KeySearch vs WriterZen (2026): which should you pick?
As of Oct 24, 2026, we pick KeySearch: it is second in our ranking of keyword research tools, though WriterZen grades higher (2.4 against 2.2) on value for money.
Checked Oct 23, 2026 · graded Oct 23, 2026 by ToolGPA
KeySearch grades higher on features. They get the same grade on the free plan, ease of use and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
KeySearch
Low-cost keyword research tool with rank tracking and site audits
WriterZen
Keyword clustering and AI content writing sold as a lifetime deal
Which one is for you
Pick KeySearch if
- Fits if you run a blog or niche site and want the main SEO jobs for about $20 a month
- Works for hunting long-tail keywords a small site can rank for
Look elsewhere if
- Tight if you track lots of keywords, as Starter stops at 80 and Pro at 200
- Skip it if you want keyword data in your other tools, as there's no API on record
- Not for you if you want longer than a week to try it, as there's no free plan
- Watch out: Foresight and team sharing are Pro only, at $40 a month on yearly billing
- Watch out: AI writing runs on monthly credits, 5,000 on Starter, and the listing doesn't say if the trial needs a card
Pick WriterZen if
- Fits if you would rather pay once than keep a subscription
- Works for a small content team planning topic clusters from allintitle data
Look elsewhere if
- Skip it if you want the writing tools for $135, as they need the $270 package
- Tight if you add people, since extra seats are $9 each a month even on a lifetime deal
- Pricey if you burn through credits, as extra keyword credits start at $19 per 10,000 and NLP credits are extra
- Watch out: the FAQ calls the packages a limited deal that can only be upgraded during the event
- Watch out: it's web only with no API on record, and it's a large suite with a learning curve
How we grade them
| 2.2GPAKeySearchFair | 2.4GPAWriterZenFair | |
|---|---|---|
| Value for money | CStarter is $20 a month on yearly billing, or $24 monthly, which sits a little above this category's $17 middle for research, tracking and audits in one account. Pro, with Foresight and team sharing, is $40. | AThe Keyword Research package is $135 once, for life, less than a year of this category's middle subscription. Watch the extras: more keyword credits are from $19 per 10,000, and Google NLP credits are sold separately. |
| Free plan and trial | CNo free plan, just a 7-day trial and a set of free stand-alone tools. The listing doesn't say whether a card is needed. The terms let you ask for a refund within 30 days of a first purchase. | CNo free plan, but a 15-day trial with no card needed. |
| Features | BVolume, CPC and a difficulty score by country, a rival's keywords, a backlink checker, YouTube research, rank tracking, audits and an AI writer. That covers the whole job. The limits are on the extras, like 80 tracked keywords on Starter. | CKeyword ideas, clustering, the Golden Filter, wildcard search and a revenue forecast. The $135 package leaves out Topic Discovery, the plagiarism checker and Content Creator, which come with the $270 one. |
| Ease of use | CNo rating on record. Looking up a keyword is quick, but it's a suite: rank tracking, audits and Foresight all need your site and keywords set up first, and AI use runs on monthly credits. | CNo rating on record. It's a big suite with filters, lists, clusters and forecasts, so expect a learning curve before it pays off. |
| Platforms and integrations | CWeb only. There's no desktop or phone app, and the listing shows no integrations and no API. | CWeb only, with nothing to connect beyond the OpenAI model inside its writing assistant, and no API on record. |
| Best for | keyword research with rank tracking included | keyword clustering you pay for once |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: KeySearch and WriterZen. How we grade
Where they differ
- KeySearch also covers rank tracking, site audit, backlink analysis, content optimization and youTube SEO.
- WriterZen also covers long-form writing.
At a glance
| KeySearch | WriterZen | |
|---|---|---|
| Pricing | Free trial | Free trial |
| Starts at | $20 per month, billed annually ($24 billed monthly) | $135 one-time for lifetime access (Keyword Research package) |
| Free plan | None | None |
| Free trial | 7-day free trial, cancel anytime | 15-day free trial, no credit card required |
| Web | ||
| Made by | KeySearch LLC | Resonance Technology Pte Ltd |
| Price read from | keysearch.co | writerzen.net |
| Checked | Oct 23, 2026 | Oct 23, 2026 |
Worth knowing
KeySearch
- There is no free plan after the 7-day trial, only a set of free stand-alone tools.
- Rank tracking is capped at 80 keywords on Starter and 200 on Pro, low next to dedicated rank trackers.
- Foresight and team collaboration are only on the Pro plan.
- Refunds can be requested within 30 days of the first purchase, according to the terms.
WriterZen
- The pricing page sells only lifetime packages, and its FAQ calls them a limited deal that can be upgraded only during the event.
- The $135 Keyword Research package has no Content Creator, plagiarism checker or topic discovery.
- Google NLP analysis needs NLP credits bought separately; extra keyword credits start at $19 for 10,000.
- Lifetime purchases carry a 21-day money-back guarantee.
Key features
KeySearch
- Keyword research and difficulty
- Look up search volume, cost per click and a difficulty score for keywords by language and country, with filters for long-tail ideas.
- Live SERP and competitor analysis
- See which pages rank for a keyword and what keywords a rival site ranks for, along with a backlink checker and URL metrics.
- Foresight recommendations
- On the Pro plan, Foresight reads a site's niche, authority and rankings and suggests keywords it could win and pages worth improving.
- AI content assistant
- Builds outlines and drafts from the pages that already rank and checks topic coverage. AI use is metered in monthly credits.
- Rank tracking and site audit
- Track positions for 80 or 200 keywords depending on plan, and audit up to 2,000 or 5,000 pages a month for technical problems.
- YouTube research
- Research keywords for YouTube and look at the videos that perform well in a niche.
WriterZen
- Keyword clustering
- Generate thousands of keyword ideas from one phrase, from people-also-search and phrase-match data, and cluster them into content topics with filters.
- Golden Filter
- Uses Google allintitle counts to find low-competition, high-value keywords and sorts them by ranking probability or potential value.
- Wildcard search and long-tail lists
- Explore every variation of a seed keyword with a * operator, and build lists filtered by CPC, word count, volume and allintitle data.
- Revenue forecast
- Estimates the sales potential of imported keywords at different ranking positions, based on organic click-through history by industry.
- Content Creator and AI assistant
- On the all-in-one packages, build outlines from the top 20 results, Reddit and Google Suggest, and write or rewrite with a GPT-4o mini assistant.
- Team workspaces
- Invite members to a shared workspace to assign and track tasks; extra seats cost $9 per seat a month.
Plans
KeySearch
Starter Plan$20
per month, billed annually ($24 billed monthly)
200 keyword searches a day, 80 tracked keywords, 2,000 audited pages and 5,000 AI credits a month. No Foresight.
Pro Plan$40
per month, billed annually ($48 billed monthly)
500 keyword searches a day, 200 tracked keywords, 5,000 audited pages, 15,000 AI credits a month, Foresight and team sharing.
WriterZen
Keyword Research$135
one-time purchase, lifetime access
50,000 keyword credits, 10,000 keywords clustering, 50 lists, Golden Filter, revenue forecast and team features. No content tools.
All-In-One Basic$270
one-time purchase, lifetime access
The keyword tools plus Content Creator with 50 articles a month, unlimited AI writing, plagiarism checks and topic lookups.
All-In-One Advanced$405
one-time purchase, lifetime access
100,000 keyword credits, 100 lists, 100 articles a month, unlimited keyword lookups and 2 extra member seats.
CustomCustom
Customized packages with unlimited member seats, by contacting WriterZen.
Ways to pay less
KeySearch
- Annual discount
Two months free with annual billing
KeySearch's pricing section offers annual billing with 2 months free: Starter is $20 a month instead of $24, and Pro $40 instead of $48.
WriterZen
No public discounts listed.
Common questions
Which is cheaper, KeySearch or WriterZen?
As of Oct 23, 2026, KeySearch starts at $20 per month, billed annually ($24 billed monthly), and WriterZen starts at $135 one-time for lifetime access (Keyword Research package).
Which has a free plan, KeySearch or WriterZen?
As of Oct 23, 2026, neither KeySearch nor WriterZen has a free plan. Both have a free trial.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.