# Live Spectrogram vs calcDS

The clearest difference is chart position: Live Spectrogram at #172 against calcDS's unranked. On price, ads, in-app purchases and device support there is nothing between them.

Live Spectrogram costs $1.99 and calcDS $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Live Spectrogram | calcDS |
| --- | --- | --- |
| Price | $1.99 | $1.99 |
| Rating | **[4.8 (6 ratings)](https://appshunter.io/ios/app/live-spectrogram/id630831185/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 31 months | — |
| Monetization | Paid | — |
| Best chart rank | **#172** | — |
| Size | 15 MB | 3 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Krueger Systems, Inc.](https://appshunter.io/developer/299293363) | [R.David Sisemore](https://appshunter.io/developer/990115240) |

## What reviewers say

### Live Spectrogram

[App page](https://appshunter.io/ios/app/live-spectrogram/id630831185)

**Currently charting:** #172 Top Paid · Utilities (US App Store)

Visualize sound frequencies in real-time with this tool. It displays audio intensity across time and frequency using color, helping you perfect singing, analyze animal calls, or locate household noises.

**Highlights:** Real-time audio visualization, Frequency analysis, Time-based spectrum display, Intensity shown by color, Singing voice perfection, Animal call analysis, Sound source identification

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

**In-app purchases:** none


### calcDS

[App page](https://appshunter.io/ios/app/calcds/id6470944516)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Live Spectrogram free?

Live Spectrogram costs $1.99, with no in-app purchases.

### Is calcDS free?

calcDS costs $1.99, with no in-app purchases.

### Do Live Spectrogram or calcDS have ads?

Neither Live Spectrogram nor calcDS shows ads.

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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.*