Decibel X vs SubArrayPro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Decibel X
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.
- Pre-calibrated sound pressure level (SPL) measurements
- Frequency weighting filters (dBA, dBC, ITU-R 468)
- Apple Watch and Health App integration
- History data management with export options
- Dosimeter with NIOSH, OSHA standards
- FFT and BAR graphs for real-time frequency analysis
- InstaDecibel for sharing dB reports on photos
Read full descriptionHide full description
"Decibel X" is one of very few noise meter apps on the market that has highly reliable, pre-calibrated measurements and supports dBA, dBC. It turns your iOS device into a professional sound level meter, precisely measures the sound pressure level (SPL) all around you. This extremely useful and beautiful tool will not only be a great tool for many uses but also bring you a lot of fun. Have you wondered how quiet is your room or how loud is a rock concert or sport event? "Decibel X" will help you answer all of those. WHAT MAKE IT GREAT AND STAND OUT FROM OTHER APPS: - Trusted accuracy: the app is tested and pre calibrated for all Apple devices. The precision is matching with real SPL devices - Apple Watch support: see noise level right from your wrist - Health App integration: export noise levels directly into Health app - Frequency weighting filters: ITU-R 468, A, B, C, Z - Powerful, smart history data management: + Recording data can be saved into a list of history records for future access and analysis + Each record can be exported as hi-res PNG graph or CSV text via sharing services + iCloud support which synchronize all history records across your Apple devices + Fullscreen mode to give overview the whole history of an record - Dosimeter with NIOSH, OSHA standards - Powerful calibration: Linear, Octave 1/1, 1/3, Load/save profile - FFT and BAR graphs to display real time FFT. Those are very useful for frequency analysis and musical tests. Real time predominant frequency is also displayed. - InstaDecibel to capture your dB report overlaid on photos and easily shared via popular social networks (Facebook, Instagram, Messages, etc.). - Support Live Activity, Dynamic Island - Support both Portrait and Landscape layouts - Beautiful, intuitive and carefully crafted UI design. Themes: LIGHT, DARK and CLASSIC OTHER GREAT FEATURES: - Standard time weightings (Response Time): SLOW (500 milliseconds), FAST (200 milliseconds) AND IMPULSE (50 milliseconds) - MIC Gain Offset from -50 dB to 50 dB - Standard measurement range from 30 dBA up to 130 dBA - HISTO graph for plotted history of the recorded values - WAVE graph with 2 display modes: Rolling & Buffer - SPECTROGRAPH - Real time scale level chart - Display Current, Average/Leq, and Max values with both nice and clear digital and analog layouts - Quick reference text to help you compare with real-life examples NOTES: - Please do not expect a quiet room reading will be 0 dBA. The range 30-130 dBA is the standard usable range and an average quiet room will be about 30 dBA. - Although all devices are pre-calibrated, custom calibration is suggested for serious purposes requiring higher precision and accuracy. You will need a real external device or calibrated sound meter as a reference, then adjust the trimming calibration until the reading matches with the reference. * Privacy Policy: http://www.skypaw.com/decibelx/privacy_policy.html * EULA: http://www.skypaw.com/decibelx/terms.html
SubArrayPro
Read full descriptionHide full description
O SubArray Pro é uma ferramenta profissional para cálculo e montagem de arranjos de subwoofer em sistemas de sonorização. Desenvolvido para engenheiros de áudio, técnicos de PA e profissionais de eventos, o aplicativo permite calcular com precisão espaçamento, atraso e configurações ideais para diferentes tipos de arranjos. Principais recursos: • Cálculos automáticos baseados na frequência e temperatura • Diagramas claros para montagem dos sistemas • Suporte a diversos tipos de arranjos (Straight, End Fire, Cardioide, Gradient, R-45, R-90, entre outros) • Interface simples e rápida para uso em campo • Processamento totalmente offline (sem necessidade de internet) O SubArray Pro foi criado para agilizar decisões técnicas e garantir resultados consistentes em sistemas de som profissionais.
Screenshots
Verdict
The clearest difference is in-app purchases: SubArrayPro at none against Decibel X's 5. Decibel X's advantage is chart position (#204 vs unranked). 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
Both are free to download. Decibel X sells 5 in-app purchases, starting at $1.99 per 7 days. SubArrayPro asks for nothing beyond the download.
| Parameter | Decibel X | SubArrayPro |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (164K ratings) — better | — |
| Positive reviews | 66.3% of reviews | — |
| Number of ratings | 164K — better | — |
| Update frequency | Every 3 months | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Best chart rank | #204 — better | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 17.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 90 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | SkyPaw Co., Limited | Rafael Lins |
Bugs and requests
Decibel X
Reported bugs
3 issues- App crashes when deleting recordings
- Microphone issues on certain devices
- Saved files not accessible after updates
Requested features
5 requests- Add GPS coordinates to recordings
- Improve reporting and data export
- Provide more weighting options
- Extend frequency range
- Allow music playback while using the app
SubArrayPro
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Decibel X
- Weekly Membership$1.997 Days
- Monthly Membership$5.991 Month
- Annual Membership3 Days trial$49.991 Year
- ITU-R 468, A, B, C Weightings$1.99
- Data Export$2.99
SubArrayPro
No in-app purchases









