Suprapus vs iTone by Sonaura
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Suprapus
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Suprapus application compares 2 physical objects. The objects can be defined in either 1D (only length) or 2D (length and height). As soon as both objects are set, the comparison is done automatically and is presented visually and in text format. Nanometer, kilometer, inch, Γ₯ngstrΓΆm or light-year are just some of the 22 units available to choose from. It uses high precision to compare the objects and can handle measurements from microscopically small to astronomically large. The application adapts to current mode by changing from light to dark based on the device's settings. Suprapus application uses exploration as means of understanding how to use. To find things out, simply long tap on different components on screen.
iTone by Sonaura
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Sound, your way. iTone brings together a frequency generator, noise textures and audio tools in a clear, carefully designed interface. Explore sounds, fine-tune your settings and test your audio equipment. CREATE YOUR SOUND β’ Set a frequency from 100 Hz to 20 kHz. β’ Choose sine, square, triangle or sawtooth waveforms. β’ Combine multiple oscillators. β’ Explore a frequency range with a sweep. β’ Adjust volume and stereo balance. EXPLORE NOISE TEXTURES Discover white, pink, brown, blue, violet and grey noise, along with narrow-band noise. KEEP YOUR SETTINGS CLOSE Save your favourite settings, use the sleep timer and export your signals as WAV files. KEEP YOUR AUDIO TOOLS HANDY Frequency meter, sound level meter, chromatic tuner, metronome, musical notes, binaural beats, DTMF tones, bass test and fun sound effects. LISTEN SAFELY Start at a low volume. Do not turn up the volume to find an inaudible frequency, and stop if you feel discomfort. Microphone measurements are indicative. iTone is not a medical device.
Screenshots
Verdict
The clearest difference is update cadence: iTone by Sonaura at every 6 weeks against Suprapus's every 20 months. Suprapus's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Suprapus ships an update every 20 months, iTone by Sonaura every 6 weeks. The most recent releases landed on November 7, 2026 and October 29, 2026 respectively.
| Parameter | Suprapus | iTone by Sonaura |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 20 months | Every 6 weeks β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod β better |
| Requires iOS | 13.0 β better | 15.0 |
| Further details β not scored | ||
| Size | 2 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | ARKON Digital Solutions SRL | Sliman DUPONT |
In-app purchases
Suprapus
No in-app purchases
iTone by Sonaura
No in-app purchases









