Best stock research platform in 2026: Finapolis vs Finviz vs Koyfin vs Fiscal.ai

By the Finapolis Research Desk. Last updated 8 October 2026.

Picture a normal research afternoon. Finviz is open for the screen. A spreadsheet sits in the next tab, where you are rebuilding the same DCF you built last month. An earnings transcript is open behind that. Somewhere there is an options calculator you only half-trust, and a portfolio tracker that has no idea any of the others exist. You found a promising stock an hour ago. You still do not have a decision.

That stretch, between spotting a stock and actually doing something about it, is what these 4 tools are really fighting over. All 4 are good. They are good at different parts of the workflow. Below is where each one earns its place, and where it quietly hands the problem back to you.

What you are really comparing: the tab problem

Serious investors rarely use a single tool. They use several, and pay for it in tabs and copy-paste. You screen in one app, value in a spreadsheet, read the 10-K on a third site, price the option on a fourth, and track the result on a fifth. Nothing talks to anything, and the friction is where good ideas quietly die. Finapolis is a bet that this is the actual problem worth solving: a name you screen should carry straight through to its grade, its valuation, its research, an options strategy and a portfolio, without starting over in another app. The other 3 are excellent at one step of that workflow. Only Finapolis tries to cover all of it.

At a glance: Finapolis vs Finviz vs Koyfin vs Fiscal.ai

What Finviz, Koyfin, and Fiscal.ai are genuinely good at

Finviz is the tool nobody regrets. Free, fast, the heat map everyone screenshots, and on Elite ($39.50 a month in October 2026) real-time quotes and unlimited saved screener presets. If your morning is "what is moving and what fits my filters," nothing here beats it. It shows the analysts' mean target price, but never offers a valuation of its own.

Koyfin is what you reach for when Yahoo Finance runs out of road and a Bloomberg Terminal is out of budget: a single seat was reported at about $31,980 a year from January 2025. The data goes deep, the macro dashboards are the best in this group, and it covers more than 80,000 companies worldwide. The catch is that you are still the one who has to turn all that data into a view.

Fiscal.ai, which used to be FinChat, is the slickest AI of the 4. Ask it about almost any listed company, in the US or abroad, and it answers from real filings. For roaming the market and poking at ideas, it is excellent. What we did not find on the Fiscal.ai pages we could check: an A to D grade for the business or an options strategy tool.

What it actually feels like to use Finapolis

Start where you would anywhere: a screen. Finapolis ships a preset called Finapolis Recommend that bakes in a quality bias (big caps, fat margins, high returns on capital, low debt), so you are not scrolling the whole US-listed universe. On 8 October 2026 it matched 83 names. Filters show a histogram, so you can see where a company sits in the pack before you touch a slider.

Finapolis Screener with the Finapolis Recommend quality preset and a histogram on every filter. Captured 8 October 2026.

The Finapolis Screener with the Finapolis Recommend preset. The number of names that pass moves as the data updates.

Click one of them and you do not land on a blank tab. You land on a grade. The Analyzer header shows the Finapolis Grade, an overall A to D grade built from Fundamental and Technical grades (A to D) and a Health check (Pass or Fail). Next to it sit the current price and the Finapolis Price, Finapolis's own fair-value estimate from a blended EV/EBITDA multiple for the company and its peers. So the first thing you learn is how the business grades, not where to start digging.

Finapolis Analyzer: the A to D Finapolis Grade and the Finapolis Price in the header, and a DCF valuation on the Valuation tab (Lite view). Captured 8 October 2026.

The Analyzer. The grade, the fair-value estimate and the metric snapshot on one screen.

Want the business explained, not just graded? For more than 850 companies it is already written. The Reporter's institutional-style reports cover how the company makes money, its risks and its competitors.

Finapolis Reporter: a sourced equity research report with its table of contents and key takeaways. Captured 8 October 2026.

A Reporter report. 5 sections, from the Executive Summary to the Data Sources.

From there the ticker carries into the Trader, whose Strategy Finder lists options strategies for the stock, such as a collar or a protective put, and draws the payoff of the one you pick. One more step takes you to the Portfolio. Its Rebalance tab compares your current weights with an efficient-frontier target, and its Tax Harvesting tab is built for reviewing positions that show a loss. How a realized loss is treated for tax depends on your own situation, so that part belongs with a tax professional. The link between modules is hard to feel from a feature table, which is why it is worth a 14-day trial rather than a paragraph.

Can you check the work, or is it just polished?

Fair question, and exactly the one to ask of anything wearing the word "AI." You can check it in 2 places.

First, the DCF shows its assumptions. On the Analyzer's Valuation tab, switch to the Pro view and click Run DCF Model, and the output appears next to the inputs behind it: the scenario, the terminal method and multiple, beta, cost of debt and tax rate, plus the discount-rate build from the risk-free rate and equity risk premium through to WACC, the blended discount rate. A sensitivity chart shows how the result moves with WACC and the exit multiple. Change an input and run it again to see how the output responds. The DCF output, labelled My Price, is a different number from the Finapolis Price in the header, which comes from peer multiples.

Second, the research lists its sources. Each Reporter report closes with a Data Sources section that names the filings and earnings call transcripts it was built from, with their dates, so you can open the 10-K yourself and compare. Reports also carry a version date, and earlier versions stay available in the Report Version dropdown.

So which one fits how you work?

Match the tool to the job, not to a spec sheet.

• You mostly want to find stocks, fast and at low cost: Finviz.
• You live in global data and macro: Koyfin.
• You want an AI to roam the whole market with you: Fiscal.ai.
• You want a stock idea to become a defensible decision without 5 open tabs: Finapolis.

And there is no shame in 2 subscriptions. A common setup is a low-cost, broad scanner up front and Finapolis for the deeper work on the handful of names that survive it. For the head-to-heads, see Finviz vs Finapolis, Koyfin vs Finapolis, and Fiscal.ai vs Finapolis.

Pricing

Prices were checked on each vendor's pricing page on 8 October 2026. Fiscal.ai's site could not be re-checked in September or October, so its plans below come from its own pricing page as archived on 9 May 2026; check fiscal.ai for current prices and trial terms. Finapolis plan details are on the pricing page.

Frequently asked questions

What is the best stock research platform in 2026?

Whichever one fits the job. Finviz wins for fast, free screening and charts. Koyfin wins for global data and macro. Fiscal.ai wins for AI-driven exploration of global markets. Finapolis wins when you want to take a US-listed stock from screen to grade to valuation to a sourced report (where one exists) to an options strategy, in one place.

What is the best free stock research platform?

Finviz, for screening and charts. Koyfin has a free tier too, and Fiscal.ai's free plan is also strong and even includes a DCF. Finapolis skips the free tier but gives you the whole platform for 14 days, with no card.

What is the best AI stock research tool?

Fiscal.ai and Finapolis. Fiscal.ai is the better roaming research chat across global markets. Finapolis goes further on the US-listed names it covers: next to its Napoli AI chat sit the grades, a DCF you can rerun, and reports that list the filings they were built from.

Is Finapolis worth $89 a month?

It depends on how many tools it replaces. If you are buying it to replace 1 tool, probably not. If it takes the place of your screener, your valuation spreadsheet, a research subscription, an options calculator and a portfolio tracker, add up what those cost you today and compare. Pro is $89 a month, or $79 a month billed annually (October 2026). The 14-day trial will show you whether you stop opening the other tabs.

Which platforms cover international stocks?

Koyfin and Fiscal.ai. Finviz covers NASDAQ, NYSE and AMEX listings only. Finapolis covers US-listed stocks, ETFs and options, which includes the US listings of some non-US companies.

Can I use more than one of these?

Yes, and many investors do. Scan broadly on a free or low-cost plan from Finviz, Koyfin or Fiscal.ai, then use Finapolis for the deeper work on the names you are serious about.

Do any of them tell me what to buy?

They give you inputs, not instructions. Finapolis grades, DCF outputs and the Finapolis Price are there to inform your call, not make it, and what you see on screen is a snapshot from that moment. The options strategies the Trader lists show what a position would do, not whether to take it. Be wary of any tool, or any AI chat, that claims to hand you a verdict.