RTA Pro vs Impulso
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RTA Pro
Transform your iOS device into a professional audio analysis tool. Analyze ambient noise frequencies, pinpoint room resonance, and set up sound systems for events. Features include custom calibration, multiple display modes, and adjustable speed settings.
- Real-time audio spectrum analysis
- Frequency range 32Hz to 16kHz
- Linear, dB(A), and dB(C) weightings
- 1/3 Octave Bands, Octave Bands, and FFT display
- Adjustable speed settings
- Custom calibration options
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RTA Pro is a real time audio spektrum analyzer. It turns your iOS device into a powerful audio test system usually seen only in audio research laboratories and music studios. Such instruments are used to analyze the frequency spectrum of ambient noise, e.g. to be able to pinpoint frequencies which cause rumble in a room. Another use is the level setting setting of PA systems for concerts. Features: RTA Pro requires iOS11 or later and has been calibrated for the microphones of most iPhones. Custom calibration is also possible. The frequency range is 32Hz to 16kHz. Linear display, as well as weightings for measuring dB(A) and dB(C) is provided. Apart from 1/3 Octave Bands and Octave Bands, RTA Pro also features the display of a Fast Fourier Transform (FFT). The speed is adjustable to impulse, 128ms and 1 second.
Impulso
Measure your room's acoustic response and simulate improvements with acoustic products. Visualize reverberation time and optimize room acoustics for different room types. Supports internal or external microphones and impulse sources.
- Acoustic response measurement
- Reverberation time visualization
- Acoustic product simulation
- Room dimension input
- Room type optimization
- Internal/external microphone support
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Impulso Lite allows you to measure the acoustic response of your room using your iPhone. You can visualize the measured reverberation time (RT) in octave bands and then simulate how the acoustic response of your room will be improved when adding artnovion acoustic products. You can enter room dimensions and select the type of room you are designing for. The app will then tell if your room meets the expected RT and you can select products to optimize the response accordingly. Impulso Lite allows you to take a measurement with an internally generated signal if you are able to play it via a loudspeaker system, or using an external impulse source, such as a balloon, if you don’t. Compatible with built-in or external microphones. Check out Impulso Pro for detailed plots of energy time curves, to check for undesirable reflections, a frequency plot, which you can zoom in and a table with the acoustic parameters of your measurements such as C80, D50, STI and Bass Ratio. Impulso Pro also adds tramlines to the RT plot so you can fully optimize the response to meet the criteria for the room type selected. You can also display the spectral response of the microphone input using the new Real Time Analyzer. Check more at www.artnovion.com
Screenshots
Verdict
The clearest difference is price: Impulso at Free against RTA Pro's $5.99. Impulso also leads on ratings volume (15 vs 2) and iOS requirement (12.0 vs 17.6). RTA Pro's advantage is rating (4.5 vs 1.7) and review sentiment (50% vs 12%). On update cadence, 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
Impulso is free to download; RTA Pro costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
RTA Pro holds the better App Store score, 4.5 against 1.7. That said, the two scores are not equally well evidenced: Impulso has 15 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 50% of RTA Pro's written reviews are positive against 12% of Impulso's.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 13, 2026 and September 21, 2026 respectively.
| Parameter | RTA Pro | Impulso |
|---|---|---|
| Price | $5.99 | Free — better |
| Rating | 4.5 (2 ratings) — better | 1.7 (15 ratings) |
| Positive reviews | 50.0% of reviews — better | 11.5% of reviews |
| Number of ratings | 2 | 15 — better |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Best chart rank | #188 — better | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Matthias Schorer | Artnovion LDA |
Customer experience
RTA Pro
Impulso
In-app purchases
RTA Pro
No in-app purchases
Impulso
No in-app purchases
