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Best Ultrasound Detector Apps

250+ iOS apps curated and reviewed

4.5 avg rating
19 free apps
Updated November 2026

Out of 250+ ultrasound detector apps on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Ultrasound Detector Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Decibel X:dB Sound Level MeterDecibel X:dB Sound Level MeterFree4.6★ (164K)NoYesNov 2026
2Echo Scan FX Ultrasound CameraEcho Scan FX Ultrasound CameraFree4.0★ (49)YesNoOct 2026
3Detector.Detector.Free—YesYesSep 2026
4Ultrasound TouchUltrasound TouchFree—NoNoAug 2026
5Clarius Ultrasound AppClarius Ultrasound AppFree4.3★ (52)NoNoNov 2026
6RaySonic Ultrasound - FAUSIONSRaySonic Ultrasound - FAUSIONSFree—NoNoOct 2026
7Aco Apache AppAco Apache AppFree5.0★ (1)NoNoAug 2026
8Ghost Detector Paranormal ToolGhost Detector Paranormal ToolFree was $8.995.0★ (2)NoYesOct 2026

Top Picks for Ultrasound Detector

Decibel X:dB Sound Level Meter#1

Decibel X:dB Sound Level Meter by SkyPaw Co., Limited

Frequency Spectrum Analyzer
Editor's Choice
🔧 Utilities
4.6😐(164K ratings)
FreeIn-App Purchases
Decibel X:dB Sound Level Meter screenshot 1
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Decibel X:dB Sound Level Meter screenshot 3
Decibel X:dB Sound Level Meter screenshot 4
Decibel X:dB Sound Level Meter screenshot 5
Decibel X:dB Sound Level Meter screenshot 6

This tool transforms your device into a professional sound level meter, offering precise measurements of ambient noise. It features advanced calibration, frequency analysis, and data management for various applications, from personal curiosity to professional use.

What We Love

  • ⭐ Excellent app
  • 👍 Easy to use and understand
  • 🔍 Useful for various applications
  • 🎓 Helpful for hearing protection
  • 🔧 Accurate and reliable

Room to Improve

  • 💰 Expensive subscription model
  • 🔒 Misleading free trial
  • 📢 Intrusive ads
  • 🤖 Inaccurate readings compared to professional meters
  • 🤔 Confusing interface
Detector.#3

Detector. by Olga Ivanova

Hidden signals
Worth Considering
📚 Education
0.0(0 ratings)
FreeAdsIn-App Purchases
Detector. screenshot 1
Detector. screenshot 2
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This app uses your phone's sensors to scan for hidden signals, wireless activity, and environmental anomalies. It helps inspect spaces for suspicious devices and provides detailed reports for privacy and security analysis. Features include room mapping, risk assessment, and device diagnostics.

More Ultrasound Detector apps to explore

FAQ about Ultrasound Detector

What are the best ultrasound detector apps for iPhone?
Decibel X:dB Sound Level Meter tops our ultrasound detector apps ranking as of November 2026, with a 4.6-star average from 164K App Store ratings, and it's free to download.
Yes — 19 of the top ultrasound detector apps we rank are free to download, including Decibel X:dB Sound Level Meter and Echo Scan FX Ultrasound Camera.
Decibel X:dB Sound Level Meter has no ads and offers in-app purchases, according to its App Store listing as of November 2026.
We track 250+ ultrasound detector apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.