
64
BU Score
Solid
중고나라 - 안심되는 중고거래
✍️ BU Analytics Review
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중고나라 - 안심되는 중고거래 is an Android app from Joonggonara Inc. in the Shopping category, currently rated 3.5★ across 61,338 ratings. Initial signal reads as mixed reviews — supporters praise core features while critics cite stability/value gaps.
Our BU Score puts it at 64 — Solid (established niche player). For a Shopping app, that means established niche player.
Track changes month-over-month in the Performance section below — live snapshot history and revenue forecast included.
📊 Performance Tracking LIVE
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Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
Range:
💰 Forecast Revenue / mo
MODELRevenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 3 of 3 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Mid install base (61,338 ratings)METRIC | +$5,500 | |
| Below-average rating (3.5★)METRIC | −$1,500 | |
| Ad-supported / freemiumMETRIC | +$600 |
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)
📈 Reviews Growth
LIVECumulative review count from first BU snapshot. Each point = a tracked update.
⭐ Rating Trend
LIVEAverage rating evolution. Updates with each new review batch.
🗓️ Snapshot Timeline
HISTORYEach bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →🔖 v8.7.3🔄 updated 3w ago📂 Shopping💰 Free
📝 About this app
Joonggonara, Korea's leading secondhand trading platform, has become even safer.
Through the "Safety Guarantee Project," Joonggonara is reducing users' concerns about fraud and creating a trustworthy trading environment.
✔️ Secure Payment – Secure payment and delivery all in one.
✔️ Compensation System – Been a victim of fraud? Up to KRW 1 million in compensation.
✔️ Self-Review – Select and verify only the essential information (currently available for some users).
✔️ Certified Seller – Trade with a highly trusted seller.
Experience the most secure secondhand trading experience today.
※ App Access Permissions Guide
In accordance with Article 22-2 (Consent to Access Permissions) of the Information and Communications Network Act, which took effect on March 23, 2017, the following information provides information on the access permissions required to use the service.
[Required Access Permissions]
- Device and App History: Check for app errors and improve usability
- Device ID: Identify and track devices, and verify services
- Wi-Fi Connection Information: Check network connections when using the app
[Optional Access Permissions]
- Storage: Create or save photos
- Location Information: Search for location information and share location information when using map features
- Camera: Take photos or videos for chats, posts, and profile creation
- Microphone: Voice recognition when recording videos
■ Optional access permissions can be consented to when using related features. Even if you decline consent, you can still use app services other than those related to the relevant features.
Through the "Safety Guarantee Project," Joonggonara is reducing users' concerns about fraud and creating a trustworthy trading environment.
✔️ Secure Payment – Secure payment and delivery all in one.
✔️ Compensation System – Been a victim of fraud? Up to KRW 1 million in compensation.
✔️ Self-Review – Select and verify only the essential information (currently available for some users).
✔️ Certified Seller – Trade with a highly trusted seller.
Experience the most secure secondhand trading experience today.
※ App Access Permissions Guide
In accordance with Article 22-2 (Consent to Access Permissions) of the Information and Communications Network Act, which took effect on March 23, 2017, the following information provides information on the access permissions required to use the service.
[Required Access Permissions]
- Device and App History: Check for app errors and improve usability
- Device ID: Identify and track devices, and verify services
- Wi-Fi Connection Information: Check network connections when using the app
[Optional Access Permissions]
- Storage: Create or save photos
- Location Information: Search for location information and share location information when using map features
- Camera: Take photos or videos for chats, posts, and profile creation
- Microphone: Voice recognition when recording videos
■ Optional access permissions can be consented to when using related features. Even if you decline consent, you can still use app services other than those related to the relevant features.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- 중고나라 - 안심되는 중고거래
- Developer
- Joonggonara Inc.
- Bundle ID
- com.elz.secondhandstore
- App Store URL
- Open in App Store
- Category
- Shopping
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- Not found
- Tagline
- Not found
- Description
- Not found
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Not found
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $1.7K/mo
- Top-grossing rank
- Not found
- All-time revenue
- Not found
- Pricing
- Not found
Founder
- Name
- Not found
- X / Twitter
- Not found
- Not found
- GitHub
- Not found
- X followers
- Not found
- Public statements
- Not found
Funding
- Total raised
- Not found
- Last round
- Not found
- Investors
- Not found
- Crunchbase
- Not found
- AngelList
- Not found
Press & Links
- Articles found
- Not found
- Listed on
- Not found
- Blog
- Not found
- Press / News
- Not found
Contacts & Socials
- Socials
- Not found
- Not found
- Phone
- Not found
- Contact page
- Not found
- About page
- Not found
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.




