# Spectrogram Pro (with super vs PhonoPaper

The clearest difference is price: PhonoPaper at Free against Spectrogram Pro (with super's $3.99. PhonoPaper also leads on rating (4.6 vs 3.8) and review sentiment (83% vs 68%). Spectrogram Pro (with super's advantage is update cadence (every 2 months vs every 4 months) and iOS requirement (7.0 vs 12.0). On ratings volume, ads, in-app purchases and device support there is nothing between them.

PhonoPaper is free to download; Spectrogram Pro (with super costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PhonoPaper holds the better App Store score, 4.6 against 3.8. Both are backed by a comparable volume of ratings — 27 and 45 respectively. Written reviews point the same way: 68% of Spectrogram Pro (with super's written reviews are positive against 83% of PhonoPaper's.

Spectrogram Pro (with super ships an update every 2 months, PhonoPaper every 4 months. Both last shipped on October 14, 2026.

## The numbers

| Metric | Spectrogram Pro (with super | PhonoPaper |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [3.8 (27 ratings)](https://appshunter.io/ios/app/spectrogram-pro-with-super-smooth-60hz-update/id415301721/reviews) | **[4.6 (45 ratings)](https://appshunter.io/ios/app/phonopaper/id865947553/reviews)** |
| Number of ratings | 27 | **45** |
| Positive reviews | 67.7% of reviews | **82.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Paid | **Free** |
| Size | 1 MB | 4 MB |
| Requires iOS | **7.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dominik Seibold](https://appshunter.io/developer/354153084) | [Alexander Zolotov](https://appshunter.io/developer/324462547) |

## What reviewers say

### Spectrogram Pro (with super

[App page](https://appshunter.io/ios/app/spectrogram-pro-with-super-smooth-60hz-update/id415301721)

Analyze sounds in real-time with spectral analysis. Discover hidden patterns in music, identify bird calls, or pinpoint annoying high-frequency noises. Save and share your visual sound analyses.

**Highlights:** Real-time spectral analysis, Adjustable FFT resolution, Logarithmic/linear frequency and amplitude scales, Multiple color schemes, Adjustable sensitivity, Save and share spectrogram images, Bode plot modes with averaging

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### PhonoPaper

[App page](https://appshunter.io/ios/app/phonopaper/id865947553)

This app decodes images containing encoded sound, allowing you to play back audio embedded within visual patterns. You can also record your own sounds and convert them into these unique visual codes. It's designed for creative audio messaging and artistic expression.

**Highlights:** Decode images with encoded sound, Create sound codes from recordings, Offline decoding capability, Analogue code for distortion resilience, Real-time, hand-controlled playback, Draw codes for unique sounds

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Spectrogram Pro (with super free?

Spectrogram Pro (with super costs $3.99, with no in-app purchases.

### Is PhonoPaper free?

PhonoPaper is free to download, with no in-app purchases.

### Which has better reviews, Spectrogram Pro (with super or PhonoPaper?

PhonoPaper is rated higher. Spectrogram Pro (with super averages 3.8 out of 5 from 27 ratings, while PhonoPaper averages 4.6 from 45 ratings.

### Do Spectrogram Pro (with super or PhonoPaper have ads?

Neither Spectrogram Pro (with super nor PhonoPaper shows ads.

### Which is updated more often, Spectrogram Pro (with super or PhonoPaper?

Spectrogram Pro (with super ships an update every 2 months, and PhonoPaper every 4 months. Most recently, Spectrogram Pro (with super was updated on October 14, 2026 and PhonoPaper on October 14, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*