What is Traderline?
The Polymarket product is listed for Windows and macOS. Traderline also has a separate Betfair product with desktop and iOS support; that mobile availability should not be applied to Polymarket.
The documented Polymarket connection imports a signer private key into the local application. This provides signing capability and is substantially more access than looking up a public wallet in a read-only research tool. Review the exact supported account and wallet-creation flow before setup.
Who it is for
- Desktop traders who prefer price-ladder execution.
- Researchers studying wallets behind large fills.
- Betfair users comparing a familiar workspace with Polymarket.
Features and coverage
- Desktop ladder
Use the Polymarket terminal on Windows or macOS to work price levels in a trading-oriented interface.
- Holder tables and filters
Inspect side, position size, entry and PnL, and filter for profitable wallets or newly created accounts.
- Large-trade tape
Filter the live trade feed, including trades above $1,000, and open the wallet behind a fill.
- Wallet profiles
Review open and closed positions, profitability, history and best wins.
- Persistent research labels
Assign labels such as experienced, bot or recreational and retain them for later research. These are organizational tags, not verified identities.
- Separate Betfair product
The Betfair route supports desktop and iOS, distinct from Polymarket’s desktop availability.
Workflows with Traderline
Investigate a fill
Open a large trade in Sonar and inspect the wallet’s positions and history before interpreting its significance.
Label a research set
Use consistent custom labels and refer to them when the same wallets reappear, without treating a label as verified identity.
Prepare a desktop session
Configure the supported local signer connection and confirm market, outcome side and size in the ladder.
Pricing and total cost
The official site advertises both venue products as free without a subscription. Exchange charges and the account’s own trading costs remain separate.
Getting started
Before you start: Betfair iOS support does not establish Polymarket iOS support.
- Download the correct desktop version from Traderline.
- Open the Polymarket setup guide and check the supported account/wallet creation flow.
- Follow the local signer instructions, noting the private-key import requirement.
- Open a market, inspect the ladder and use Sonar before configuring a trade.
Polymarket setup imports a signer private key into the local application; the trading connection is not read-only.
Useful links
What to check
- Betfair iOS support does not establish Polymarket iOS support.
- Sonar wallet labels are research tags rather than verified identities.
- Free software access does not remove underlying exchange or trading costs.
A closer look
Ratings & reviews
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Browse categoryFrequently asked questions about Traderline
Is Polymarket supported on macOS?
The official product lists Windows and macOS for Polymarket.
Does Sonar only show holders?
No. It also provides a trade feed and wallet profiles with positions and history.
Is the trading connection read-only?
No. The documented setup requires signing capability through a signer private key imported into the local application.
Do custom wallet labels persist?
Yes. Labels can be retained for later research, but they remain organizational tags.


