Comparison

YBM리더스 vs HalluProof

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

Head to head
About

YBM리더스

Read full description

* YBM리더스 회원 전용 ios 앱 OPEN! * Mobile로 언제, 어디서나 YBM리더스를 만나보세요! YBM리더스에서는 회원이 영어 도서를 읽고 다양한 학습 액티비티를 진행하면, 영어독서지도서 과정을 수료한 선생님의 1:1 코칭으로 올바른 독서습관과 영어에 대한 자신감을 부여해 줍니다. 도서 학습을 통해 획득한 포인트는 기프티콘을 구매하거나 나만의 아바타를 꾸밀 수 있습니다. [이용안내] 1. 리더스 도서 학습 및 레벨테스트 응시가 가능합니다. 2. 학습을 통해 적립된 포인트는 Point Mall과 My Avatar에서 사용이 가능합니다. 3. PUSH 알림 서비스를 통해 선생님이 보낸 메시지를 실시간으로 앱을 통해 확인할 수 있습니다. 4. JET-Kids, JET, TOEIC Bridge까지 6개월에 한번씩 응시 가능한 공인인증 모의테스트를 통해 학생의 영어실력 향상 과정을 객관적으로 확인할 수 있습니다. [사용가능 단말기] iPhone 해당 앱은 위 기종에 최적화되어 있으며 이외의 단말기에서 실행은 될 수 있으나 일부 화면이 깨지거나 제대로 동작하지 않을 수 있습니다. [유의사항] - 권장 OS는 ios 10.0 이상입니다. - 3G 환경에서 다운로드시 사용하시는 요금제에 따라 데이터 요금이 발생할 수 있습니다. Wi-Fi에서 다운로드 받으시길 권장합니다.

About

HalluProof

Features
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AI is confidently wrong. It cites papers that were never written, invents numbers, and flips relationships backwards. The trouble is that the falsehood sits among true statements. Reading alone won't catch it. HalluProof trains you to find it yourself. ■ 5–10 minutes a day, with new real-world cases added over time Each day you read a passage written like real AI output and decide for yourself what is false. Once you commit, the hallucinated spans are highlighted, and you see why they are wrong alongside the actual facts and their sources. ■ Six steps per challenge Judge → Reveal → Think deeper → Learn the pattern → Practise → Insight It doesn't just hand you the answer. You say out loud why you were taken in, and the trick gets filed as a pattern you'll recognise next time. ■ Seven hallucination patterns Reversed facts · Fabricated sources · Distorted figures · Overstatement Outdated claims · Misapplied context · Hidden risks and limits Your proficiency is tracked per pattern, so you train the weakest one first. ■ Practice modes • Daily Challenge: one a day, the same for everyone • Quick Random: one random challenge — judge it, see the answer • Free Study: every day, in any order Daily and random practice are kept apart from your course progress but still count toward your streak. ■ Habits that outlast the app Where to verify what — scholarly databases for research, medical literature for health, official registries for law. The aim is a habit you use outside the app. ■ Learn More Links to AI lessons for kids, families and classrooms, and to research and seminar updates for professionals. They open in an in-app browser. ■ Everything stays on your device No account, no sign-in, no uploads. Lessons work fully offline; a web page opens only when you tap a Learn More link. Your progress never leaves your phone. ■ Home screen widget Your streak and today's challenge on the Home Screen and Lock Screen. Tap to jump straight in. ■ iPhone and iPad On iPad, the AI passage and its verification sources sit side by side. This is not an app against using AI. It's an app for using it properly — by learning to doubt it first.

Screenshots

YBM리더스4 screens
HalluProof4 screens

Verdict

The call

The clearest difference is update cadence: HalluProof at every 2 weeks against YBM리더스's every 2 months. YBM리더스's advantage is iOS requirement (9.0 vs 18.0). On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

YBM리더스 ships an update every 2 months, HalluProof every 2 weeks. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 4 level
YBM리더스 versus HalluProof: the parameters behind the verdict, then further details
ParameterYBM리더스HalluProof
PriceFreeFree
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.0 — better18.0
Further details — not scored
Size19 MB7 MB
Age rating4+4+
DeveloperYBM NET, Inc.Hyun-Su Kim

In-app purchases

None

YBM리더스

No in-app purchases

None

HalluProof

No in-app purchases

Questions

Is YBM리더스 free?
YBM리더스 is free to download, with no in-app purchases.
Is HalluProof free?
HalluProof is free to download, with no in-app purchases.
Do YBM리더스 or HalluProof have ads?
Neither YBM리더스 nor HalluProof shows ads.
Which is updated more often, YBM리더스 or HalluProof?
YBM리더스 ships an update every 2 months, and HalluProof every 2 weeks. Most recently, YBM리더스 was updated on November 2, 2026 and HalluProof on October 31, 2026.

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