Comparison

AudioToolsMax vs iTag Installer

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

Head to head
About

AudioToolsMax

This comprehensive audio testing application provides a suite of professional measurement tools for acoustic analysis. It includes advanced features like SPL metering, real-time analysis, FFT, and impulse response, all unlocked and ready for use.

Highlights
  • SPL Meter
  • Real Time Analyzer (RTA)
  • FFT Analysis
  • Speaker Polarity Checker
  • Delay Finder
  • Audio Oscilloscope
  • Audio Calculators
Features
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AudioToolsMax is the complete professional audio test & measurement app with every tool completely unlocked and ready to use. Educational discounts are available under the Apple Educational Discount program. AudioToolsMax includes all of the additional optional modules, like SoundSource, SPL Graph, SPL Traffic Light, LARSA, Transfer Function, STIPA, Impulse Response, and more. It's the full package. We test every iOS device and calibrate the microphone level and frequency response for the best results. We have the ability to turn off the Apple low frequency filters, and on many devices we can measure up to 120 dB SPL. Add iTestMic, iPrecisionMic, or iAudioInterface2 for a complete professional audio and acoustic test and measurement platform. Actual reviews: “...AudioTools is a “how did I ever live without it” app”. “I think this application is the best I EVER purchased.” “I have used many thousands of dollars of complicated test equipment that doesn’t measure up to this app suite.” ***** Included in the app price ***** * SPL Meter A faithful reproduction of a classic analog SPL meter. Includes A and C weighting, and Fast and Slow ANSI decay modes. All filters meet or exceed ANSI type 1. * RTA A 1/3 and octave band Real Time Analyzer. Includes touch-GUI range control, a cursor, max/min bars, and noise curve overlays. * FFT Detailed acoustic analysis, up to 32876 points. View full detail or smooth to 1/24, 1/6, 1/3 or octave. Includes cursor, scalable graphics, and peak tracking. * Polarity Speaker polarity checker. Route the test signal to a speaker, and read the polarity of the speaker on the screen. * Delay Finder Measures the time it takes for a pulse to return from a speaker. * Generator Generates sine waves, square waves, white and pink noise. * Line Level Tests A line level measurement function and frequency counter. * Audio Scope A dual-channel audio oscilloscope that includes auto-triggering, variable gain and sweep rate, and storage of scope images. * Recorder A mono/stereo audio recorder with WAV and compressed formats and 8k-48k sample rate. Transfer files via WIFI. * File transfer of results via wifi to PC / Mac. * Audio Calculators * Smaart® Tools - Single channel module. The power of Smaart® on a mobile platform. Includes RTA graphs to 1/48th octave and Spectrograph. Split-screen on iPad. * Transfer Function -- Requires 2-channel interface. Two-channel FFT-based measurement. Allows you to analyze sound system performance with music or pink noise as the signal source. * ETC Energy Time Curve. Plot decay of an impulse over time, and compute RT60 time. Internal or External trigger. * Impulse Response Record and analyze an impulse or sine sweep, compute octave and 1/3 octave ETC, T30, C50, C80, CT, Definition. * LARSA Fast and accurate sine-sweep measurement of loudspeakers and rooms. * SPL Pro Digital SPL meter with ANSI Slow, Fast, Peak, and Impulse mode, along with LEQ. Includes A and C weighting, and all 10 octave band filters. * SPL Graph Plot second-by-second SPL level for up to 24 hours, and optionally record the audio. Also, add the optional Octave Band Logging upgrade to elevate this tool to rival any professional logging SPL Meter. * SPL Traffic Light Monitor live sound levels SPL and Leq and see status in a simple green-yellow-red display. * STIPA Speech Intelligibility Meets the current NFPA code standards for testing evac systems and schools. * Speaker Distortion Measure THD+n of any driver. * THD+n (requires iAudioInterface) * Impedance Meter and Plot (requires iAudioInterface) * Phase Meter * Amplitude Sweep

About

iTag Installer

Features
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iTag Installer is the work app for workshops and installers who fit Author iTag GPS trackers. INSTALL • Scan the tracker's QR code or type its IMEI • Create the car by scanning the VIN. An OBD tracker fills the VIN by itself • Mark where the tracker sits on top and side diagrams, add a photo and a note CHECK BEFORE YOU LEAVE • Signal, GPS fix, SIM and battery update by themselves • Car faults for OBD dongles • Engine block test: the server unblocks after 30 seconds • Tracker presets, command log with the tracker's reply, SIM status HAND OVER • The owner scans a QR code or gets a link by email • The trackers move to the owner's iTag account in one tap • An installation report in PDF with the car, trackers, check and photos TEAM • Invite installers with a link and approve them • See who fitted what • Distributors see their workshops OTHER MAKES • Add the customer's own tracker of another make: we show the SMS that connect it PRIVACY Installers never see where the car is. Only that the tracker sends a valid position. You need an invitation from your workshop or an Author iTag company account. Terms of use: https://author-tag.com/terms-and-conditions.html

Screenshots

AudioToolsMax2 screens
iTag Installer4 screens

Verdict

The call

The clearest difference is price: iTag Installer at Free against AudioToolsMax's $399.99. iTag Installer also leads on update cadence (every 6 weeks vs every 3 months). AudioToolsMax's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On ads and in-app purchases 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

iTag Installer is free to download; AudioToolsMax costs $399.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

AudioToolsMax ships an update every 3 months, iTag Installer every 6 weeks. The most recent releases landed on November 2, 2026 and November 12, 2026 respectively.

Scorecard4 real differences · 5 level
AudioToolsMax versus iTag Installer: the parameters behind the verdict, then further details
ParameterAudioToolsMaxiTag Installer
Price$399.99Free — better
Rating4.9 (8 ratings) — better—
Number of ratings8 — better—
Update frequencyEvery 3 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better17.0
Further details — not scored
Size95 MB27 MB
Age rating4+4+
DeveloperAndrew SmithAUTHOR-ALARM d.o.o.

In-app purchases

None

AudioToolsMax

No in-app purchases

None

iTag Installer

No in-app purchases

Questions

Is AudioToolsMax free?
AudioToolsMax costs $399.99, with no in-app purchases.
Is iTag Installer free?
iTag Installer is free to download, with no in-app purchases.
Do AudioToolsMax or iTag Installer have ads?
Neither AudioToolsMax nor iTag Installer shows ads.
Which is updated more often, AudioToolsMax or iTag Installer?
AudioToolsMax ships an update every 3 months, and iTag Installer every 6 weeks. Most recently, AudioToolsMax was updated on November 2, 2026 and iTag Installer on November 12, 2026.

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