# D2O Learning vs TOPIK Korean words 1

The clearest difference is ads: D2O Learning at none against TOPIK Korean words 1's shown. TOPIK Korean words 1's advantage is update cadence (fortnightly vs every 7 months) and device support (3 vs 1). On price and in-app purchases there is nothing between them.

Both are free to download. D2O Learning sells 2 one-off in-app purchases and TOPIK Korean words 1 sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

D2O Learning ships an update every 7 months, TOPIK Korean words 1 fortnightly. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | D2O Learning | TOPIK Korean words 1 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Fortnightly** |
| Size | 85 MB | 40 MB |
| Requires iOS | 16.4 | **12.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [TagMango Inc](https://appshunter.io/developer/1611765353) | [Pracsol Inc.](https://appshunter.io/developer/1684893377) |

## What reviewers say

### D2O Learning

[App page](https://appshunter.io/ios/app/d2o-learning/id6480183589)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Team D2O Membership | $0.99 | one-time |
| GEM Certified Professional | $4.99 | one-time |


### TOPIK Korean words 1

[App page](https://appshunter.io/ios/app/topik-korean-words-1/id6503678699)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ALL Access Monthly | $2.99 | per month |
| ALL Access | $9.99 | one-time |


## Frequently asked questions

### Is D2O Learning free?

D2O Learning is free to download, with in-app purchases available.

### Is TOPIK Korean words 1 free?

TOPIK Korean words 1 is free to download, with in-app purchases available.

### Do D2O Learning or TOPIK Korean words 1 have ads?

TOPIK Korean words 1 shows ads; D2O Learning does not.

### Which is updated more often, D2O Learning or TOPIK Korean words 1?

D2O Learning ships an update every 7 months, and TOPIK Korean words 1 fortnightly. Most recently, D2O Learning was updated on October 24, 2026 and TOPIK Korean words 1 on October 27, 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.*