Comparison

Ruzza Móvel vs Decibel Meter

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

Head to head
About

Ruzza Móvel

Features
Read full description

Se vivemos na era digital por que usar soluções do passado? Acabou as filas e as musiquinhas enjoadas. -Atendimento Digital Chega de burocracias. Resolva tudo de forma digital, de um jeito simples, rápido e eficiente, na RUZZA MÓVEL você tem cobertura nacional de graça e atendemos todos os DDD`s. -Pagamento Digital Na RUZZA MÓVEL você não precisa ir na lotérica pagar sua fatura, isso é coisa do passado! Você faz tudo pelo aplicativo, paga por PIX, Boleto, Cartão de Crédito e Débito. -Portabilidade Trás seu número para a RUZZA MÓVEL, prometemos cuidar com todo o carinho! Bônus de internet na portabilidade Faça a portabilidade e ganhe bônus de internet para aproveitar ainda mais o melhor da conexão! -Sem letras miúdas Na RUZZA MÓVEL não tem MULTA e nem FIDELIDADE.

About

Decibel Meter

Transform your device into a professional sound level meter to measure ambient noise in real-time. Analyze sound frequencies, monitor noise exposure, and export detailed reports to understand your acoustic environment.

Highlights
  • Real-time decibel measurement
  • A, C, and Z frequency weighting
  • FAST, SLOW, and IMPULSE response modes
  • Spectrum Analyzer with FFT and spectrogram
  • Noise Dosimeter for daily exposure estimates
  • Long-term tracking and history logs
  • Exportable PDF reports
Features
Read full description

Turn your iPhone into a professional sound level meter, noise meter, and decibel meter for accurate, real-time audio measurement. Decibel Meter measures ambient noise with pre-calibrated dB readings, so you always know exactly how loud your surroundings are — at home, at work, at concerts, or on the go. Protect your hearing, monitor noisy environments, and finally understand the sound around you. Whether you are checking workplace noise, improving room acoustics, monitoring environmental noise pollution, or tuning audio systems, this app provides fast, reliable sound level measurements in dBA, dBC, and dBZ. WHAT MAKES IT GREAT - Trusted accuracy: pre-calibrated for iPhone and iPad, with built-in microphone calibration tools for improved precision - Real-time measurement: decibel (dB) readings update continuously, with A, C, and Z frequency weighting (dBA, dBC, dBZ) - Response modes: FAST, SLOW, and IMPULSE with real-time average (Leq) and peak detection - Spectrum Analyzer: real-time FFT, spectrogram, and octave-band visualization for audio analysis and acoustic tuning - Noise Dosimeter: daily noise exposure estimates based on NIOSH & OSHA standards - Long-term tracking: save measurement history with timestamps and review historical logs - Export & share: export detailed PDF reports and share results instantly - Accurate frequency detection for sound analysis, audio diagnostics, and equipment tuning - Beautiful, intuitive UI with digital and analog displays TECHNICAL SPECS - Measurement range: 30–130 dBA - Response time: SLOW (500 ms), FAST (200 ms), IMPULSE (50 ms) - MIC gain offset: -50 dB to +50 dB - Real-time current, average (Leq), and max values with digital & analog displays USE CASES Noise measurement, environmental noise monitoring, home cinema calibration, room acoustics, workplace safety, and audio testing. PRIVACY All audio processing is performed locally on your device. No recordings or sound data are uploaded or shared. NOTES - An average quiet room reads about 30 dBA; the 30–130 dBA range is the standard usable range. - For professional use, custom calibration with a reference device is recommended. - This app is for reference and educational purposes only. It is not a replacement for certified professional acoustic measurement equipment. Accuracy may vary depending on device hardware and microphone quality. SUBSCRIPTION TERMS Decibel Meter is free to download with core features included. A premium subscription unlocks advanced spectrum analysis, unlimited exports, and professional reporting tools. Payment will be charged to your Apple ID account upon confirmation. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current period. You can manage or cancel subscriptions in your Apple ID settings at any time. No refunds for unused subscription periods. LEGAL Terms of Use: https://seeyastech.com/terms Privacy Policy: https://seeyastech.com/privacy Support: info@seeyastech.com

Screenshots

Ruzza Móvel4 screens
Decibel Meter4 screens

Verdict

The call

The clearest difference is in-app purchases: Ruzza Móvel at none against Decibel Meter's 4. Decibel Meter's advantage is update cadence (every 9 days vs every 3 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. Decibel Meter sells 4 in-app purchases, starting at $2.99 per 7 days. Ruzza Móvel asks for nothing beyond the download.

UpkeepUpdate frequency

Ruzza Móvel ships an update every 3 months, Decibel Meter every 9 days. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 8 level
Ruzza Móvel versus Decibel Meter: the parameters behind the verdict, then further details
ParameterRuzza MóvelDecibel Meter
PriceFreeFree
Rating—4.4 (9 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—9 — better
Update frequencyEvery 3 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size23 MB68 MB
Age rating4+4+
DeveloperINFINITI TECNOLOGIA EM COMUNICACAO LTDASEEYAS LIMITED

In-app purchases

None

Ruzza Móvel

No in-app purchases

4 purchases

Decibel Meter

Subscriptions4
  • Weekly Premium Discount3 Days trial$2.997 Days
  • Weekly Premium3 Days trial$9.997 Days
  • Monthly Premium3 Days trial$9.991 Month
Show 1 more
  • Annual Premium7 Days trial$49.991 Year

Questions

Is Ruzza Móvel free?
Ruzza Móvel is free to download, with no in-app purchases.
Is Decibel Meter free?
Decibel Meter is free to download, with in-app purchases available.
Do Ruzza Móvel or Decibel Meter have ads?
Neither Ruzza Móvel nor Decibel Meter shows ads.
Which is updated more often, Ruzza Móvel or Decibel Meter?
Ruzza Móvel ships an update every 3 months, and Decibel Meter every 9 days. Most recently, Ruzza Móvel was updated on October 30, 2026 and Decibel Meter on October 24, 2026.

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