AudioCalc vs ProPi System Analyzer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AudioCalc
This tool provides audio-specific conversion formulas for HiFi enthusiasts, home theater buffs, and audio professionals. It includes converters for frequency, band, delay, volume, and room modes, aiding in loudspeaker positioning, EQ setup, and room acoustics. Supports both imperial and metric units.
- Frequency, period, and wavelength converter
- Parametric EQ band setup tool
- Speaker distance and delay calculator
- Amplifier power calculation
- Room mode response computation
- Imperial and metric unit support
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HiFi enthousiasts, Home Theater buffs and audio professionals alike make sure you always have those handy formulas with you. This tool offers you a collection of audio targeted conversion tools. The frequency, period and wavelength converter comes in quite handy for positioning loudspeakers. The band tool helps you setup a parametric EQ. The delay part gives you an insight when setting speaker distances and delays. The volume tool helps you determine the amplifier power required for a given set of speakers. The room modal response tool allows you to compute the room modes present in a room. This is crucial when placing a subwoofer provide correct bass response. It can also be used when designing a room to avoid dimensions that would lead to a poor modal response. AudioCalc works in both imperial and metric units. Simply swipe down to reveal the unit selection view. If you liked this tool, be sure to also check VideoCalc, the companion tool that addresses your video needs.
ProPi System Analyzer
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ProPi System Analyzer is a professional audio measurement and system alignment tool designed for sound engineers, technicians, and live sound professionals. ProPi helps you analyze and optimize sound systems directly on iPhone with real-time measurement tools for system tuning and acoustic analysis. Key features include: • RTA and spectrum analysis • Phase and magnitude measurement • Impulse response analysis • Group delay measurement • SPL monitoring • Delay and time alignment tools • Sweep and pink-noise measurement • Subwoofer system analysis and alignment • Subwoofer array visualization • Crossover and system tuning tools • Professional audio measurement displays ProPi is designed for PA systems, live sound, speaker alignment, system commissioning, and acoustic troubleshooting. Whether you are aligning subwoofers with main speakers, checking phase relationships, analyzing frequency response, or tuning a complete sound system, ProPi provides the measurement tools needed for professional audio work.
Screenshots
Verdict
The clearest difference is price: AudioCalc at $2.99 against ProPi System Analyzer's $19.99. AudioCalc also leads on iOS requirement (7.0 vs 17.0). ProPi System Analyzer's advantage is update cadence (every 5 days vs every 7 months). On ads, in-app purchases 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
AudioCalc costs $2.99 and ProPi System Analyzer $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.
AudioCalc ships an update every 7 months, ProPi System Analyzer every 5 days. Both last shipped on November 6, 2026.
| Parameter | AudioCalc | ProPi System Analyzer |
|---|---|---|
| Price | $2.99 — better | $19.99 |
| Rating | 3.0 (1 ratings) — better | — |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 7 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 7.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 3 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | Nelcea | Anh Viet Do |
In-app purchases
AudioCalc
No in-app purchases
ProPi System Analyzer
No in-app purchases
Questions
Is AudioCalc free?
Is ProPi System Analyzer free?
Do AudioCalc or ProPi System Analyzer have ads?
Which is updated more often, AudioCalc or ProPi System Analyzer?
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