MBookTester vs Korean Checker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MBookTester
This app allows InDesign users to preview and test multimedia content created with mbook 2.0 on their iPad. It provides a realistic testing experience before distributing content online.
- Preview mbook 2.0 digital publications
- Test multimedia content
- Realistic iPad feel
- Copy .mbook files via iTunes
- Better than iPad simulator testing
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mbook 테스터는 인디자인 기반의 디지털 퍼블리싱 솔루션인 mbook 2.0으로 만들어진 MBook을 확인하고 테스트해 볼 수 있는 앱입니다. 자세한 내용을 원하시면 앱과 함께 포함된 MBook 2.0 Guide를 참조하시거나 www.mbookharmony.com 을 방문하시기 바랍니다. 감사합니다. MBookTester is a test content viewer. MBookTester allows InDesign users to preview the generated multimedia contents in the iPad. Using iTunes, users can copy ".mbook" files to local iPad. It allows users to test the "real feel" on the iPad before uploading it to the server for distribution. It provides better testing experience then using iPad simulator.
Korean Checker
Correct spelling and spacing errors in Korean sentences. This app offers AI-powered sentence transformation, a history of corrections, and easy sharing of the results. It helps users identify and learn from common mistakes.
- Correct spelling and spacing
- AI sentence transformation
- Copy corrected sentences
- Share easily
- Correction history
- Check frequently misspelled words
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- You can correct the spelling and spacing of sentences. - You can easily copy the corrected sentence. - Easily share. - Wrong spelling and incorrect spacing history provided. - You can check frequently misspelled words or spacing errors. - You can review your spelling check history. You can transform sentences in various ways using AI features. Terms of Service: https://soulduse.blogspot.com/2023/09/blog-post.html Privacy Policy: https://soulduse.blogspot.com/2023/09/blog-post_27.html
Screenshots
Verdict
The clearest difference is in-app purchases: MBookTester at none against Korean Checker's 4. MBookTester also leads on ads (none vs shown) and rating (5.0 vs 4.7). Korean Checker's advantage is ratings volume (55 vs 1). On price, review sentiment and update cadence 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
Both are free to download. Korean Checker sells 2 in-app purchases, starting at $3.99 per month. MBookTester asks for nothing beyond the download.
MBookTester holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Korean Checker has 55 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 50% of MBookTester's written reviews are positive against 53% of Korean Checker's, so the app with the better star average is not the one people write more warmly about.
MBookTester ships an update every 4 months, Korean Checker every 5 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | MBookTester | Korean Checker |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.7 (55 ratings) |
| Positive reviews | 50.0% of reviews | 52.7% of reviews — better |
| Number of ratings | 1 | 55 — better |
| Update frequency | Every 4 months — better | Every 5 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 16 MB | 35 MB |
| Age rating | 4+ | 12+ |
| Developer | soluwin corporation | Hyunwoo Kim |
Customer experience
MBookTester
Korean Checker
In-app purchases
MBookTester
No in-app purchases
Korean Checker
- Monthly subscription2 variants$3.991 Month
- Annual subscription2 variants$19.991 Year
Questions
Is MBookTester free?
Is Korean Checker free?
Which has better reviews, MBookTester or Korean Checker?
Do MBookTester or Korean Checker have ads?
Which is updated more often, MBookTester or Korean Checker?
Other comparisons
