If you are choosing between these two in order to backtest an options strategy, the comparison is already over: Sensibull does not do it. Not a weaker version of it, not behind a paywall. Its own help centre says the feature does not exist. Opstra has a dedicated backtester. For every other question - live analysis, payoff graphs, strategy building - it is a genuine contest.
That single fact decides more of this choice than anything else on either site, and most comparison pages do not mention it.
The one that settles it
| Platform | Options backtesting |
|---|---|
| Sensibull | No backtesting or historical simulator at allSensibull's own help centre, 1 Jan 2024 |
| Opstra DefineEdge | Yes - a dedicated Options Backtester, plus a separate Options SimulatorDefinedge's own Opstra product page, 10 Sept 2026 |
Sensibull's wording is unambiguous, and it is theirs rather than ours: "We currently do not have a back-testing or an options simulator feature based on historical data."
What Sensibull does have is a strategy builder with live payoff graphs and virtual trading. Those are forward-looking tools. You can construct an iron condor and watch what it does from now on. You cannot ask what that iron condor would have done through 2021.
Opstra lists an Options Backtester and a separate Options Simulator in its own feature list. So the capability is there and confirmed from the company's own page.
What we could not find out about Opstra, and are not going to guess
This is where an honest comparison has to stop short.
Opstra publishes no pricing. There is no public plans page. Third-party reviews quote a monthly figure, and we are not reprinting it, because we cannot check it against Opstra's own page and neither can you.
Opstra publishes no history depth. How far its backtester reaches is not stated anywhere public. For an options backtester that is the single most important number, and it is the one number StockMock does publish - separately for each index.
We could not resolve either by machine. opstra.definedge.com serves a seventeen-word JavaScript
shell to anything that is not a browser, so the product page on the parent Definedge domain is the
only primary source available without an account.
If you are seriously considering Opstra, log in and check the earliest date its backtester will accept before you pay for anything. That is a two-minute check and it is worth more than this page.
What each one is genuinely good at
Sensibull is the better live-analysis product, and it is free through most brokers, which makes it the default first stop for a lot of Indian traders. Option chain, PCR, max pain, payoff graphs, strategy wizard. If you want to understand a position you are about to take, it is excellent, and being free through your broker is difficult to argue with.
Opstra is the better analytical tool for someone who wants to study how a position behaves over time - Greeks, volatility surfaces, and a backtester behind them.
Neither is a general strategy backtester. Both are options-analysis products where backtesting is one feature among many.
The question underneath the question
People search this comparison because they want to know whether a strategy has worked. That is a different question from what a position is worth right now, and it needs different things: history that goes back far enough to include a market you did not expect, and costs that are modelled honestly enough that the answer survives contact with a real broker.
Worth knowing before you spend time on either: NIFTY weekly options did not exist before February 2019. Any platform implying a decade of NIFTY weekly history is describing something the exchange did not list. BANKNIFTY weeklies go back further, to mid-2016. This is why history depth is worth asking about specifically rather than accepting a headline number, from anybody, including us.
We publish our own the same way we would want theirs: index options from 2016 for NIFTY and BANKNIFTY, 2021 for FINNIFTY, 2022 for MIDCPNIFTY, 2024 for NIFTY Next 50. Those are the dates each contract was listed, not gaps in our data.
Where we fit, stated plainly
We are a backtester, not a live-analysis terminal. If what you need is a payoff graph for a position you are entering this afternoon, Sensibull is free through your broker and is better at that than we are. Go and use it.
If what you need is to test a rule against years of settlement data with every charge itemised, that is what we built. Our Options Today page carries max pain, PCR and OI walls for five indices free and without an account, and every F&O stock has its own page. What sits behind the pricing page is the backtesting engine.
Is backtesting available in Sensibull?
No. Sensibull's own help centre says it does not have a backtesting or an options simulator feature based on historical data. Its strategy builder and virtual trading look forward from today; neither replays a strategy through past markets.
How do I backtest an options strategy in Opstra?
Opstra lists an Options Backtester and an Options Simulator in its own feature list, and both sit inside the logged-in product, which we cannot see. So we cannot honestly give you the steps. What we can tell you is the question to ask first: log in and check the earliest date the backtester will accept, because Opstra does not publish how far back its history goes.
In one line each
Sensibull: free through most brokers, the best live options terminal in India, and it does not backtest.
Opstra: it does backtest, and it will not tell you how far back or what it costs until you have an account.