
Which is updated more often, Smart Tools or Bubble Level!?
Smart Tools ships an update every 3 months, and Bubble Level! every 3 weeks. Most recently, Smart Tools was updated on September 19, 2026 and Bubble Level! on September 8, 2026.

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