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BacktestFlow vs OptionSpace

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

BacktestFlow compared with OptionSpace
DetailBacktestFlow logo BacktestFlowOptionSpace logo OptionSpace
What it doesManual forex backtesting software and trading journal with statistical analysis Volatility data and research tools powered by a market-maker-grade fitting and pricing engine
StageEstablished Not given
FoundedNot given Not given
Based inIT US
Pricing modelFreemium Freemium
PricingFree plan with 1 strategy, 3 backtest sessions, 50 trades, limited instruments and statistics. Pro at €21.58/month (€259/year) with unlimited strategies, sessions, trades, all instruments, complete statistics and Monte Carlo. Max at €36/month (€432/year) with unlimited Flow Reports, Pine Script requ Free sample plan with no card required. Retail subscription available for individual personal use in the United States with daily limits on API credits. Institutional plans available at contact pricing for any business use with annual licenses invoiced monthly via ACH or wire. Higher-frequency data
Key features
  • Replay historical forex charts candle by candle without future knowledge
  • Place trades manually on real charts with entries, stops and targets
  • Add notes, tags, strategy checklists and chart screenshots to every trade
  • View 40+ trading statistics including win rate, profit factor, expectancy and Monte Carlo simulation
  • Prop firm challenge mode with profit targets and drawdown limits
  • Flow Coach AI analysis identifying 28 patterns in trading performance
  • Manual Pine Script indicator conversion on Max plan
  • Switch timeframes while replaying without seeing future candles
  • Separate trading journal for live trades with independent statistics
  • Rewind up to 50 candles within a session to retry trades
  • Fitted volatility surfaces with bid-ask-weighted curves across every expiration
  • Accounts for American-style options with early exercise, discrete dividends, and implied borrow rates
  • One-minute granularity historical data across 140+ symbols spanning 10 years
  • Realized volatility calculations from 385 intraday returns per day
  • Vol Screener, Vol Premium, Skew Scanner, and Earnings Vol analysis tools
  • Historical simulation using actual bid-ask prices and fitted vol surfaces
  • Python package for research workflows
  • Interactive visual dashboards for surface inspection and event studies
  • Model Context Protocol (MCP) integration for AI agent workflows
  • Greeks and constant-maturity metrics via API and dashboards
What makes it different
  • Statistical significance testing ensures patterns are not coincidence
  • Built specifically for forex with session-aware candle alignment and pips-based statistics
  • No peeking ahead: replay stops at current candle to eliminate hindsight bias
  • 14-day refund guarantee on first payment
  • Browser-based with no installation or downloads required
  • Arbitrage-free fitted volatility wings extending beyond quoted book using Lee-moment discipline
  • Accessible to quantitative researchers and AI workflows through Python, API, and MCP without requiring market-maker infrastructure
  • 10 years of consistent historical data at one-minute granularity across 140+ symbols for rigorous backtesting
Community votes00
DR (Domain Rating by Ahrefs)7 +5 (up) since last checkNot checked yet no change since last check
Trust Flow (Majestic)30
Citation Flow (Majestic)120
Referring domains (Majestic)20

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