By the Finapolis Research Desk. Last updated 9 June 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 four tools are really fighting over. All four are good. They are good at different parts of the trip. Below is where each one earns its place, and where it quietly hands the problem back to you.
The 30-second version
- Finviz: the fast, free screen and the chart. Where almost everyone starts.
- Koyfin: a near-Bloomberg wall of global data and the best macro dashboards here. Where you look things up.
- Fiscal.ai: an AI that will answer questions about 100,000 companies, cheaply. Where you explore.
- Finapolis: the one that does not stop at the data. It grades the business, values it, writes the report, builds the trade, and watches the portfolio. Where an idea becomes a decision.
- Cheapest: Finviz and Fiscal.ai. Most complete: Finapolis ($89/mo). Most people end up using two.
What you are really comparing: the tab problem
Here is the thing the feature lists miss. Serious investors rarely use one tool. They use five, 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 its grade, its valuation, and its research straight into a trade and a portfolio, with nothing retyped. The other three are excellent at one stop on that trip. Only Finapolis tries to own the whole route.
At a glance: Finapolis vs Finviz vs Koyfin vs Fiscal.ai
| Capability | Finapolis | Finviz | Koyfin | Fiscal.ai |
|---|---|---|---|---|
| Stock screener | yes | yes | yes | yes |
| Global market coverage | no | no | yes | yes |
| Proprietary grade vs peers (A-D) | yes | no | no | no |
| DCF modeling | yes | no | Partialpartial | yes |
| Fact-checked research reports | yes | no | no | Partialpartial |
| AI co-pilot / chat | yes | no | Unverified | yes |
| Data breadth (estimates, transcripts, macro) | Partialpartial | no | yes | yes |
| Technical charts and heat maps | Partialpartial | yes | yes | Partialpartial |
| Backtesting | yes | no | no | yes |
| Options strategy engine | yes | no | no | no |
| Active portfolio (rebalance, tax-loss) | yes | no | Partialpartial | no |
| Connected workflow (screen to trade to track) | yes | no | no | no |
| Free tier | no | yes | yes | yes |
| Price / month (June 2026) | $89-499 | Free-$39.50 | Free-$299 | Free-$79 |
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/mo) real-time quotes and 200 presets. If your morning is "what is moving and what fits my filters," nothing here beats it. It just never pretends to tell you what a company is worth.
Koyfin is what you reach for when Yahoo Finance runs out of road and Bloomberg is $24,000 too expensive. The data goes deep, the macro dashboards are the best in this group, and it covers the whole world. 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 four. Ask it about almost any company on the planet and it answers from real filings, and it does it cheaply. For roaming the market and poking at ideas, it is excellent. It will not grade the business, hand you a sourced report, or build the trade.
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 staring at 6,000 tickers. The morning we wrote this, it left 26 names standing. Every filter shows a histogram, so you can see where a company sits in the pack before you touch a slider.
The Finapolis Screener with the Finapolis Recommend preset. 26 names cleared the quality bar the morning this was captured.
Click one of them and you do not land on a blank tab. You land on a grade. The Analyzer scores the business A to D on fundamentals, technicals, and financial health, then sets a DCF and a fair-value target right next to the live price, so the first thing you learn is whether the company is any good, not where to start digging.
The Analyzer Score Card. Grade, target price, and the full metric snapshot on one screen.
Want the reasoning behind the grade? It is already written. The Reporter produces an institutional-style report, how the company makes money, its risks, its competitors, where every claim is checked against the filing it came from.
A Reporter report. Five sections, each claim traceable to a 10-K, 10-Q, or transcript.
From there it is one click to the Trader, which turns your target price into a ranked, defined-risk options trade with the payoff drawn out before you commit, and one more to the Portfolio, which tells you when your weights have drifted and where a tax-loss harvest is hiding. Same screen. Same context. Nothing retyped. That is the whole pitch, and it is hard to feel from a feature table, which is why it is worth a 14-day trial rather than a paragraph.
Is this actually institutional-grade, or just polished?
Fair question, and exactly the one to ask of anything wearing the word "AI." Three ways to check it.
Every grade comes from 4 pillars, Profitability, Quality, Stability, and Growth, across 11 metrics, weighted 60% on the level and 40% on the trend, and scored against at least 5 sector peers rather than the whole market. It is a method you can read, not a black box.
Second, the research is auditable, which most "AI research" is not. A real line from the current Microsoft report reads that Microsoft Cloud "generated $168.9 billion of $281.7 billion in revenue," sitting on a roughly $392 to $400 billion contracted backlog, with each figure traced back to the 10-K and the Q4 2025 earnings call. You are never asked to take the number on faith.
So which one should you actually buy?
Match the tool to how you work, not to a spec sheet.
- You mostly want to find stocks, fast and cheap: 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 five tabs: Finapolis.
And there is no shame in two subscriptions. The most common setup we see is a cheap, broad scanner up front and Finapolis doing the real work on the handful of names that survive it. Want the head-to-heads? We wrote them: Finviz vs Finapolis, Koyfin vs Finapolis, and Fiscal.ai vs Finapolis.
Try it on a stock you already own. In about 30 seconds you will see its grade, its DCF, and a sourced report.
Grade your first stock free14-day trial, no cardPricing
| Platform | Free tier | Paid plans |
|---|---|---|
| Finviz | yes | Elite $39.50/mo ($299.50/yr) |
| Fiscal.ai | yes | Pro ~$39/mo; Max ~$79/mo |
| Koyfin | yes | Plus ~$39/mo; Pro ~$79/mo; Advisor ~$209-299/mo |
| Finapolis | no14-day trial | Pro $89/mo ($79 annual); Wealth $499/mo ($400 annual) |
Best stock research platform FAQ
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 cheap, AI-driven exploration across the world. Finapolis wins when you want to take a US stock from screen to grade to valuation to a sourced report to a trade, in one place.
What is the best free stock research platform?
Finviz, for screening and charts. Fiscal.ai's free plan is also strong and even includes a DCF, and Koyfin has a free tier. Finapolis skips the free tier but gives you the whole platform for 14 days.
What is the best AI stock research tool?
Fiscal.ai and Finapolis. Fiscal.ai is the better roaming research chat across 100,000+ names. Finapolis goes further on the names it covers: its AI sits on top of grades, a DCF, and reports whose claims trace to filings.
Is Finapolis worth $89 a month?
If you are buying it to replace one tool, probably not. If it replaces your screener, your valuation spreadsheet, a research subscription, an options calculator, and a portfolio tracker, and stops you re-keying between them, the math usually works. Try it for two weeks and see whether you stop opening the other tabs.
Which platforms cover international stocks?
Koyfin and Fiscal.ai. Finapolis and Finviz are US-only; Finapolis covers about 6,000 US stocks, ETFs, and options.
Can I use more than one of these?
Most people do, and it is the smart move. Scan broadly and cheaply with Finviz or Fiscal.ai, then let Finapolis do the heavy lifting on the names you are serious about.
Do any of them tell me what to buy?
No, and you should be wary of one that claims to. Finapolis grades, DCF values, and target prices are there to inform your call, not make it. What you see on screen is a snapshot from that moment, not a buy signal.
