mugenStudyToeic vs SkillCert
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
mugenStudyToeic
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TOEIC 対策向けの語彙学習アプリ「MUGEN STUDY」。NGSL（TOEIC語彙の約92%をカバー）をベースに、AI生成の短い例文とともに四択クイズで学習します。
SkillCert
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【About This App】 Supports over 200 certifications and qualifications! Compete in real-time battles and weekly ranked matches using AI-generated exam questions based on official certification names and syllabi. Connect with fellow learners through SNS-style features and chat to expand your learning community. 【Features】 • Real-Time Battles: Compete online against other users using certification knowledge. Winners are determined by both accuracy and response speed. • Ranked Matches: Weekly seasonal rankings! Visualize your ranking and deviation score through competitive matches. • Practice Mode: Randomly selects 10 questions from the exam database. Ask AI about topics you do not understand. Users can vote questions as Good/Bad, and questions receiving many Bad votes are automatically removed every week. • Flashcards / Glossary • Community Features: Stay motivated and connect with like-minded learners through timelines (SNS), direct messaging, and chat features. • AI Diagnostic System: Automatically identifies weak areas and suggests the next best study actions to minimize learning time. 【Terms of Service / Privacy Policy】 Terms of Service: https://scba-ai.com/en/terms Privacy Policy: https://scba-ai.com/en/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: mugenStudyToeic at none against SkillCert's 3. mugenStudyToeic also leads on ads (none vs shown). SkillCert's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 26.0). On price 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. SkillCert sells 3 in-app purchases, starting at $2.99 per month. mugenStudyToeic asks for nothing beyond the download.
mugenStudyToeic ships an update weekly, SkillCert every 3 days. The most recent releases landed on September 16, 2026 and September 10, 2026 respectively.
| Parameter | mugenStudyToeic | SkillCert |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | Every 3 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 30 MB | 155 MB |
| Age rating | 17+ | 12+ |
| Developer | RYOTA SAITO | Yotaro SATO |
In-app purchases
mugenStudyToeic
No in-app purchases
SkillCert
- SKILL Cert by AI ライトプラン$2.991 Month
- SKILL Cert by AI スタンダードプラン$9.991 Month
- SKILL Cert by AI プレミアムプラン$29.991 Month
