# Spectrolite vs Admin ECOFON

The clearest difference is in-app purchases: Admin ECOFON at none against Spectrolite's 1. Admin ECOFON also leads on update cadence (every 2 months vs every 8 months) and iOS requirement (12.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Spectrolite sells 1 one-off in-app purchase. Admin ECOFON asks for nothing beyond the download.

Spectrolite ships an update every 8 months, Admin ECOFON every 2 months. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Spectrolite | Admin ECOFON |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (66 ratings)](https://appshunter.io/ios/app/spectrolite/id1480240180/reviews)** | — |
| Number of ratings | **66** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 1 MB | 78 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Waxing Wave](https://appshunter.io/developer/392942046) | [Expert Telcom Pro](https://appshunter.io/developer/1546758907) |

## What reviewers say

### Spectrolite

[App page](https://appshunter.io/ios/app/spectrolite/id1480240180)

This app visualizes sound in real-time using various spectrogram types. Explore detailed audio data with intuitive touch controls and adjustable parameters. An optional purchase unlocks advanced measurement tools.

**Highlights:** Real-time spectrogram visualization, Constant-Q, linear, and mel frequency scales, Full human hearing frequency range, Intuitive touch panning and zooming, Adjustable gain, Q, and other parameters, Pro version: grids, scales, spectrum view, tap-to-measure

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $4.99 | one-time |


### Admin ECOFON

[App page](https://appshunter.io/ios/app/admin-ecofon/id1581167578)

**In-app purchases:** none


## Frequently asked questions

### Is Spectrolite free?

Spectrolite is free to download, with in-app purchases available.

### Is Admin ECOFON free?

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

### Do Spectrolite or Admin ECOFON have ads?

Neither Spectrolite nor Admin ECOFON shows ads.

### Which is updated more often, Spectrolite or Admin ECOFON?

Spectrolite ships an update every 8 months, and Admin ECOFON every 2 months. Most recently, Spectrolite was updated on November 7, 2026 and Admin ECOFON on November 3, 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.*