Hindsight is sealed off
The chart stops at the current replay bar. Future candles do not exist until you step forward, so the entry you take is the entry you would have taken.
Backtesting workspace for Indian markets
Replay the market.
Replay the market.
Prove the edge before you risk capital.
Recapper walks NSE price action forward one candle at a time. You take the trade with the chart half-drawn — no hindsight, no scrolling ahead — and every entry, exit and note is timestamped against the bar it was taken on.
No card required
1 strategy, 1 session, unlimited replays
Your journal stays yours
NIFTY 50 NSE · 5 minute
1m5m15m1H1D
22,524.20
+44.20 (+0.20%)
11:25 · 02 Apr 25
1m → 1DCandle resolutions per session
8×Replay speeds, plus manual stepping
100%Decisions captured with their bar
0Orders routed to an exchange
Why backtests lie
Most “proven” strategies were reviewed with the answer visible.
Scrolling a chart backwards is not a test. The exits look obvious, the losing weeks get skipped, and the sample is whatever you remember. Recapper removes all three shortcuts.
The reasoning is captured
Notes and screenshots attach to the trade at the moment it is placed — not reconstructed on Sunday evening when the outcome is already known.
Sample size is visible
Every session reports its trade count next to its win rate, so a 70% edge over nine trades never gets mistaken for a proven system.
The workspace
Three surfaces, one loop: plan, replay, review.
Sessions
Scope an experiment, not a vague “backtest”
A session pins one strategy to one instrument and one date range. Rerun it, duplicate it with a tweak, and compare the two honestly — the scope never drifts mid-test.
- Progress tracking so a half-finished test is never read as a result.
- Duplicate and fork to change one variable at a time.
- Session scorecard with realised P&L, return, win rate and executions.
Sessions
Nifty opening range
NIFTYActive
P&L+₹18.4k
Return+3.68%
Win rate58.0%
Trades50
Bank Nifty momentum
BANKNIFTYCompleted
P&L-₹6.2k
Return-1.24%
Win rate41.7%
Trades36
Replay
Trade the bar you are standing on
Step candle by candle or run at 8× while the tape unfolds. Place market, limit and stop orders from the ticket, manage the position live, and let the fill logic price your slippage instead of assuming it away.
- Keyboard first — step, buy, sell and note without leaving the chart.
- Drawing tools that persist across sessions and replays.
- Position panel with live unrealised P&L and R multiple.
Replay controls
09:47 · 14 Aug 25
Fills this session
Buy 150 NIFTY @ 22 512.40 09:47
Stop moved to 22 508.00 10:12
Sell 150 NIFTY @ 22 544.80 +₹4,860
Space play/pause→ stepShift+→ 10 barsBSN
Journal & analytics
Review the decision, not just the P&L
Every execution lands in the ledger with its note, its risk and the bar it happened on. The dashboard then rolls sessions up into equity, drawdown and expectancy so patterns surface across tests, not inside one lucky week.
- Trade ledger with side, size, R multiple and reasoning.
- Portfolio view across every session and instrument.
- Tags and filters to isolate the setups that actually pay.
Trade ledger
| Instrument | Side | Entry | R | P&L |
|---|---|---|---|---|
| NIFTY | Long | 22 512.40 | 1.23 | +₹4,860 |
| BANKNIFTY | Short | 48 260.00 | -1.00 | -₹3,200 |
| RELIANCE | Long | 2 914.60 | 2.10 | +₹7,420 |
| HDFCBANK | Long | 1 642.15 | 0.45 | +₹1,180 |
Expectancy+0.42R
Profit factor1.68
Max drawdown-8.4%
Sample128 trades
How a test runs
From idea to verdict in one sitting.
Write the strategy
Entry, exit and invalidation in plain words, saved once and reused by every session that tests it.
Scope the session
Pick the instrument, the timeframe and the window. The session locks that scope for the whole run.
Replay and decide
Step the tape forward, take the trades your rules allow, and write the note while the outcome is still unknown.
Review the sample
Read expectancy, drawdown and the losing trades together. Keep the edge, or kill it with evidence.
Pricing
Start free on one strategy. Pay when it earns its keep.
Free trial
Prove the workflow on one idea before you pay for anything.
₹0
forever
No card, no expiry
Start backtesting free
Strategies 1
Live sessions 1
History window 6 months
- Bar-by-bar replay with full order ticket
- Trade journal with notes and screenshots
- Session scorecard: P&L, win rate, expectancy
- Multi-session comparison
- Data export and broker sync
Strategist
For the trader running one book and refining a handful of setups.
₹749
per month
Billed monthly · GST extra
Start 14-day trial
Strategies 25
Live sessions Unlimited
History window Full archive
- Everything in the free trial
- Unlimited sessions across every instrument
- Portfolio dashboard with equity and drawdown curves
- Multi-session comparison and tagging
- CSV export of trades and sessions
Desk
For prop desks and mentors reviewing other people’s decisions.
₹1,899
per month
Billed monthly · GST extra
Talk to us
Strategies Unlimited
Live sessions Unlimited
Seats 5 included
- Everything in Strategist
- Shared workspaces and reviewer comments
- Upstox account sync for live-vs-backtest deltas
- Session templates pushed to the whole desk
- Priority support with a named contact
Cancel anytime — sessions stay readable
Your journal is never used to train anything
GST invoice on every payment
Questions
Answers before you sign up.
No. Recapper is a research and review workspace. You replay historical price action and record the decisions you would have taken; nothing is routed to an exchange, and no order ever leaves the app.
NSE equities and index instruments, from 1-minute candles up to daily. Sessions are scoped to a date range, so you can rerun the same window as many times as you like without the outcome leaking backwards.
One strategy and one session, with the complete replay engine, order ticket and journal behind them. It is time-unlimited: keep the session as a permanent reference if that is all you need.
A spreadsheet records what you remember after the fact. Recapper timestamps every entry, exit and note against the bar it was taken on, so the review shows the decision as it actually happened.
Yes, from billing settings, effective at the end of the current cycle. Your sessions, trades and notes stay readable on the free tier even after a paid plan lapses.
Your next strategy deserves a real test.
Open a session, replay a quarter of price action, and find out whether the edge survives contact with the tape.