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I do not use Gomi so I cannot and will not comment on their product good or bad.
I will say this.. I use both MarketDelta and Jigsaw and they in imho are the best!
I would say keep this thread going and find out from other users of Gomi what the differences are, however just bear in mind free is not always better. These are the tools of your trade, make sure they can do the job correctly.
I hope this helps,
JP
Gomi and MarketDelta have a lot of similar features but MarketDelta has the edge in terms of historical backfill.
So - if you use longer term volume profiles or care for the absolute values over time of things like cumulative delta, then MD has the edge.
MD is effectively IRT with footprints (correct me if I am wrong as MD might have more). IRT & MD give the ability to select areas to draw longer term volume profiles which is something FT71 & Kam at L2ST amongst others discuss.
I am the proprietor of Jigsaw, so I won't comment on the Jigsaw tools in terms of being better or not but there is naturally some overlap between various order flow tools. Same as most charts have similar aspects but might be built on a different basis/timeframe.
I use Gomi tools myself. I was an MD user but I found I never did find a use for the longer term profiling or delta. I'm happy to just see what occurred the current day but that is just one style of trading and GOMI does the trick. I find GOMI CD fantastic in terms of judging if a pullback is a pullback or possibly a reversal. I use that for bias in my trading.
If you look @ the first webinar I did on nexusfi.com (formerly BMT) for Order Flow - it goes through a number of different order flow tools and discusses the merits of each of them. I like to think I did that in an unbiased manner. The webinar is here: https://nexusfi.com/webinars/may4_2013/order_flow_techniques_part1/
If you think of "Order Flow" a bit like "Price charts" - there's a bunch of different ways you can present price bars both in terms of how a bar is created and whether it's a micro or macro view of the market.
It's the same with order flow, so I wouldn't look to see which one is better as much as look to see what you expect to get from the tools and then look to see which one fits your perspective best.
So that's perspectives, I'll leave others to fight over the merits!
If you have any questions about the products or services provided, please send me a Private Message or use the futures.io " Ask Me Anything" thread
Back filling features of MD are certainly a key feature, if you don't want to leave your machine on all the time to record data let alone to replay the data back in if the machine does get turned off. In those practical/usability terms GOM is let down by that current limitations of NT7 in storage of historical bid/ask data.
I think Jigsaw's DOM looks to edge it ahead, for me MD isn't as good on the execution side as NT7. One could argue each of these tools excels in complimentary areas, in that charting on MD (particularly footprints), and execution through NT7/Jigsaw DOM is also exemplary.
