iChromatic vs Soniq Viewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iChromatic
This app provides precise instrument tuning using your device's microphone and a visual strobe display. It offers frequency readouts and responsive waterfall strobes for accurate pitch matching. Configure reference frequencies and tune a wide range of notes.
- Visual strobe display for tuning
- Frequency readout in Hz and cents
- Accurate waterfall strobe panes
- Concert A reference frequency adjustment
- Wide tuning range
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The HotPaw iChromatic Strobe Tuner uses the built-in microphone on your iPhone to allow you to tune a musical instrument rapidly and precisely via an animated visual display. For your iPad, please see the iChromatic Strobe Tuner HD. For guitar tuning, please see the HotPaw inTuna Strobe Guitar Tuner. Both of these apps are also here in the iOS app store. iChromatic includes both a frequency readout and 3 highly accurate and responsive waterfall strobe panes which allow extremely precise tuning. When the waveform patterns line up vertically as well as stop moving sideways in the strobe panes, this indicates that the input pitch (or a strong harmonic of the pitch) matches the frequency of the nearest equal temperament note. With the waterfall strobe tuning window, even very slight differences in frequency between the pitch detected and the target perfect pitch will cause the abstract waveform to waver or move sideways as it cascades down the strobe window. iChromatic also includes a pitch frequency readout in Hz and cents. Configuration options include a Concert A reference frequency adjustment in both Hz and Cents. Please try the Free inTuna A440 app, also in the iOS App store, before purchasing iChromatic, to see if you appreciate the advantages of using a strobe tuner. Tuning range using the built-in iPhone microphone is from 2 octaves above middle-C to 2 octaves below.
Soniq Viewer
This app visualizes sound frequencies using your device's microphone. It displays the pitch of your voice and music on an equally-tempered musical scale, with adjustable input sensitivity and up to 60 frames per second.
- Frequency spectrum visualization
- Microphone audio input
- Pitch detection
- Equally-tempered musical scale display
- Adjustable input sensitivity
- High frame rate display (up to 60 fps)
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Soniq Viewer is a frequency spectrum visualizer. It uses a microphone to pick up audio to draw. You can easily see the pitch of your voice. ================================================== * To play and visualize the music in iPod Library, use "Soniq Player". * Requires a microphone(built-in mic or earphones with mic). ================================================== Features - Spectrum is displayed relative to an equally-tempered musical frequency scale. - Supports input sensitivity setting. - Spectrum is displayed up to 60 frames per seconds.
Screenshots
Verdict
The clearest difference is review sentiment: Soniq Viewer at 100% against iChromatic's 50%. Soniq Viewer also leads on price ($1.99 vs $19.99) and rating (5.0 vs 3.0). iChromatic's advantage is iOS requirement (12.0 vs 15.6). On ratings volume, update cadence, 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
iChromatic costs $19.99 and Soniq Viewer $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Soniq Viewer holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 50% of iChromatic's written reviews are positive against 100% of Soniq Viewer's.
iChromatic ships an update every 15 months, Soniq Viewer every 20 months. The most recent releases landed on October 8, 2026 and October 23, 2026 respectively.
| Parameter | iChromatic | Soniq Viewer |
|---|---|---|
| Price | $19.99 | $1.99 — better |
| Rating | 3.0 (1 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 1 |
| Update frequency | Every 15 months — better | Every 20 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 1 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | HotPaw Productions | Yuji Koike |
Customer experience
iChromatic
Soniq Viewer
In-app purchases
iChromatic
No in-app purchases
Soniq Viewer
No in-app purchases
Questions
Is iChromatic free?
Is Soniq Viewer free?
Which has better reviews, iChromatic or Soniq Viewer?
Do iChromatic or Soniq Viewer have ads?
Which is updated more often, iChromatic or Soniq Viewer?
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