Choosing an intraday screener in India: five checks before comparing tools

Start with freshness, universe and a completed observation

A scan is only useful if you know which stocks it checked and how old the prices were. A screener table can refresh every few seconds while the prices behind it are 15 minutes old. A candle that is still forming can also change before it closes. Keep these questions apart from how fast the screen redraws.

In India, scanning the stocks that have F&O contracts is different from scanning the futures and options contracts themselves. A stock filter does not check every expiry and strike for you. The stock screener guide explains the broader research task; this page focuses on the operational checks needed for an intraday workflow.

The five criteria below are a comparison method. They do not establish that a particular scan is profitable or that any resulting stock is suitable for a trade.

Five criteria to specify before opening a screener

• Pre-open coverage

  Ask whether the product includes pre-open observations and which fields are populated. A scanner described as live does not by itself establish pre-open auction support. No universal pre-open support was verified across these tools.

• Data freshness and evaluation cadence

  Record the price timestamp, your plan's data access and the scan schedule. A rapid refresh setting cannot remove a delay in the supplied feed or cause a condition to use a completed bar earlier.

• The exact F&O universe

  Choose either underlying equities eligible for derivatives or individual contracts. Preserve the membership date and symbol list so a later result can be reproduced.

• Notification delivery to the actual phone

  Distinguish the scan match, platform alert creation and device receipt. None of the provider descriptions below is an end-to-end phone test.

• Total recurring cost

  Check the plan, data access, alert allowance and any separate channel charge. A free scan, a paid faster feed and an alert subscription can be sold separately.

What five providers document, and what remains open

Checked 14 October 2026. Documentation is not a performance benchmark; pre-open support and phone latency remain untested.

Tool	Documented timing	Universe / feature boundary	Cost check still needed
Chartink	FAQ: a 1-minute alert first runs at 9:16 am on data up to 9:15:59; notifications may be delayed by up to 1 minute.	Scans run on all NSE stocks by default, or a watchlist, Nifty 50 or Nifty 100; contract-level scope not established here. In a public no-login scan on 15 October 2026 the default list also returned index rows and no NSE SME (SM/ST series) stocks.	FAQ gives 2,000 SMS and email alert credits a month (one credit per alert, not per stock); confirm the current Premium price at checkout.
TradingView	Screener table has 10-second / 1-minute / never refresh settings; how fresh the data is depends on your plan.	Stock Screener and custom Pine Screener are different tools; identical arbitrary NR7 logic not verified here.	Real-time NSE needs a paid plan; Essential is ₹995 a month billed annually (₹11,940 a year, labelled a special price). Which tier you need for screener alerts was not checked.
StockEdge	FAQ explicitly says curated scans update EOD and live scans are not offered.	Daily/weekly/monthly scans documented; do not treat as a continuously evaluated intraday scan.	Plan feature/allowance required for the chosen research task; price not benchmarked.
Trendlyne	Feature matrix lists Premium screener alerts at 15 minutes, 30 minutes or hourly.	Preserve the specific screener and eligible symbol set; no contract-universe test performed.	Confirm account plan and selected alert cadence.
FYERS One	Current product page documents technical screeners; no numeric refresh guarantee captured.	Desktop platform screeners cover trends/intraday movements; exact custom condition and contract scope unverified.	Confirm what your broker account includes; do not infer all services are free.

Each row follows its named provider source. TradingView data/cost references are tv-data/tv-price. Unknowns are explicit; no old user comments or marketing superlatives become measured results.

Sources: [1], [2], [3], [4], [5], [6], [7]

A scan schedule is different from the data it sees

Chartink's alert FAQ says a 1-minute alert starts running at 9:16 am and pairs this with data as of 9:15:59 am; its 5-minute example is a first run at 9:20 am on data as of 9:19:59 am. It also says that because it processes many scans, there could be a delay of up to 1 minute before you are notified. Those statements explain the provider's intended schedule, not what any particular phone received during this review.

TradingView's screener walkthrough offers ten-second, one-minute or no automatic table refresh. Its coverage page says Basic NSE data is 15 minutes delayed and real-time NSE is included from Essential upward. The data-delay explainer also records the provider's conflicting NSE F&O help wording.

StockEdge's FAQ is explicit about end-of-day curated scans. Such a list can support a later research exercise, but it is not evidence of an intraday live scan. Trendlyne's documented screener-alert cadences and FYERS One's product-level scanner description need their own account checks before a timing comparison.

No clock was measured on these services. A claim that one tool alerts first would need matching conditions, instruments, source timestamps and repeated device-receipt records.

Define an NR7 variant before translating it

NR7 is commonly used as shorthand for a narrow-range condition. For this exercise we define an exact, strict variant ourselves: the most recent completed daily high-minus-low range must be smaller than each of the preceding six completed daily ranges. Equal minima fail. This declared tie policy is part of the test, not a claim that every public scan uses it.

The next condition requires a later completed observation's close to be strictly greater than the narrow-range day's high. Equality fails. The observations use arbitrary units and fictional identifiers; there is no security, current price, order or recommendation.

These details matter when translating a condition into Chartink's filter controls or TradingView's available screener fields. If a native filter cannot express the exact rule, do not silently substitute an approximate indicator. A custom Pine implementation would require its own compilation and observation checks; none was run for this page.

The table below checks our rule against invented numbers on our own computer. It is not a claim that the rule was built and tested inside Chartink or TradingView.

Fictional NR7 boundary cases evaluated locally

Case	Seven completed ranges, oldest first	Later close / prior high	Strict combined condition
A	9,7,8,6,5,4,3	51 / 50	True: 3 < 4 and 51 > 50.
B	9,7,8,6,5,4,4	51 / 50	False: 4 equals an earlier minimum.
C	9,7,8,6,5,4,3	50 / 50	False: the close equals the boundary.

All inputs author assumptions, evaluated in JavaScript on 14 October 2026. tv-screen explains workflow distinctions, not these values. No stocks or market observations used and no platform pass rate implied.

Source: [2]

Carry the same specification into both tools

Begin with the same saved fictional inputs or a sufficiently old, licensed research window. Declare the universe, daily range definition, tie policy, later observation interval and completed-bar rule. Record whether the chosen interface can represent each clause exactly.

For Chartink, preserve the complete filter tree and the universe setting. For TradingView, name whether the exercise uses the standard Stock Screener, Pine Screener or a chart indicator. Those surfaces have different capabilities; calling them all the screener makes a comparison hard to reproduce.

Keep unsupported clauses visible in the report. If the built condition uses different intervals or drops the tie requirement, describe it as a different implementation. The AI stock screener guide provides another exercise for checking whether plain-English conditions survive translation.

An accurate condition can still return an empty list. That is a valid result under the supplied inputs, not a reason to relax the specification during the same test.

How to collect a defensible phone-delivery measurement

1. 1

   Synchronise and name the clocks

   Record the observation time, server-visible alert time and device receipt time separately. Note timezone and clock uncertainty. A screenshot of a notification without its triggering observation cannot establish the full delay.

2. 2

   Freeze the configuration

   Preserve the scan, interval, universe, plan, notification channel and device settings. Do not change them between the two services and then attribute a difference solely to the vendor.

3. 3

   Retain every attempted event

   Keep delivered, duplicate, missing and late events in the log. Report missing deliveries separately from numerical latency; averaging only the successful fast events would conceal a material limit.

4. 4

   Report a narrow conclusion

   State the tested dates, sample, account plan and device. A result from one setup should not become a universal fastest-app claim. No such measurements are reported on this page.

Keep scan research out of the overfitting loop

It is easy to add filters after seeing which historical observations would have worked. Each added threshold can make the selected sample look cleaner without establishing that the rule generalises. Preserve the first specification and a separate window for checking it.

Record failed matches and rejected conditions as well as the final shortlist. When evaluating outcomes, keep costs and the chosen review horizon explicit. A scan match is a condition being satisfied; it does not specify a complete entry, exit, sizing or execution method.

The Chartink and Screener.in comparison separates financial research from technical scans and qualifies the available pricing evidence. A paid subscription can improve access to a feature without validating the trading idea behind the filter.

Choose by the missing requirement

For a practical decision, identify which criterion your existing workflow cannot satisfy: a documented universe, readable source times, a specific condition, an alert channel or an affordable plan. Test that requirement directly. Avoid assigning a single winner from a feature count.

The evidence here shows several different documented workflows and one made-up rule check. The remaining vendor implementation and phone timing work is open. That boundary is part of the comparison: a precise unknown is more useful than a fabricated speed score.

Sources

Every figure on this page comes from one of these. Each was checked on the date shown.

1. [1]Chartink: scan scheduling and alert FAQ · checked 14 Oct 2026
2. [2]TradingView: screeners workflow and refresh settings · checked 14 Oct 2026
3. [3]StockEdge: live-scan and scan-frequency FAQ · checked 14 Oct 2026
4. [4]Trendlyne: feature matrix and screener-alert cadence · checked 14 Oct 2026
5. [5]FYERS: current One desktop platform page · checked 14 Oct 2026
6. [6]TradingView: exchange-data entitlement and delay · checked 14 Oct 2026
7. [7]TradingView: India subscription prices · checked 14 Oct 2026