# Echoia vs ShadowFlow

The clearest difference is in-app purchases: Echoia at none against ShadowFlow's 4. Echoia also leads on update cadence (every 2 days vs every 5 days) and iOS requirement (13.0 vs 17.0). ShadowFlow's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. ShadowFlow sells 4 in-app purchases, starting at $6.99 per month. Echoia asks for nothing beyond the download.

Echoia ships an update every 2 days, ShadowFlow every 5 days. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Echoia | ShadowFlow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 days** | Every 5 days |
| Size | 43 MB | 6 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Keecon](https://appshunter.io/developer/963043657) | [Daichi Tanabe](https://appshunter.io/developer/1895317818) |

## What reviewers say

### Echoia

[App page](https://appshunter.io/ios/app/echoia-english-pronunciation/id6760895371)

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

**In-app purchases:** none


### ShadowFlow

[App page](https://appshunter.io/ios/app/shadowflow-speaking-practice/id6790476129)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ShadowFlow Pro (Monthly) | $6.99 | per month |
| ShadowFlow MAX (Monthly) | $14.99 | per month |
| ShadowFlow Pro (Yearly) | $59.99 | per year |
| ShadowFlow MAX (Yearly) | $129.99 | per year |


## Frequently asked questions

### Is Echoia free?

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

### Is ShadowFlow free?

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

### Do Echoia or ShadowFlow have ads?

Echoia shows ads; ShadowFlow does not.

### Which is updated more often, Echoia or ShadowFlow?

Echoia ships an update every 2 days, and ShadowFlow every 5 days. Most recently, Echoia was updated on October 31, 2026 and ShadowFlow on November 5, 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.*