Available features include quotes, coin/fiat conversion, profit/loss, target price, average cost and portfolios. Selectable coins: KSTA, BTC, ETH, XRP, SOL, DOGE and TRX.
Official announcements remain separate settings. Price, target-price, sharp-move and kimchi-premium alerts, microphone input, voice commands, speech, shake activation, the AI assistant and chatbot have been removed.
🚀 2. Quick Start (3-minute guide)
1Open the app: Visit kstacoin.com/price/ in your browser
2Auto language detection: matches your device language (English/Chinese/Japanese/Vietnamese)
3Add to home screen: install as PWA for app-like experience
4Onboarding: accept the terms to start
Enter quantities and amounts directly, then select a coin or currency. Calculator, all-coins, profit/loss, target price, average cost and portfolio menus remain available.
🧮 3. Using the Calculator
Default tab (💰 Convert)
Real-time coin ↔ KRW conversion
USD exchange rate auto-applied
Multiple units: KRW / 10K KRW / 100M KRW
KSTA tab (⭐ KSTA dedicated)
Specialized calculations for KSTA token
Listing info, automatic target price
Multi tab (🌐 Multi)
Convert multiple coins at once
Quick compare with checkboxes
P&L tab (📈 PnL)
Enter buy price → live profit %
Target profit price auto-calculated
Stop-loss line settings
Portfolio tab (💼)
Unified management of multiple assets
Total valuation + return rate
Allocation visualization
Target tab (🎯)
Enter target price → required upside auto-calculated
Live % vs. current price
Avg price tab (📊)
Enter multiple buy records → average cost auto-computed
Buy simulator: preview how additional buys change your average
🌶️ Kimchi Premium (BTC/ETH/XRP)
The top panel displays the live Kimchi premium (based on Upbit) — premium %, current KRW price.
4. Interface changes and external banner
Enter quantities and amounts directly, then select a coin or currency. Calculator, all-coins, profit/loss, target price, average cost and portfolio menus remain available.
The home and rewards buttons, LOUI picker entry and trade button, saved-pair add control, calculation shortcuts (⌫, C, ÷2, ×2, rounding) and quick-amount buttons have been removed from the screen.
Microphone buttons, recognition, voice commands, speech playback, spoken tutorials, shake-to-speak, the AI assistant and the chat widget have been removed. Previously enabled settings do not reactivate them.
Price, target-price, sharp-move and kimchi-premium alerts and their settings have been removed. Microphone, voice AI and chatbot features are also unavailable. Calculators and the Boomerang banner remain.
The banner opens an external website. It does not load an external image or tracking script, or append quantities, portfolios or memos to the link. After navigation, consult that site’s privacy notice for handling of visits, IP addresses and other information.
This update does not delete previously stored device data or data previously sent to external services. Manage device data through reset, individual deletion or the browser’s site-data controls.
📰 5. KSTA Announcements new in v135
A 📰 KSTA Announcements feed sits at the bottom of the main screen. Announcements, events, and updates posted by the operator arrive in real time.
Announcement types
Notice: service guidance / feature updates
Event: ongoing event details
News: related news / industry trends
Alert: security / safety notices
🛡️ Safe announcement system
Every announcement carries an auto-attached disclaimer noting it is not investment advice, and harmful / solicitation language is automatically detected before posting.
Tap an announcement to follow its link; image-attached announcements display the image inline.
📊 6. Market Dashboard new in v146+
New market info cards on the main screen.
⭐ Favorite Coins
Pin up to 6 coins of interest for quick access in one card.
Tap the gear in "⭐ My Favorites" and pick from 8 coins
Pinned coins always appear at the top of the main screen
Stored on your device only; not shared with anyone
🤖 AI Market Analysis (auto card)
A market-data summary card that auto-refreshes hourly on the hour.
AI summarizes major coin prices, change %, Kimchi premium, fear & greed index
Top of the card always shows the "⚠️ Data summary only, not investment advice" disclaimer banner
Buy / sell / recommend / signal / target-price wording is automatically blocked
Generated automatically without separate human review by the operator
⚠️ Important
AI market analysis is not investment advice under the Korean Financial Investment Services and Capital Markets Act, nor virtual-asset trading advice under the Virtual Asset User Protection Act. It is informational only — all investment decisions are your own responsibility.
🌍 Cross-Exchange Price Comparison
Compare BTC / ETH / XRP / SOL / DOGE / TRX prices across 5 exchanges (Upbit / Binance / Bybit / OKX / LBank) at a glance.
Tap the card header to expand / collapse
Use the coin dropdown to change the compared coin
Highest (🔥) / lowest (💧) prices auto-highlighted
LBank download
The LBank button opens the official download page. The current link contains no referral code.
Six major coins shown across 6 four-hour slots, with color intensity indicating change. Auto-refreshes every 10 minutes while expanded.
📰 External Crypto News
Latest news from major Korean / English outlets (CoinDesk Korea, Token Post, CoinDesk, Decrypt), auto-collected every 6 hours. Tap a headline to open the source.
Microphone buttons, recognition, voice commands, speech playback, spoken tutorials, shake-to-speak, the AI assistant and the chat widget have been removed. Previously enabled settings do not reactivate them.
💼 7. Portfolio
Add an asset
Portfolio tab → + button
Choose coin
Enter quantity held
Enter average buy price (USD)
Save
Live valuation
Total valuation (KRW)
Total return %
Allocation per coin (pie chart)
ℹ️ Data storage
Portfolio data is stored only in your device's localStorage. No server transmission.
8. Price alerts removed
Price, target-price, sharp-move and kimchi-premium alerts and their settings have been removed. Microphone, voice AI and chatbot features are also unavailable. Calculators and the Boomerang banner remain.
9. Remaining notifications
Official announcements remain separate settings. The updated app attempts to disable previous price subscriptions when opened and connected to the server. Existing pushes may continue until server settings are applied or if cancellation fails.
✅ 10. First-Time Consent strengthened in v127+
Both confirmations are required before starting. Consent is stored on the device; when server recording is connected, the consent time, language, confirmations and browser information may be transmitted. Valid existing consent prevents the dialog appearing again.
💬 11. Contact Admin new in v131
For bug reports, feature suggestions, or general questions, use Settings → 💬 Contact Admin to send directly.
What you can include
Bugs / errors you found
Feature suggestions
Feedback on announcements
Other suggestions
If you'd like a reply, please leave your email. Anonymous submissions are also welcome.
📧 Direct contact
For urgent matters, you can email topjoa@gmail.com directly.
♿ 12. Accessibility Modes
Settings cover display, language, theme, official announcements, accessibility, memos and backup/restore. Removed features cannot be enabled in settings.
Official announcements remain separate settings. Price, target-price, sharp-move and kimchi-premium alerts, microphone input, voice commands, speech, shake activation, the AI assistant and chatbot have been removed.
🌐 13. Multi-Language Support
Fully supported in 5 languages:
🇰🇷 한국어 (default)
🇺🇸 English
🇨🇳 中文 (Simplified / Traditional selectable)
🇯🇵 日本語 (Polite / Casual selectable)
🇻🇳 Tiếng Việt
Auto language detection v103
Set automatically to match your device language. Unsupported languages (French, German, etc.) fall back to English.
⚙️ 14. All Settings
Settings cover display, language, theme, official announcements, accessibility, memos and backup/restore. Removed features cannot be enabled in settings.
❓ 15. Frequently Asked Questions
Q. Which coins are supported?
Current picker list: KSTA, BTC, ETH, XRP, SOL, DOGE and TRX. LOUI was removed from the picker and trade button; existing stored data and all price processing were not deleted.
Q. Is 비트코인계산기 affiliated with the KSTA token operator?
No affiliation at all. This service is an independent free tool that displays public market information of coins listed on external exchanges (LBank), such as KSTA and LOUI. There is no partnership, cooperation, or relationship of any kind with the token issuer or operator.
Q. Can I use it for investment purposes?
Per the terms, the 비트코인계산기 cannot be used as a basis for investment, and is not for investment advice or counsel. Please review the Terms of Service, Privacy Policy, and this guide; if you do not agree, please refrain from using the service.
Q. Are the prices real-time?
Quotes update according to the connected provider response. A five-second request interval does not guarantee trade timestamps or a changed price. Network delays and provider caches may affect displayed values.
Q. Where is my data stored?
Portfolios, memos and settings are stored on the device. Price lookup, notifications, inquiries and analytics may involve external communication; see the privacy notice.
Q. How do I install the app?
It's a PWA. iOS: Share → Add to Home Screen. Android: menu → Install app.
Q. My portfolio data disappeared
Clearing browser data deletes it. Please back up important data separately.
Q. How do I get in touch?
In-app Settings → 💬 Contact Admin lets you send feedback / bug reports / suggestions directly. Include your email if you'd like a reply. Direct mail: topjoa@gmail.com
Q. Who posts the announcements?
The 비트코인계산기 operator posts them. Before posting, investment-solicitation wording is automatically verified, and a "not investment advice" disclaimer is automatically added (v135 safe-announcement system).
Q. Background push doesn't arrive
For announcements and reports, check browser notification permission and the relevant subscription. Instructions to enable removed price alerts or background price checks no longer apply.