Free vs Paid Keyword Tools: Which Do You Need?
Free keyword tools are enough for most stores in the free vs paid keyword tools choice. Google’s autocomplete, People Also Ask, Keyword Planner, Trends, and Search Console cover discovery, demand, and tracking. Paid tools start around $129 a month and earn it once you publish weekly or fight bigger competitors.
Short answer: start with Google’s free tools, and pay only when a tool saves you more hours than it costs.
Free vs Paid Keyword Tools at a Glance
| Free tools | Paid tools | |
|---|---|---|
| Cost | $0 | $129 to $139 a month for the popular suites |
| Keyword ideas | Yes, from real searches | Yes, faster and in bulk |
| Search volume | Ranges | Specific estimates |
| Competitor keywords | No | Yes |
| Difficulty scores | No | Yes, as estimates |
| Your own query data | Yes, in Search Console | The same Search Console data |
What Free Keyword Tools Can Do
Free keyword tools can do the whole research job for a small store: they find the phrases, size the demand, and track the results. Most people assume free means a toy. But all five tools come from Google, and Google owns the data every paid tool is trying to estimate.
Autocomplete is the one I lean on most. Google’s own help page says autocomplete predictions reflect real searches that have been done on Google, adjusted for language, location, and trending interest. A paid tool estimates how often a phrase gets typed, while autocomplete shows you that people type it.
People Also Ask does the same job for questions. Search your main keyword, open a few of the boxes, and Google keeps handing you the next question a shopper has. Those questions make good subheadings once you’ve picked the topic.
From there, Keyword Planner puts numbers on the list. It shows estimates of the searches a keyword gets each month and what an ad click would cost. You need a Google Ads account with billing details added to use it, but you don’t have to run an ad.
Google Trends then tells you when to publish. It scores interest in a search from 0 to 100 over time, so you can see the month demand starts to climb. For a store, that curve matters more than the volume number, since a gift guide published in December misses the October searches that decide December sales.
Search Console then closes the loop with your own store’s data. Its Performance report shows the clicks, impressions, click-through rate, and average position for every search you already show up for. The quick wins hiding in Search Console are usually worth more than anything a subscription finds in month one.
| Free tool | The question it answers |
|---|---|
| Autocomplete | What do shoppers type? |
| People Also Ask | What do they ask next? |
| Keyword Planner | About how many search for it? |
| Google Trends | When does demand peak? |
| Search Console | What do I already show up for? |
The free stack does have limits, and I won’t pretend it doesn’t. Keyword Planner often shows wide ranges like 100 to 1K for accounts that aren’t running ads, and nothing in the stack shows you a competitor’s keyword list. For a store with a few dozen pages to plan, neither gap changes what you’d build.
The free stack also covers more of the keyword world than you’d guess. Ahrefs reports that keywords with fewer than 10 searches a month make up almost 93% of its U.S. keyword database. Nearly every keyword a small store can win is a long, specific phrase, and autocomplete shows those for nothing.
What Do Paid Keyword Tools Add?
Paid keyword tools add two things free tools can’t: your competitors’ keywords and speed. A paid tool lists every keyword a competing store ranks for, and it turns an afternoon of manual digging into a ten-minute export.
That speed costs about $130 a month. Semrush’s SEO plan is $139 a month, and Ahrefs Lite is $129 a month with a $29 Starter plan under it.
Both also have free tiers. Semrush caps a free account at 10 reports a day and one project, and the free version of Ahrefs gives limited access to its site explorer and site audit. Those tiers are fine for a spot check and too small to plan a quarter of content with.
| Job | Free stack | Paid tool |
|---|---|---|
| See what a competitor ranks for | Guess from their menu and titles | Full list in one export |
| Judge how hard a keyword is | Read page one yourself | A score from 0 to 100 |
| Pull 500 keyword ideas | An hour or two | A few minutes |
| Track rankings daily | Search Console averages | Daily positions per keyword |
Just keep the numbers in perspective. Every tool’s volume is a modeled estimate, and my look at whether keyword tools are accurate found they’re good for direction and poor for precision. Paying buys you consistency, not truth.
The same caution applies to difficulty scores. Each tool builds its score mostly from the links pointing at the pages on page one, and each tool counts those links differently. A keyword marked easy in one tool can show up as hard in another, so read page one yourself before you trust either.
Also, no paid tool sells secret keywords. Every phrase in those databases came from the same searches Google shows you pieces of for nothing. You’re paying for organization and speed, which is a fair trade at the right workload and a bad one before it.
Free vs Paid Keyword Tools for a Shopify Store
Free keyword tools win for a Shopify store under about $1M a year. A store’s keyword list is mostly its own products and collections, and autocomplete plus Search Console already cover those.
Take a store that sells adjustable beds. You type “adjustable beds for” and Google fills in sleep apnea, side sleepers, and seniors. That’s the exact method I used for Ergomotion, and the store’s total sales went from $2.73M to $3.71M over the last 12 months without a paid keyword tool in the plan.
A paid tool would have told me the same phrases with a volume number attached. The number is nice to have, but it doesn’t change which page you build. What changes the result is picking keywords that drive sales, and you find those by reading page one, not a dashboard.
Fieldsheer’s plan started the same way. I typed “heated ___ for women” into Google, and autocomplete handed back vests, gloves, socks, jackets, and coats. That list became the content plan.
From there, the first buying guide reached number one for “best heated jackets for women” within two weeks. Google Search sales for that store are up 138% year over year, and the keyword research behind it cost nothing.
So do the math in dollars before you subscribe. A $129 plan is $1,548 a year. For a store publishing two posts a month, that same money pays for a year of writing help or a technical audit, and either one moves rankings more than a login does.
Pay When the Hours Add Up
Paying for a keyword tool makes sense once it saves you more hours than it costs. At $129 a month, a tool that saves you ten hours is costing you about $13 an hour, which is cheap labor. A tool you open twice a month is costing you $65 a visit.
You’ll know the hours are adding up when one of these is true:
- You publish four or more posts a month and research eats a full day of it.
- You’re moving past easy keywords into ones where national retailers hold page one.
- You manage more than one store, or you report rankings to a boss or a client.
The second sign is the big one. When you target low-competition keywords, you can look at page one and judge your odds by hand. Once you move into crowded searches, a competitor gap report shows you which keywords they win that you’ve never touched, and that report is hard to rebuild by hand.
But you don’t have to subscribe all year to get that report. Pay for one month, pull the competitor list and your gap list, export both, and cancel. One month of exports can feed a full year of content.
And if you hire help, the tool comes with the hire. Keyword and competitor research is built into my Shopify SEO services, so a store I work with doesn’t need its own subscription.
Which Should You Pick?
Pick free keyword tools if you’re a store under $1M publishing a few posts a month, and pick a paid tool if research takes you more than a day a month or you need competitor data. Most stores reading this belong in the first group.
You can run that test on yourself. Stay free if your catalog fits in your head, you publish a few times a month, and you can name your three main competitors. Go paid if you publish weekly, sell in a crowded category, or have to prove rankings to someone else.
If you can’t say what the tool will do for you this month, you don’t need it yet.
If you’re staying free, run the stack in this order:
- Type your product into Google and write down what autocomplete and People Also Ask give you.
- Run the list through Keyword Planner for demand estimates.
- Check Google Trends for the season, and plan to publish one to three months ahead of the peak.
- Open Search Console and look for searches where you already sit just off page one.
Whichever group you’re in, don’t skip the demand check. Ahrefs found that 96.55% of pages get zero traffic from Google, and writing about topics nobody searches for is one of the three reasons it gives. Ten minutes in Keyword Planner saves you a month of writing into a void.
What Is the Best Free Keyword Tool?
The best free keyword tool is Google Search Console once your store has a few months of data, and Google autocomplete before that. Search Console is the only tool, free or paid, that shows what your own pages already get impressions for. Autocomplete fills the gap while a new store waits for that data to build.
Is Google Keyword Planner Free?
Google Keyword Planner is free to use, but it sits inside Google Ads. You have to finish setting up an Ads account, including billing details, before it shows keyword ideas. You never have to launch a campaign.
Do Paid Tools Find Keywords Google Doesn’t Show?
Paid tools don’t find keywords Google doesn’t show. They collect the same searches in one place and add estimates on top. That’s why a low volume number shouldn’t scare you off a phrase your exact customer types.
Can a Shopify SEO App Replace a Keyword Tool?
A Shopify SEO app can’t replace a keyword tool, since apps edit pages and keyword tools research them. An app fills in titles, alt text, and redirects in bulk. It doesn’t tell you which phrase a collection should target, so you still need the free stack or a paid tool for that part.
Want Your Keyword List Built for You?
Free tools cover a small store’s research from start to finish, and paid tools buy speed and competitor data once publishing is constant. So start free, prove the process works, and let the workload tell you when to upgrade.
If you’d rather hand the research off, book a call. I’ll pull your Search Console live and show you the ten keywords to go after first, plus what a paid tool would and wouldn’t add for your store. If you want the ongoing work handled, that’s what my Shopify SEO services are for.
