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Bubblemaps vs Whodl vs RugCheck vs GMGN: what each tool actually measures

By , Whodl

Traders usually have four or five tabs open on a new coin and are not sure what each one is telling them. This is a comparison of what the common tools measure, where they overlap, and what each one leaves out. Whodl is one of them, so read this as our view of the landscape rather than a neutral review.

What each tool is for

ToolThe question it answersCore method
BubblemapsWhich holders are connected to each other?Clusters wallets by transfers between them; draws them as bubbles
RugCheckIs the contract itself dangerous?Audits mint and freeze authority, LP status, metadata, known scam patterns
GMGN (and Axiom, Photon, similar terminals)What is trading right now, and how are specific wallets doing?Live trades, PnL per wallet, smart-wallet labels, buy and sell buttons
Solscan and explorersWhat exactly happened in a transaction or account?Raw chain data
WhodlWho is really holding, what have they done before, and what happens if they sell?Full holder list at one slot, swap classification across DEXes, funding traces, a cross-coin wallet graph, impact modelling, X room reading

Where they overlap

Clusters and links. Bubblemaps popularised the picture. Whodl draws a bubble map too, and adds two link types that transfers alone do not show: wallets funded from the same source, and wallets that bought in the same block, which is the bundle fingerprint. Bubblemaps covers more chains and has a longer history of public cases.

Contract checks. RugCheck is the deeper audit. Whodl reports the basics (mint authority, freeze authority, Token-2022 extensions) on every page because they are table stakes, and leaves the full audit to tools built for it.

Smart money. Terminals label wallets as smart from PnL. Whodl labels them from its own graph: a wallet with a winning record on three or more earlier coins Whodl scanned, where at least half later peaked 3x. The two labels often agree and are built from different evidence.

What Whodl adds

  • Every holder, measured at one moment, with pools, burn addresses and exchanges removed before any share is computed.
  • Verified buys and sells, not balance changes. A transfer is never counted as a sale.
  • Wallet history across coins: the deployer's earlier launches, crews seen bundled before, repeat snipers, whales' other bags.
  • "If they sell": a modelled price drop for the top 10, the biggest linked group and the dev, using the pool's real reserves. How it is calculated.
  • Am I late: when the top wallets entered, what they paid, how many are in profit. See am I late to a coin.
  • The room: a per-coin fear and greed gauge from chain and X.
  • Plain language, delivered as a reply on X, Telegram, Discord or the web, with the full page behind it.

What Whodl does not do

  • It is not a trading terminal. There is no buy button, no live chart, no PnL on your own wallet.
  • It is not a contract auditor beyond the basics.
  • It does not score coins or call them safe. Nothing on a Whodl page is a verdict.
  • Its deepest coverage is Solana; EVM chains get holders and flows through public indexers, with less history.

A sensible stack

RugCheck or a similar audit to rule out a contract trap, a terminal to trade, and Whodl to understand who you are buying from and what they can do to the price. Ask the bot about any coin, or open it under coin reports.

How this guide was made: written by Jack Shard with AI assistance, based on the measurements Whodl makes. Last reviewed Oct 19, 2026. Details on the about page.

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