Live / Sports
From RTP and volatility to rollover and KYC, this glossary covers the words you see across the 399app lobby, account pages and wallet screens. Whether you are exploring sports betting or navigating a live casino table, knowing the language helps you make sharper decisions at every step.
Every screen in the 399app lobby uses a specific vocabulary. A deposit page shows minimum transfer amounts and wallet options like bKash and Nagad. A slot room displays volatility tags and RTP where the provider makes that figure available. A sportsbook market lists handicap lines and over/under totals.
Different parts of the 399app platform use different language. Here is where each family of terms shows up so you know which section to look at when a word is unfamiliar.
You see RTP, volatility, paylines and multipliers directly on slot and crash game screens. Titles like Crash Turbo display a live multiplier, while slot rooms show volatility where the studio exposes it. These terms describe how a game behaves, not what it will pay out to you specifically.
The sportsbook uses decimal or fractional odds, Asian handicap lines and over/under totals. Cricket betting — BPL matches and international fixtures — is where these terms come up most for Bangladesh sports fans. The displayed odds already include the house margin, sometimes called the vig or overround.
Your account wallet section uses terms like deposit, withdrawal, e-wallet, transfer limit and transaction status. bKash, Nagad and Rocket are the local payment rails shown on the deposit screen. Balance, pending and processed are the three states you will see next to any transaction record.
Any active information on the promo board lists a wagering requirement, minimum qualifying amount and expiry period. Rollover and turnover mean the same thing here — the total bet volume required before a gameplay becomes withdrawable. Read the published conditions on that screen before you use any offer.
These are the six terms that come up most often across the slot rooms, live tables and crash games on the 399app platform.
RTP stands for Return to Player. It is a percentage showing how much of total wagers a game returns over a very large number of rounds.
House edge is the built-in margin the platform holds on each game or market. It is the flip side of RTP carries a 4% house edge.
Volatility describes how a slot pays out — frequent smaller wins at low volatility, or rare but larger wins at high volatility.
A wager or turnover requirement is the total bet volume you must reach before a gameplay tied to a information becomes withdrawable.
In slot game terms, a jackpot is the largest prize-pool available within that game's feature mechanics. Some slots offer a fixed top prize; others build a pooled amount across sessions. 399app does not quote jackpot amounts independently — check the game screen for the figure the studio displays.
A live dealer game streams a real human dealer running a table — baccarat, roulette or blackjack — from a studio, with results determined by physical cards or a wheel rather than an RNG.
These six terms relate to the sportsbook markets, wallet transactions and account verification steps you encounter on the platform.
Asian handicap is a betting format that removes the draw outcome by giving one side a head start in goals or runs.
Over/under is a market where you bet on whether a combined statistic — total runs in a cricket innings, total goals in a match — finishes above or below a line the platform sets.
Rollover is the number of times you must bet through a qualifying amount before the attached gameplay becomes eligible for withdrawal.
An e-wallet is a mobile-based payment account used to move funds without a traditional bank. On 399app, the supported local e-wallets are bKash, Nagad and Rocket.
KYC stands for Know Your Customer. It is the identity verification step where you submit documents to confirm your account details match who you are. Completing KYC unlocks full withdrawal access on the platform. The account section shows your current verification status and the documents required at each stage.
These are account-level controls — session, loss or deposit boundaries — that you can set from within your account settings to manage your own activity.
Understanding a term in isolation is one thing; spotting it on an actual screen is another. When you open Crash Turbo from the lobby, the multiplier climbing in real time is the live RTP mechanic in action — the long
The rising multiplier in Crash Turbo is the game's core mechanic. High volatility means the crash point varies sharply between rounds. Knowing this stops you from treating any single round result as a pattern rather than a random outcome.
The handicap figure next to a match adjusts for a perceived strength difference between two sides. A -1.5 handicap means the favoured team must win by two or more for that side of the bet to succeed. The sportsbook screen labels this clearly next to the odds.
After initiating a deposit via bKash or Nagad, your wallet screen shows the transaction as pending. Once the transfer clears on the payment rail, the status moves to processed and your account balance reflects the amount. No action is needed from you during that window.
Your account page shows KYC status as a badge. An incomplete badge means at least one document submission is still required. Follow the steps listed on that screen — the platform shows exactly which documents are needed and which stage of verification you are currently at.
If a term on a game screen, promo board or account page is not clear after checking this glossary, the support routes published on the site are the right next step. Use the channel that suits your timing.
The live chat option is accessible from the support section of the site. It connects you to an agent who can explain what a specific term means in the context of your account or a particular screen you are looking at.
The help centre on the platform has published articles covering account verification steps, wallet transaction terms and information conditions. Search the term you are unsure about to find the article that applies to your situation.
For account-specific questions — KYC status, transaction labels or rollover tracking — you can submit a support request directly from the account section. The form routes your query to the team that handles wallet and verification questions.
These questions are about how to interact with the platform features that use the terms defined above — distinct from the definitions themselves.
Open the slot from the lobby, then look for an information or paytable icon within the game interface. RTP is shown there only when the studio publishes it. Not every title displays it, so the absence of a figure does not indicate anything unusual about that game.
Log in and open the account section from the navigation menu. Your KYC badge is displayed there alongside a list of any outstanding document requirements. Follow the on-screen steps to submit what is needed and the status updates once the team reviews your submission.
After completing the transfer from your bKash or Nagad app, go to the wallet or transaction history section in your account. The deposit appears with a pending status initially, then moves to processed once confirmed. The amount and timestamp are both recorded there for your reference.
Open the information section and select the offer you activated. The full conditions — including the rollover multiplier, qualifying amount and expiry date — are listed in the terms attached to that specific information. Read those before using the offer.
Account controls are available from the account settings section of the platform. The options shown there describe what limits you can apply and how to activate them. Review the options on that screen to see which settings apply to your account type.
Use the live chat option from the support section of the site. Describe the screen you are on and the term you are seeing. An agent will clarify what it means in the context of that specific game or account feature without needing you to leave the platform.