# SpectrumScan vs Quietude

The clearest difference is update cadence: Quietude at every 3 days against SpectrumScan's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SpectrumScan sells 1 in-app purchase, starting at $9.99 per month and Quietude sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

SpectrumScan ships an update every 2 weeks, Quietude every 3 days. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | SpectrumScan | Quietude |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/spectrumscan/id6746865649/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 22 MB | 40 MB |
| Requires iOS | 17.6 | 17.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [Daivurjnt](https://appshunter.io/developer/1818833157) | [Ilia Usatov](https://appshunter.io/developer/1868442271) |

## What reviewers say

### SpectrumScan

[App page](https://appshunter.io/ios/app/spectrumscan/id6746865649)

This app helps individuals with sensory sensitivities navigate public spaces. It crowdsources real-time sound and light data to provide accessibility insights about environments, aiding those with conditions like autism or ADHD.

**Highlights:** Real-time sound and light data crowdsourcing, Accessibility insights for public spaces, Supports individuals with sensory sensitivities, Aids navigation for autism, ADHD, SPS, Digital health tool for environmental awareness

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SpectrumScan Monthly Subscription | $9.99 | per month |


### Quietude

[App page](https://appshunter.io/ios/app/quietude-noise-focus-timer/id6758955377)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Quietude Pro Monthly | $1.99 | per month |
| Quietude Pro Yearly | $7.99 | per year |
| Lifetime (early bird) | Free | one-time |
| Quietude Pro Lifetime | $24.99 | one-time |


## Frequently asked questions

### Is SpectrumScan free?

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

### Is Quietude free?

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

### Do SpectrumScan or Quietude have ads?

Neither SpectrumScan nor Quietude shows ads.

### Which is updated more often, SpectrumScan or Quietude?

SpectrumScan ships an update every 2 weeks, and Quietude every 3 days. Most recently, SpectrumScan was updated on October 30, 2026 and Quietude on October 25, 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.*