# Shadow Teacher vs SpeakFlow AI Shadowing

The clearest difference is in-app purchases: Shadow Teacher at none against SpeakFlow AI Shadowing's 2. Shadow Teacher also leads on iOS requirement (12.0 vs 17.0). SpeakFlow AI Shadowing's advantage is update cadence (every 2 weeks vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. SpeakFlow AI Shadowing sells 2 in-app purchases, starting at $2.99 per month. Shadow Teacher asks for nothing beyond the download.

Shadow Teacher ships an update every 4 months, SpeakFlow AI Shadowing every 2 weeks. The most recent releases landed on September 30, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Shadow Teacher | SpeakFlow AI Shadowing |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Size | 32 MB | 14 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shadow Agency](https://appshunter.io/developer/1789907104) | [Shota Iwamatsu](https://appshunter.io/developer/1831883201) |

## What reviewers say

### Shadow Teacher

[App page](https://appshunter.io/ios/app/shadow-teacher/id6740425306)

**Features:** macOS Compatibility

**In-app purchases:** none


### SpeakFlow AI Shadowing

[App page](https://appshunter.io/ios/app/speakflow-ai-shadowing/id6749724544)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Plan (Monthly) | $2.99 | per month |
| Premium Plan (Annual) | $29.99 | per year |


## Frequently asked questions

### Is Shadow Teacher free?

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

### Is SpeakFlow AI Shadowing free?

SpeakFlow AI Shadowing is free to download, with in-app purchases available.

### Do Shadow Teacher or SpeakFlow AI Shadowing have ads?

Neither Shadow Teacher nor SpeakFlow AI Shadowing shows ads.

### Which is updated more often, Shadow Teacher or SpeakFlow AI Shadowing?

Shadow Teacher ships an update every 4 months, and SpeakFlow AI Shadowing every 2 weeks. Most recently, Shadow Teacher was updated on September 30, 2026 and SpeakFlow AI Shadowing on October 14, 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.*