Sound Meter & Level Tools
Spirit Level, Stud Finder, SPL
Free
Turn your iPhone into a complete toolkit with 15+ professional tools — all free, no ads, no subscriptions.
PRACTICAL TOOLS
• Spirit Level — 2D bubble level for hanging pictures, checking surfaces, and leveling furniture
• Metal Detector — find studs in walls, locate pipes, and detect metallic objects with haptic feedback
• Decibel Meter — measure sound levels (dB) with real-time display and OSHA safety warnings
• Vibration Analyzer — diagnose equipment issues and detect vibration patterns
• G-Force Meter — measure vehicle acceleration and impacts
COMPASS & NAVIGATION
• Digital compass with magnetic heading and cardinal directions
• GPS coordinates (latitude, longitude, elevation)
• Real-time altitude calculator using barometer + GPS
• Tilt-compensated orientation for accurate readings
SENSOR DASHBOARD
Monitor 10+ phone sensors in real-time:
Accelerometer • Gyroscope • Magnetometer • Barometer • GPS • Proximity • Light • Battery • Sound • Pitch
FLASHLIGHT & LIGHTING
• LED flashlight with instant toggle
• Strobe light (1–20 Hz) for parties and events
• SOS morse code signal for emergencies
• Red light mode to preserve night vision
• Screen light with customizable colors
• Auto-off timer
CONCERT MODE
Stand out at concerts, festivals, and live events:
• Scrolling text messages with emoji support
• 10+ templates (MARRY ME, HAPPY BIRTHDAY, I LOVE MUSIC)
• Beat-sync strobe — flashlight pulses to music rhythm
• Color effects and animations
• Share to TikTok, Instagram, and Snapchat
AUDIO ANALYSIS
• Beat detection for music-reactive lighting
• Pitch detection — identify musical notes
• Sound frequency analysis with FFT
WHO IS THIS FOR?
• Home improvement — hang pictures straight, find studs, check surfaces
• Construction & DIY — level measurements, metal detection, vibration
• Outdoor & hiking — compass, altitude, GPS coordinates
• Concerts & festivals — lighting effects, scrolling text, strobe
• Students — physics demonstrations, sensor exploration
• Sound engineers — decibel monitoring, pitch detection
WHY THIS APP?
• 100% FREE — every tool included, no paywalls
• Works OFFLINE — no internet needed for most tools
• LIGHTWEIGHT — under 35 MB, low battery usage
• PRIVATE — all sensor data stays on your device
• ONE APP replaces a dozen single-purpose tools
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
New: The compass shows an "Open settings" button when location access is blocked.
Improved: The compass needle moves as smoothly as in version 1.1.7 again.
Improved: Compass calibration now tells you when you did not turn the phone enough.
Fixed: Strobe and SOS now stop when you switch flashlight mode.
Fixed: Tapping "Enable microphone" twice no longer keeps the microphone on.
The developer, Anthony Tan, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Anthony Tan
- Size
- 27.9 MB
- Category
- Utilities
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © 2025 AniniTools