Comparison

D2O Learning vs TOPIK Korean words 1

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

For mid-level Korean learners

Free

📚 Education

No ratingsView app →

About

D2O Learning

Features

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Dive into a world of knowledge and growth with D2O Learning! Gain access to an extensive library of premium content, including pre-recorded courses, live workshops, and certification programs tailored to your professional development needs. Immerse yourself in engaging learning experiences, connect with industry experts, and elevate your skills to new heights. Join our vibrant community of learners and achievers, where collaboration and support are the keys to success. Don't miss out on this opportunity to be part of the D2O Learning community and unlock your full potential!

About

TOPIK Korean words 1

Features

Read full description

Advance your Korean skills with "TOPIK Korean Words 1," the second app in our series. This app offers over 2000 words, arranged by frequency, for intermediate learners. Ideal for TOPIK or EPS TOPIK prep, you can study by reading or listening and practice pronunciation. Archive learned words to focus your study sessions. Access all features for free, or remove ads with a subscription or one-time purchase. Continue your Korean language journey with TOPIK Korean Words 1! ===================================== Terms and Conditions of Service : https://natural-square-6f8.notion.site/Terms-and-Conditions-of-Service-21d0463817fc4fd5bacc3cf94621d7e9 Privacy Policy : https://natural-square-6f8.notion.site/Privacy-Policy-d46e2540e9c4445c950b1d31e6fc4c90

Screenshots

D2O Learning4 screens

TOPIK Korean words 14 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 2 level

D2O Learning versus TOPIK Korean words 1: the parameters behind the verdict, then further details
Parameter	D2O Learning	TOPIK Korean words 1
Price	Free	Free
Update frequency	Every 7 months	Fortnightly — better
Ads	No — better	Yes
In-app purchases	Yes	Yes
Devices	iPhone	iPhone, iPad, iPod — better
Requires iOS	16.4	12.0 — better
Further details — not scored
Size	85 MB	40 MB
Age rating	17+	4+
Developer	TagMango Inc	Pracsol Inc.

In-app purchases

2 purchases

D2O Learning

One-time2

Team D2O Membership$0.99
GEM Certified Professional$4.99

2 purchases

TOPIK Korean words 1

Subscriptions1

ALL Access Monthly$2.991 Month

One-time1

ALL Access$9.99

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.