# SRT Flow vs Noise Eraser

The clearest difference is in-app purchases: SRT Flow at none against Noise Eraser's 1. Noise Eraser's advantage is ads (none vs shown) and update cadence (weekly vs every 4 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Noise Eraser sells 1 one-off in-app purchase. SRT Flow asks for nothing beyond the download.

SRT Flow ships an update every 4 weeks, Noise Eraser weekly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | SRT Flow | Noise Eraser |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 weeks | **Weekly** |
| Size | 16 MB | 25 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [changok kim](https://appshunter.io/developer/1877796246) | [SHIHYUN KIM](https://appshunter.io/developer/6787841677) |

## What reviewers say

### SRT Flow

[App page](https://appshunter.io/ios/app/srt-flow/id6759272046)

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

**In-app purchases:** none


### Noise Eraser

[App page](https://appshunter.io/ios/app/noise-eraser-shd/id6795836431)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| unlimited record | $0.99 | one-time |


## Frequently asked questions

### Is SRT Flow free?

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

### Is Noise Eraser free?

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

### Do SRT Flow or Noise Eraser have ads?

SRT Flow shows ads; Noise Eraser does not.

### Which is updated more often, SRT Flow or Noise Eraser?

SRT Flow ships an update every 4 weeks, and Noise Eraser weekly. Most recently, SRT Flow was updated on November 5, 2026 and Noise Eraser on October 31, 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.*