Comparison

One Touch Alert 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

One Touch Alert

Features
Read full description

The App is designed to connect with an external device via Bluetooth. Without a device for test the functionality is limited. This mobile application uses Bluetooth connection for engineers configure settings for external device settings, for e.g. microphone sensitivity level, speaker sound level, storing information and displaying the same using mobile application.

About

Bubble Level

This app provides precise digital measurements for leveling and angle detection, acting as a spirit level, ruler, and laser tool. It helps with various tasks like furniture assembly, hanging decor, and construction projects, offering real-time feedback and the ability to save and share measurements.

Highlights
  • Precise spirit level with 0.1 degree accuracy
  • Integrated laser measurement tool
  • Digital ruler for length measurement
  • Save, note, and export measurements
  • Customizable themes and settings
  • Offline functionality
Features
Read full description

Professional-grade spirit level, bubble level, and precision angle measurement toolkit right in your pocket. Replace bulky hardware tools with digital accuracy, camera-based laser leveling, and real-time surface telemetry. Turn your iPhone or iPad into an advanced machinist and carpenter toolkit for home improvement, construction, and DIY projects. KEY FEATURES PRECISION SPIRIT & BUBBLE LEVEL • Horizontal & Vertical Tube Levels with 0.1° high-precision readout • 360° Circular Bullseye Level for multidirectional surface leveling • Real-time X (Roll) and Y (Pitch) digital telemetry • Dual measurement modes: Angle (Degrees °) and Slope (Percent %) • Real-time RMS Stability Telemetry for vibration analysis • 100% Offline operation — no internet connection required NEW: CAMERA BUMP COMPENSATION (Pro Hardware Calibration) • Eliminates false tilt angles caused by protruding iPhone camera lenses • Automatically restores true 0.0° balance when placed flat on tables • One-tap presets for Slim/No Case (0.9°), Standard Case (1.2°), and Rugged Cases (1.6°) ACTION BUTTON & SIRI SHORTCUTS • Full Apple Action Button integration for iPhone 15 Pro, 16, and 17 series • Instant single-click hardware launch for Spirit Level, Laser, or Ruler • Hands-free voice triggers with Siri Shortcuts ("Open Bubble Level Laser") • Control Center Quick Launch support CAMERA LASER LEVEL (AR Tool) • Visual laser line projection via your camera feed • Perfect for picture frame alignment, wall mounting, and tile installation • Live angle detection with instant leveling feedback DIGITAL RULER & CALIPER • On-screen digital ruler with Metric (cm/mm) and Imperial (inch) scales • Dual precision measurement markers for exact object dimensions • Scratch-free high-contrast display MEASUREMENT MANAGEMENT & EXPORT • Save angle and dimension records with custom labels and timestamps • Export and share measurement history in CSV format • One-tap zero calibration for relative angle measurements PROFESSIONAL INDUSTRIAL DESIGN • High-contrast Neo-Brutalist Machinist interface for outdoor visibility • Tactile haptic feedback vibration upon reaching perfect balance (0.0°) • Keep-Screen-On toggle during long measurement sessions • Custom theme support IDEAL FOR: - Hanging paintings, wall decor, TVs, and mirrors - Furniture assembly, cabinet making, and shelving - Home renovation, drywall, and masonry projects - Table, appliance, and RV/camper leveling - Professional carpentry, construction, and engineering - Photography and tripod angle alignment Download now and transform your device into an indispensable, professional measurement toolkit! Note: Measurement precision relies on device internal sensors (gyroscope and accelerometer). Regular calibration is recommended for optimal accuracy. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://malevus.com/privacy-policy-for-spirit-level-app/

Screenshots

One Touch Alert4 screens
Bubble Level4 screens

Verdict

The call

The clearest difference is in-app purchases: One Touch Alert at none against Bubble Level's 5. Bubble Level's advantage is update cadence (every 2 weeks vs every 4 months). On price, ads, device support and iOS requirement 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 5 in-app purchases, starting at $3.99 per month. One Touch Alert asks for nothing beyond the download.

UpkeepUpdate frequency

One Touch Alert ships an update every 4 months, Bubble Level every 2 weeks. The most recent releases landed on September 28, 2026 and October 16, 2026 respectively.

Scorecard2 real differences · 7 level
One Touch Alert versus Bubble Level: the parameters behind the verdict, then further details
ParameterOne Touch AlertBubble Level
PriceFreeFree
Rating—4.9 (11 ratings) — better
Number of ratings—11 — better
Update frequencyEvery 4 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.017.6 — better
Further details — not scored
Size28 MB17 MB
Age rating4+4+
DeveloperUltron TechnologiesUngo Inc.

In-app purchases

None

One Touch Alert

No in-app purchases

5 purchases

Bubble Level

Subscriptions4
  • Bubble Level Premium7 Days trial$3.991 Month
  • Weekly Premium$3.997 Days
  • Bubble Level Weekly3 Days trial$4.997 Days
Show 1 more
  • Remove All Ads$19.991 Year
One-time1
  • Bubble Level Lifetime$39.99

Questions

Is One Touch Alert free?
One Touch Alert is free to download, with no in-app purchases.
Is Bubble Level free?
Bubble Level is free to download, with in-app purchases available.
Do One Touch Alert or Bubble Level have ads?
Neither One Touch Alert nor Bubble Level shows ads.
Which is updated more often, One Touch Alert or Bubble Level?
One Touch Alert ships an update every 4 months, and Bubble Level every 2 weeks. Most recently, One Touch Alert was updated on September 28, 2026 and Bubble Level on October 16, 2026.

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