The short answer
The best keyword research tool under $50 a month is Keysearch at $24 a month, because it bundles keyword research, difficulty scoring, rank tracking and a site audit in one price. LowFruits at $29.90 a month suits new sites hunting weak SERPs, Mangools at $29.90 a month billed annually suits beginners, and AnswerThePublic at $9 a month suits question research.
Key takeaways
- Every pick here costs under $50 a month on monthly billing, with Mangools Basic at $49 a month the highest entry price.
- Keysearch's old $17 price is gone: Starter now costs $24 a month, or $20 a month billed annually.
- LowFruits and AlsoAsked sell credits, so your monthly cost depends on how many SERPs you analyse, not only on the plan price.
- Free plans are thin everywhere: expect 3 to 5 searches a day before you need to pay.
| Pick | Best for | Starting price | Free plan |
|---|---|---|---|
| 1. Keysearch | Best all-round value under $50 | $24 per month (Starter); $20 per month billed annually | No free plan; 7-day trial |
| 2. LowFruits | Finding weak SERPs new sites can win | $29.90 per month (Standard); $20.75 per month billed annually | Limited free searches |
| 3. Mangools | Beginners who want five tools in one | $29.90 per month (Basic, billed annually); $49 per month billed monthly | Yes, limited free plan |
| 4. Ubersuggest | One site plus a lifetime option | $29 per month (Individual); $290 one-time lifetime | Yes, limited free plan |
| 5. Wordtracker | Fast keyword discovery on a budget | From $27 per month | Yes, limited free searches |
| 6. AnswerThePublic | Question research at $9 a month | $9 per month (Individual) | Yes, 3 searches per day |
| 7. AlsoAsked | People Also Ask trees for content plans | $15 per month (Basic) | Yes, 3 searches per day |
How we chose
The budget line did the first cut: every tool below costs under $50 a month on at least one billing option, with the price read from the vendor's own site or from multiple October and November 2026 reads of that vendor's pricing page. The second cut was fitness for the job — each pick has to answer a different question a buyer asks, from "what can you rank for" to "what are people asking". No hands-on testing was done. Prices were checked on 13 November 2026, and where a vendor changed its price recently, the old figure is named so you can spot stale reviews.
1. Keysearch: best for the best all-round value under $50
Keysearch is a budget SEO suite built for bloggers, affiliate marketers and niche-site builders. It covers keyword research, difficulty scoring from live SERP analysis, competitor analysis, backlink checking, rank tracking, a site auditor and YouTube research in one subscription. Starter allows 200 keyword searches a day, 80 tracked keywords with daily updates, a 2,000-page monthly site audit and 5,000 AI credits a month. Pro raises those limits to 500 searches a day, 200 tracked keywords, a 5,000-page audit and 15,000 AI credits, and adds Foresight, an AI recommender that is still marked beta.
The price changed, and that is worth knowing before you trust older reviews. Starter now costs $24 a month, or $20 a month billed annually ($240 a year). Pro costs $48 a month, or $40 a month billed annually. There is no free plan, but there is a 7-day free trial and a 30-day refund window.
Skip Keysearch if you need a large keyword database or advanced technical SEO. Its difficulty scores are SERP-based estimates, and its database is smaller than Ahrefs or Semrush. Choose it if one subscription has to cover research, tracking and a basic audit for one or two small sites.
2. LowFruits: best for finding weak SERPs new sites can win
LowFruits does one job: it scans live search results for signs of weak competition — forums, low-authority sites and intent mismatches — so a new site can find keywords it can realistically win. It also supports long-tail discovery, Google Autocomplete-based ideas and keyword clustering. It is not a full suite, and it has no traditional volume-sorted keyword database.
Pricing is credit-based, which changes how you should think about the cost. Pay-as-you-go packs start at $25 for 2,000 credits, with one credit per analysed SERP and credits expiring after one year. Standard costs $29.90 a month, or $20.75 a month billed annually ($249 a year), with 3,000 credits a month and 100 tracked keywords. Premium costs $79.90 a month, which is over the $50 line, so it is not the pick here. Monthly credits do not roll over, and pay-as-you-go accounts get three Keyword Finder searches every seven days.
Skip LowFruits if you want volume data, rank tracking at scale or a backlink database. Choose it if your site is new and your main question is "which keywords can you actually win this year".
3. Mangools: best for beginners who want five tools in one
Mangools is a five-tool SEO suite built around KWFinder for keyword research, with SERPChecker for SERP analysis, SERPWatcher for rank tracking, LinkMiner for backlink analysis and SiteProfiler for competitor metrics. Every paid plan includes all five tools; the tiers differ only in usage limits, not features. KWFinder searches a database of 2.5 billion keywords across 65,000+ locations, and shows search volume, CPC data and difficulty scores.
Basic costs $29.90 a month billed annually ($358.80 a year) or $49 a month billed monthly, with 100 keyword lookups a day, 200 keyword suggestions per search, 100 SERP lookups a day and 200 tracked keywords. Premium costs $44.90 a month billed annually with 500 lookups a day and 700 tracked keywords. There is a permanent free plan with 5 keyword lookups every 24 hours, and a 10-day free trial with higher limits. Mangools also sells a bundle that adds AI Search Watcher PRO: Basic in that bundle is $37.70 a month billed annually, so check which bundle the checkout page shows before you compare prices.
4. Ubersuggest: best for one site plus a lifetime option
Ubersuggest is Neil Patel's budget all-in-one SEO platform, covering keyword research, rank tracking, site audits, backlink analysis and content ideas. Individual costs $29 a month and covers one project, one user, 150 searches a day, 125 tracked keywords, 1,000 page scans and 5 competitors. Business costs $49 a month and Enterprise $99 a month, each also available as a one-time lifetime purchase at ten times the monthly price: $290, $490 and $990.
The lifetime deal is the reason Ubersuggest earns a place here. Individual lifetime at $290 pays for itself in ten months against monthly billing, and in about eighteen months against annual billing at $192 a year. The catch is that lifetime plans are non-refundable, and Ubersuggest has restructured its plans before, so a lifetime purchase is a bet on the tool staying as it is. Pricing is also geo-localised by IP address, so the figure you see at checkout may differ from the US list price. The free plan allows roughly 3 to 5 searches a day, and paid plans include a 7-day free trial.
5. Wordtracker: best for fast keyword discovery on a budget
Wordtracker is one of the oldest names in keyword research, and it stays close to classic keyword discovery: enter a seed keyword and get up to 10,000 related keywords per search, with search volume, competition data and a SERP preview. It also offers competitor keyword lookup and databases for Google, YouTube, Amazon and eBay on higher tiers.
Pricing starts from $27 a month. The Bronze tier at $27 a month returns 1,000 results per search with Google database access and basic filters. Silver costs $69 a month with 5,000 results per search and the YouTube, Amazon and eBay databases, and Gold costs $99 a month with 10,000 results, API access and custom territory filters. Annual billing discounts the tiers by roughly 20 to 40%, and a 7-day free trial of Silver is available. The free tier allows 3 basic searches a day on the website.
Skip Wordtracker if you want rank tracking, backlink data or a site audit — it does keyword discovery and little else. Choose it if you want a fast, simple lookup tool and you already get tracking and audits elsewhere.
6. AnswerThePublic: best for question research at $9 a month
AnswerThePublic is a search listening tool that turns Google and Bing autocomplete data into visual maps of the questions, prepositions and comparisons people type around a keyword. It answers a different question from the rest of this list: not "how hard is this keyword" but "what are people actually asking".
Individual costs $9 a month, with 100 searches a day, one region, search volume data and high-resolution visual exports. Pro costs $99 a month with unlimited searches, CSV export, comparisons, alerts and up to 3 users, and Expert costs $199 a month. The free plan allows 3 searches a day with no exports. The jump from Individual to Pro is steep — ten times the price — and the production features that justify Pro, CSV export and search volume in bulk, only arrive at that tier, so most solo creators should stay on Individual.
Skip AnswerThePublic if you need volume, difficulty or ranking data. Choose it if your content plan starts from real questions.
7. AlsoAsked: best for People Also Ask trees for content plans
AlsoAsked maps the live People Also Ask questions Google shows for a search term into a branching tree, showing the follow-on questions people ask next. That tree is directly useful for planning headings, FAQ sections and featured-snippet targeting, because it preserves the exact wording searchers use.
Basic costs $15 a month, or $12 a month billed annually ($144 a year), with 100 credits a month and search history kept for 24 hours. Lite costs $29 a month with 300 credits, and Pro costs $59 a month with 1,000 credits. A normal search uses 1 credit and a deep search uses 4. Every paid plan includes unlimited users, all regions and languages, and PNG export of the question map. The free tier allows 3 searches a day. Prices exclude tax.
Skip AlsoAsked if you need keyword volume or difficulty — it gives you questions, not answers. Choose it if you plan content around question clusters.
Worked cost: one year of keyword research for a solo blogger
Take a solo blogger publishing 4 articles a month who needs keyword research, question ideas and rank tracking. Three honest stacks fit under $50 a month:
- Keysearch alone: Starter at $20 a month billed annually is $240 a year, and it covers research, difficulty, tracking and a site audit. Nothing else is needed unless you want question trees.
- LowFruits plus AlsoAsked: LowFruits Standard at $20.75 a month billed annually ($249 a year) plus AlsoAsked Basic at $12 a month billed annually ($144 a year) comes to $393 a year, or $32.75 a month. You get weak-SERP finding and question mapping, but no rank tracking beyond LowFruits' 100 tracked keywords.
- Mangools plus AnswerThePublic: Mangools Basic at $29.90 a month billed annually ($358.80 a year) plus AnswerThePublic Individual at $9 a month ($108 a year) comes to $466.80 a year, or $38.90 a month. You get five SEO tools plus question maps, and you stay under $50 a month with room to spare.
The cheapest stack is not always the best one. If you publish weekly, Keysearch's 200 searches a day matter more than saving $5 a month. If your site is new, LowFruits' weak-SERP view is worth more than a bigger database you cannot win in yet.
How to choose
- You want one tool that does most jobs: Keysearch Starter at $24 a month.
- Your site is new and you need winnable keywords: LowFruits Standard at $29.90 a month.
- You are new to SEO and want a friendly suite: Mangools Basic at $29.90 a month billed annually.
- You run one site and hate subscriptions: Ubersuggest Individual lifetime at $290 once.
- You only need fast keyword lookups: Wordtracker from $27 a month.
- You plan content from questions: AnswerThePublic Individual at $9 a month, or AlsoAsked Basic at $15 a month if you want the full question tree.
For the next step after research, the best SEO rank tracking software list covers what to use once you have keywords to watch, and the best backlink checking tool post covers the link side of the same job. If you also need keyword data inside your own product or workflow, the best keyword research tool API list is the companion read. The SEO vs Google Ads guide helps you decide whether organic research or paid search deserves the budget first, and Adziq's SEO services page explains how professional keyword research is scoped when you outgrow a $50 tool.
Glossary: the terms on every pricing page
- Keyword difficulty: an estimate of how hard it is to rank for a keyword, usually scored from live search results. Every vendor calculates it differently, so do not compare scores across tools.
- SERP: the search engine results page. A "weak SERP" is one where low-authority pages already rank, which signals an opening.
- Credit: a unit of usage on credit-based tools. On LowFruits, one credit buys one analysed SERP; on AlsoAsked, one credit buys one standard search.
- Tracked keyword: a keyword the tool checks your ranking for on a schedule. The limit is per plan, and desktop and mobile tracking can consume separate slots.
Common questions
What is the cheapest keyword research tool under $50 a month?
AnswerThePublic Individual at $9 a month is the cheapest paid plan here, followed by AlsoAsked Basic at $15 a month. Both are single-purpose question tools, so they are cheap because they do one job, not because they match a full suite.
Is Keysearch still $17 a month?
No. Keysearch Starter now costs $24 a month, or $20 a month billed annually, and Pro costs $48 a month. The $17 figure survives only in older reviews that were never updated.
Can a free keyword research tool replace a paid one?
For a handful of searches a week, yes: Google Keyword Planner is free and the free tiers here allow 3 to 5 searches a day. For regular publishing, the daily limits run out fast, and none of the free tiers includes rank tracking or bulk analysis.
Which tool under $50 a month is best for a new site?
LowFruits, because it analyses live search results for weak pages already ranking, which is exactly what a new site needs to find keywords it can win. Pair it with a free Google Search Console account to check what you already rank for.
Sources
Adziq sells marketing services and does not accept payment for placement in its articles. See our editorial policy.
