방구석 연구소(구버전) vs What's the code
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
방구석 연구소(구버전)
Explore your personality and relationships through fun quizzes and content. Discover your dating style, MBTI, and how you compare to others. Understand yourself better and find compatible individuals.
- Personality quizzes
- MBTI analysis
- Dating style exploration
- Compatibility insights
- Self-discovery content
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여러분은 ‘나’에 대해서 얼마나 알고 계시나요? 대답하기 힘들다면, 방구석 연구소에서 ‘나’를 연구해보세요! 방구석 연구소에는 내가 어떤 사람인지 자신 있게 대답할 수 있는 사람들이 넘쳐날 거예요. 나의 연애 스타일부터 MBTI까지 다양한 주제의 콘텐츠와 함께 내가 어떤 사람인지 고민해봐요! 나와 비슷한 사람은 얼마나 있는지, 나랑 잘 맞는 사람은 어떤 사람일지… ‘ 나’ 에 대한 모든 것을 알아볼 수 있어요. 당신의 이야기로 가득 채워질 당신만의 방구석을 응원하며, 각자의 작은 방구석들이 모여 함께 만들어갈 방구석 연구원들을 마음 깊이 환영합니다 :)
What's the code
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“What’s the Code?” is a fun and clever app that turns your memo into a cipher with just a 4-digit passcode. Simply enter your message, set a passcode, and tap the “Run” button to transform it into a secret code! Key Features • Easy to use: Type your memo → Enter a 4-digit passcode → Tap “Run” — done! • Your secret message appears with a unique paper animation • Instantly copy or share the result with friends • Ads are included, but never interrupt your flow — they appear gently only once every 8 runs Use it when you want to share secret messages with friends, have fun with inside jokes, or simply add a mysterious twist to your chats. Start with “What’s the Code?” today!
Screenshots
Verdict
The clearest difference is update cadence: What's the code at every 5 days against 방구석 연구소(구버전)'s every 2 months. 방구석 연구소(구버전)'s advantage is iOS requirement (13.0 vs 18.4). 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.
방구석 연구소(구버전) ships an update every 2 months, What's the code every 5 days. The most recent releases landed on October 16, 2026 and October 7, 2026 respectively.
| Parameter | 방구석 연구소(구버전) | What's the code |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | — |
| Positive reviews | 65.9% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 2 months | Every 5 days — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 18.4 |
| Further details — not scored | ||
| Size | 16 MB | 14 MB |
| Age rating | 12+ | 17+ |
| Developer | 더에스엠씨 | Boyle Sim |
In-app purchases
방구석 연구소(구버전)
No in-app purchases
What's the code
No in-app purchases









