# 선생님이 말했다 vs STEM Teller

The clearest difference is in-app purchases: STEM Teller at none against 선생님이 말했다's 2. STEM Teller also leads on iOS requirement (12.0 vs 14.0). 선생님이 말했다's advantage is device support. On price there is nothing between them.

Both are free to download. 선생님이 말했다 sells 2 in-app purchases, starting at $3.99 per month. STEM Teller asks for nothing beyond the download.

## The numbers

| Metric | 선생님이 말했다 | STEM Teller |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 3 weeks | — |
| Size | 103 MB | 255 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Dinosband Inc](https://appshunter.io/developer/1576150337) | [DIA-HAEBO CO. LTD](https://appshunter.io/developer/1688514343) |

## What reviewers say

### 선생님이 말했다

[App page](https://appshunter.io/ios/app/id1673233206)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 스탠다드 (월간) | $3.99 | per month |
| 프리미엄 (월간) | $6.99 | per month |


### STEM Teller

[App page](https://appshunter.io/ios/app/stem-teller/id6449413620)

**In-app purchases:** none


## Frequently asked questions

### Is 선생님이 말했다 free?

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

### Is STEM Teller free?

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

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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.*