Dev Q vs DDQ
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dev Q
Prepare for technical developer interviews with curated questions and clear answers across CS, iOS, Android, and Frontend topics. Get weekly updates to keep your knowledge fresh for last-minute reviews or on-the-go studying.
- Curated technical questions
- Clear answer explanations
- Covers CS, iOS, Android, Frontend
- Weekly content updates
- Ideal for on-the-go learning
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Dev Q: Tech Interview Prep Made Simple Dev Q helps you master key technical questions for developer interviews — across CS, iOS, aOS, and Frontend. Whether you’re preparing last minute or reviewing on the go, Dev Q has you covered. • Curated questions & clear answers • Covers CS, iOS, aOS, and Frontend • Weekly updates to keep content fresh • Perfect for commute, breaks, and pre-interview reviews Ace your next interview — with Dev Q.
DDQ
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매일 5분, 개발 지식을 퀴즈로 다집니다. Ddq는 개발자를 위한 데일리 퀴즈 앱입니다. 백엔드·프론트엔드·CS·데이터베이스·시스템설계·인프라·iOS까지, 실무에서 자주 나오는 개념을 짧은 문제로 풀며 감을 유지하세요. ■ 오늘의 퀴즈 관심 분야와 최근 오답을 반영해 매일 새로운 문제를 골라 드립니다. 객관식과 단답을 섞어 5문제, 약 8분이면 충분합니다. ■ 주제별 퀴즈 원하는 분야를 골라 바로 시작. 탭할 때마다 새로운 문제로 회전합니다. ■ 성장 기록 연속 학습일(스트릭), 잔디 그래프, 카테고리별 정답률로 나의 학습을 한눈에. ■ 나에게 맞춘 난이도 주니어·미들·시니어 난이도와 하루 목표를 설정해 내 페이스대로. 가볍게 시작해 매일 이어가세요. 오늘의 문제가 준비됐어요.
Screenshots
Verdict
The clearest difference is update cadence: DDQ at every 5 days against Dev Q's every 6 months. 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Dev Q ships an update every 6 months, DDQ every 5 days. The most recent releases landed on October 13, 2026 and October 14, 2026 respectively.
| Parameter | Dev Q | DDQ |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 18 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | jaesung Lee | woobyeong jeong |
In-app purchases
Dev Q
No in-app purchases
DDQ
No in-app purchases
