User Guide
Effective and updated: 2026-09-27 · revision 12
Operator display: PriceValue Operator · help@pricevalue.ai · 010-8782-1004
1. Official service
Use https://pricevalue.ai/. PriceValue is a free reference tool, primarily for users in the Republic of Korea, that performs arithmetic using public virtual-asset prices and user inputs. It provides no account registration, paid service, paid third-party advertising or sponsorship, affiliate/referral reward, e-commerce, order execution, virtual-asset trading, exchange, transfer or custody, exchange-account linking, automated trading, buy/sell signals, investment advice or personalized recommendations. The only operator-displayed external links are a Boomerang related-service information banner (https://boomerang.shop) and a direct LBank official-download link without a referral code (https://www.lbank.com/download). Calculation values, portfolios and memos are not appended to either URL, and no LBank trading, sign-up or deposit link is provided. On first use, confirm age, agree to the Terms, and acknowledge the Privacy Policy separately.
2. Coins and calculations
Fourteen coins are built in: KSTA, BTC, ETH, XRP, SOL, DOGE, TRX, BNB, ADA, LINK, SUI, AVAX, XLM and HBAR. Coin Management can add or remove up to three user coins. When you select a search result and tap Add, the service first checks for a valid Binance USDT quote. If it passes, the coin symbol and exact CoinGecko ID are stored on your device and the coin is selected in the calculator. A search result alone does not guarantee that a coin can be added. Custom prices are checked in this order: Binance USDT, LBank USDT, then USD from the exact CoinGecko ID; price responses may be cached for up to 30 seconds. Custom-coin charts cover the latest 24 hours.
3. Price limitations
Quotes are point-in-time values from the displayed source or a connected public API, in the currency selected on screen. Binance public price events update the built-in coins, and LBank public price events update KSTA as they arrive. Event timing varies with exchange activity, network and browser conditions. If a live stream is unavailable or stale, API backup requests target roughly 7-second intervals; this is a request target, not a guarantee that new quotes arrive every 7 seconds. User-added coins use the API path. If a live FX request fails, the last verified rate may be used for up to 24 hours; without a valid saved rate, only calculations requiring FX may be limited. When the LBank stream for KSTA is unavailable, the trade page and REST API are checked in turn. A last good KSTA quote may be used for up to 120 seconds and identified as saved data. Valid price changes fade over 220 ms for display, while calculations use the new value immediately; no interpolated price is created. Unless expressly shown, calculations exclude trading fees, tax, slippage and order-book depth, and some comparisons may treat USDT as USD. Missing prices are never invented. Before trading, check the source details, currency and the exchange's actual conditions.
4. Alerts and storage
Android alerts and the home-screen widget show fixed KSTA plus six selected coins, seven in total. The foreground calculator applies live price events as they arrive; its API backup requests target roughly 7-second intervals, but new quotes are not guaranteed at that cadence. Android background work has a minimum interval of about 15 minutes and can be delayed or omitted by system and network conditions. Preferences and portfolio data are primarily stored on the device.
5. Privacy and contact
There is no account registration, but an IP address, request/security logs, cookies or device-storage identifiers and an inquiry email can still be personal data. User coins, symbols, market identifiers and exact CoinGecko IDs are primarily stored on the browser or Android device. Coin-search terms go to the same-domain search service and may be queried with search providers when the local catalog has no match. Add verification and custom-price requests send the symbol and exact CoinGecko ID to the same-domain service, which may query Binance, LBank or CoinGecko as needed. Price requests do not include calculator quantities or purchase values. The current app has no share-link feature that puts calculation values in a URL.
6. Third-party rights and feature changes
Exchange and coin names identify sources and calculation subjects and do not imply official affiliation, endorsement or sponsorship. Logos, images, external content and price APIs may be used only after checking each provider’s commercial-use, attribution, caching, storage, redistribution, rate-limit and logo terms; public availability or attribution alone is not permission. Before adding accounts, server-side personal-data storage, ads, sponsorships, affiliate rewards, paid features, exchange connections, buy/sell signals or automated trading, the operator will re-review applicable law, terms, notices and actual data flows.
Official domain: https://pricevalue.ai/
Operator display: PriceValue Operator
Contact: help@pricevalue.ai · 010-8782-1004
26 Sep 2026 · Live price display
The compact status line shows price status, exchange name and FX status; it does not show elapsed age or a collection date/time. Expand Price and FX Source Details to see each coin's exchange name and status, connection state, and the time PriceValue received the quote. The source details show Binance or LBank without naming the connection protocol. A receive time is when PriceValue got the value, not an exchange execution time.
2026-09-26 · Calculator tools and coin-add review
When adding a search result in Coin Management, review the coin name, verified Binance USDT pair and price, and exact CoinGecko market ID before saving. The coin is added to this device only after you choose “Confirm and save.” A failed quote or a quote older than 60 seconds cannot be saved.
In Compare three scenarios, enter a buy price, quantity, and comparison price for scenarios A, B, and C, then choose USDT, USD, or KRW. Results show cost, comparison value, difference, and percentage change.ce, and percentage change. On mobile, expand the section and swipe horizontally through A/B/C.
Scenario inputs are calculated on the current page only; they are not saved or sent. This is a hypothetical calculation and does not fetch a live price. Fees, taxes, and slippage are excluded. Expand Formula and rounding to review the conversion method.
27 September 2026 · Coin selection
Add up to five coins in total by selecting Binance or LBank. The same symbol on different exchanges is a separate entry. Saving requires a valid quote from the selected exchange within 60 seconds. Later prices stay tied to that exchange; failure does not silently switch exchanges. Chart availability is separate. Check coin status in the price and FX source details.
28 September 2026 · Shared countdown
Enter a title (up to 60 characters), content (up to 1,000 characters), and target date and time. Quick presets offer one hour, tomorrow, seven days and 30 days. The input uses your device time zone, and only future targets within twenty years can create new links. Share or copy to create a short /c/ link. The preview shows an excerpt; the link shows the full content and live countdown. The timer ends at the target, while the link expires one year later. The first visit after expiry returns a 410 notice; later visits return 404. Repeating timers advance every 24 hours or seven days after the first target. An optional completion message (up to 100 characters) appears after that target. Repeating links also expire one year after the first target. Preview the shared page before sending. JPG, PNG or WebP files up to 12 MB are converted to a 1600px (최대 긴 변 / maximum long edge) JPG. Save and load settings on this device retains only the title, content, repeat option and completion message, not the target time or image. Use Edit in My countdowns to change the title, content, target, repeat, completion message or image. Save changes updates the existing URL. The creating browser credential is required; expired links cannot be edited. Unsaved changes do not appear on the shared page.
2026-09-29 · Exchange rate update
Crypto KRW conversion and the kimchi premium use ExchangeRate-API first, then Frankfurter, then the Korea Eximbank USD reference rate for the current Korean date. Browser recovery may use another verified rate or a rate stored for up to 24 hours. The separate multi-currency tab has its own FX route and does not share the Eximbank fallback throughout. /api/fx-compare compares the applied rate with Eximbank without changing the calculation.
2026-09-29 · Delete your countdown
New countdowns appear in “My countdowns” on the device where they were created. After the original target time, use Delete to remove the shared page and stored content. The deletion credential must remain in that browser. For older links, other devices or cleared browser data, contact the operator with the share URL. Repeating countdowns may also be removed after their first target time.
2026-09-30 · Calendar event
Set a target and choose Add to calendar to download an .ics file containing the title, optional content and a one-hour event. Daily or weekly options create recurring events for one year from the first target. Open the file in your calendar app and configure reminders there. Creating this file does not require a shared link.