SPL Meter vs Mix to Mobile
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SPL Meter
This application functions as a professional-grade sound level meter, measuring decibels (dB) with advanced DSP algorithms. It offers adjustable filters, decay rates, and ranges, and can be calibrated for accuracy. It supports both internal and external microphones for versatile sound measurement.
- A and C weighting filters
- ANSI Fast or Slow decay
- 40dB to 120dB ranges
- Adjustable calibration
- Internal/External mic support
- Universal app
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SPL Meter is a professional-grade sound level meter, also known as a decibel or dB meter, for your iPhone, iPad or iPod touch. Modeled after a traditional analog SPL meter, we have faithfully reproduced all the characteristics and qualities found in those meters, including the ballistics, ranges, filters, and decay rates. Under the hood we have advanced DSP-based algorithms that meet or exceed ANSI / IEC Type 1 standards. And starting with iOS 6, we can disable the mic filters and limiters, to get the real world performance of a hand-held SPL meter. And now, upgrade SPL Meter with iTestMic, our pro-grade test & measurement mic, made specifically for iOS devices. Using iTestMic with SPL Meter, you get a calibrated, accurate SPL Meter, that meets industry standards for Type 2 performance. See our website for more information. But don't compare us to a Radio Shack meter, ours is much more accurate! We have also included a digital LCD display, as shown in the image, to make this the best SPL meter available for iPhone or iPad. And this is something that the old analog meters never had! The screen will flip when you flip the phone over, so that you can point the iPhone mic directly at the sound source. (iPhone X does not support upside down mode) SPL Meter is a universal app -- buy once, and use on all of your iOS devices. SPL Meter is built by the same team that created the other great professional audio and acoustics apps on the store, Studio Six Digital. Built on the engine of our more expensive "SPL" app, SPL Meter's filters and decay rates meet or exceed ANSI type 1. This app is not a toy or a game. SPL Meter is the one audio app that everyone who works in audio must have on their phone! Not only have we made the best one, but we've priced it so you can't afford not to get it. *** FEATURES: FILTERS -- A and C weighting filters are provided. DECAY -- Choose ANSI Fast or Slow. RANGES -- 40dB to 120dB in 9 ranges. CALIBRATION -- Comes pre-calibrated for the typical iPhone or iPad built-in and headset mic, but you can adjust the calibration if you have a professional, calibrated meter to compare it to. Accesses our cloud-based iOS device calibration database, which we updates as new devices are released. INTERNAL / EXTERNAL MIC -- Select Internal to activate the included compensation filter, which is designed to flatten the frequency response of the built-in or headset mic. External will work with our iPhone Measurement Mic, to be released later this summer. See our website for more details. SPL Meter is bargain-priced to make it easy for anyone to check out one of our professional, accurate apps. Studio Six Digital is dedicated to making the iPhone and Touch a professional audio and acoustics test device. Check out our full line of professional-grade audio and acoustics apps: SPL, the professional digital iPhone sound level meter, SPL Graph, for recording SPL over time, RTA, a 1/3 octave real-time analyzer, FFT, for detailed acoustic analysis, ETC, the energy-time curve function, RT60, for automated octave-band decay time measurement, Speaker Pop, to test speaker polarity, and Generator, the iPhone signal generator. Also, if you are looking for more great acoustical and audio test apps, have a look at AudioTools, our premier app for audio professionals.
Mix to Mobile
Stream high-quality, low-latency audio directly from your Digital Audio Workstation (DAW) to your mobile device over WiFi. Get instant feedback on your mixes and broadcasts without needing to bounce projects.
- Real-time audio streaming from DAW
- Low latency, lossless audio quality
- Wireless WiFi connection
- Multiple stream support
- Instant feedback for mixing
- Broadcast translation
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Stream audio from your DAW to your mobile device Mix to Mobile makes it easy to listen to your mix on your mobile device. You no longer have to bounce your project and send it to your phone. You can listen to your mix in realtime, make adjustments and get instant feedback. How it works The Mix to Mobile app receives high quality, low latency, lossless audio streams directly from your DAW. A separate sender plugin is available as AudioUnit, AAX & VST3 on macOS and Windows. Use your WiFi Mix to Mobile uses your local network to send audio to your mobile device, including WiFi. You can send and receive multiple streams simultaneously. It's easy - Get going in three steps 1. Place the plugin on the track you want to listen to 2. Open the mobile app 3. Click “Start listening” on the stream you want to listen to Studio - Mixing & mastering Using Mix to Mobile allows you to make great mix decisions based on instant feedback from your mobile. And because Mix to Mobile sends high quality, lossless audio to your mobile devices so you can make decisions with great confidence. Live - Broadcast Use Mix to Mobile to know how your TV mix translates to mobile for the people at home. Sound on Digital plans to release a standalone sender application which allows you to stream any audio input device to you mobile. Other applications - Creative usage Mix to Mobile has other applications as well. Think of streaming to the audience's mobile devices, live translations or art projects.
Screenshots
Verdict
The clearest difference is price: Mix to Mobile at Free against SPL Meter's $0.99. Mix to Mobile also leads on in-app purchases (none vs 1) and update cadence (every 3 weeks vs every 3 months). SPL Meter's advantage is review sentiment (73% vs 45%) and chart position (#85 vs unranked). On ratings volume, ads and device support 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
Mix to Mobile is free to download; SPL Meter costs $0.99 up front. SPL Meter sells 1 one-off in-app purchase. Mix to Mobile asks for nothing beyond the download.
Mix to Mobile holds the better App Store score, 4.3 against 4.0. Both are backed by a comparable volume of ratings — 29 and 11 respectively. Written reviews complicate that: 73% of SPL Meter's written reviews are positive against 45% of Mix to Mobile's, so the app with the better star average is not the one people write more warmly about.
SPL Meter ships an update every 3 months, Mix to Mobile every 3 weeks. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.
| Parameter | SPL Meter | Mix to Mobile |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.0 (29 ratings) | 4.3 (11 ratings) — better |
| Positive reviews | 72.9% of reviews — better | 45.5% of reviews |
| Number of ratings | 29 — better | 11 |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | Free — better |
| Best chart rank | #85 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 36 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Andrew Smith | Owllab |
Customer experience
SPL Meter
Mix to Mobile
Bugs and requests
SPL Meter
Reported bugs
11 issues- Meter readings change completely and are not stable
- App crashes on iPhone 6s Plus with jumbled screen display
- Screen scaling issues on iPad models
- Display glitches when rotating device between portrait and landscape
- Greyed out settings after installation
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- Blurry UI and low resolution after updates
- App fails to respond or shows 999dB reading
- Incompatibility with iOS 8 and iOS 10.3.2
- Screen only fills bottom-left corner of display
- Microphone not responding with external mics
- Feedback/screeching with certain external microphones
Requested features
12 requests- Larger meter display in landscape mode
- Digital-only display option without analog meter face
- Peak hold and min/max reading indicators
- Time-based decibel graph visualization
- Linear response visual option in addition to logarithmic
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- Lighter display theme for outdoor readability
- Larger digital numbers for better visibility
- Data capture and note-tagging functionality
- Three-point calibration system
- Octave band analysis
- Automatic range selection
- Improved knob/dial controls (less touchy)
Mix to Mobile
Not enough reviews yet to summarise bugs or requests.
In-app purchases
SPL Meter
- Controls & Ad-Free$0.99
Mix to Mobile
No in-app purchases
Questions
Is SPL Meter free?
Is Mix to Mobile free?
Which has better reviews, SPL Meter or Mix to Mobile?
Do SPL Meter or Mix to Mobile have ads?
Which is updated more often, SPL Meter or Mix to Mobile?
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