Start with the data question
Before choosing a screen, define the question: reading price, observing trades or studying an order book. Tools may not cover the same markets or feeds. Check the data source, coverage and provider terms. An impressive interface does not establish the observation’s relevance.
Separate licences and feeds
Software access does not guarantee access to every data source. Ask about required subscriptions, user classifications and delayed-data behaviour. History and replay should remain identified as such. Do not confuse one market’s volume with all instruments sharing a similar name.
Explain the observation
A useful exercise describes what the screen shows and what it cannot establish. COF journal archives offer order-flow readings while retaining publication context. Check current terms with software publishers before buying. No software guarantees profitable decisions.
Start with a work question
Before comparing interfaces, write the question to answer and the data required. Reviewing price analysis is a different task from examining an execution feed. A software name does not establish that the needed feed is included in the subscription being considered.
Then compare the tool's documents, the data provider's terms and the relevant account conditions. This guide is not an exhaustive inventory of current ATAS, Bookmap or TradingView features. The names organise the question without a ranking or a claim of local availability.
Check an example before paying
A sample task completed in a trial version can clarify the need. It remains separate from live execution evidence and does not, alone, justify another subscription. Keep the limitations and dependencies discovered.
Your verification grid
| Item | Document or check to request |
|---|---|
| Question | Describe a specific task: price history, executions or one market's order book. |
| Instrument | Identify venue, contract and data source rather than only a familiar symbol. |
| Feed | Ask whether data is live, delayed, historical or simulated. |
| Licence | Separate software subscription, data subscription and broker connection. |
| Exercise | Try a documentary task during a trial before inferring a purchase requirement. |
Practical questions
Does the same symbol show the same data in every tool?
Do not assume so. Check the exact instrument, venue, source and timezone. Similar displays may describe different objects or periods. This guide does not certify each vendor's current features.
Which tool should I buy first?
This guide prescribes no purchase. Start with a verifiable question, then read data and licence requirements for the contemplated version. If an existing resource answers the question, the software name does not establish a need for another subscription.
To complete this file: Trading education: recognise a useful learning path ; Trading journal: fields that make decisions reviewable.
Sources and limitations
COFIATRADING — offres, espace et preuves actuels. Editorial consultation: 8 October 2026. Supplier statements do not replace independent checks. Re-read terms at the time of your decision.
COFIATRADING has commercial relationships with partners presented on the site. This guide is educational, without personalised investment advice. Trading involves capital loss risk; past performance does not guarantee future results.
Continue checking: current offers and access, public evidence, Desk space and Academy resources.