SERP Gap Analyzer review (2026): is it worth $99 a month?
Finds keywords whose top Google results have weak spots to beat
SERP Gap Analyzer report card
Fair · out of 4.0 · graded Oct 23, 2026
Best for finding keywords where the top results are weak
SERP Gap Analyzer, from TopicRanker, looks for keywords where the pages ranking now are thin, old, slow or badly titled, and flags your own pages slipping in Search Console. It's sold through the Semrush App Center, so you need a Semrush account. Basic is $99 a month for 10 reports of 6 keywords each, reports take up to 15 minutes, and the maker's own pricing shows tighter limits than Semrush's listing.
Who SERP Gap Analyzer is for
- Fits if your site is small and you want keywords where the current top 10 has weak pages
- Works for Semrush users choosing which slipping pages to update first
Who SERP Gap Analyzer is not for
- Pricey if you want lots of keywords, as $99 a month gets 10 reports of 6; Premium is $149 for 30
- Skip it if you don't use Semrush, since it's sold through its App Center
- Not for you if you need results fast, as each report can take up to 15 minutes
- Watch out: TopicRanker's own cards show tighter limits than Semrush's, such as 1 domain and 3 reports on Basic
- Watch out: a scanned domain can't be deleted, only archived, and there's no API on record
Why SERP Gap Analyzer gets a 2.0
Five grades, each with its reason. The GPA is their average: an A is 4 points, an F is none.
- DValue for moneyBasic is $99 a month, well into this category's dearest tenth, for 10 reports a month with 6 suggested keywords each. Premium is $149 for 30 reports. That's a lot per keyword, even with the AI writing tools thrown in.
- CFree plan and trialNo free plan, but a 7-day free trial through the Semrush App Center. You'll need a Semrush account to start it.
- CFeaturesWeak-spot keyword reports, checks on ranking pages' titles, age, speed and length, Search Console fixes for slipping pages, an AI Search Score and GPT-4 drafts. It does its job, but 6 keywords per report on Basic is thin.
- CEase of useNo rating on record. You need a Semrush account, then a domain, seed topic, language and country for each report, and up to 15 minutes' wait for it.
- BPlatforms and integrationsWeb only, inside Semrush, and it connects to Google Search Console to find your pages that are slipping. No desktop or phone app, and no API on record.
What these grades rest on. Graded from this listing, whose facts were read from its Semrush App Center page and TopicRanker's own site on 23 October 2026. Not based on using the product, and shorter than our full reviews. How we review and grade.
Make SERP Gap Analyzer? Put this grade on your site
Paste this where you want the badge. It links here and follows the grade if it changes. About badges
<a href="https://toolgpa.com/tools/topicranker#review"><img src="https://toolgpa.com/badge/topicranker.svg" alt="SERP Gap Analyzer: 2.0 GPA on ToolGPA" width="196" height="56"></a>Where SERP Gap Analyzer stands among keyword research tools
SERP Gap Analyzer's GPA of 2.0 is higher than 4 of the 51 other keyword research tools we grade, and level with 7.
It stands best on platforms and integrations (B, above 26 of 51) and worst on value for money (D, above 0).
Its paid plans start at $99 a month, against a middle price of $18 for the category: 35 of the 35 others that charge start lower.
On features, ease of use and platforms it scores 2.3 out of 4. 15 tools score higher and cost less.
Each grade against the category
Every bar is all 52 keyword research tools we grade, cut by the letter each got. SERP Gap Analyzer’s own letter is outlined.
- DValue for moneyAbove 0 of 51, level with 3
- CFree plan and trialAbove 11 of 51, level with 29
- CFeaturesAbove 6 of 51, level with 36
- CEase of useAbove 0 of 51, level with 27
- BPlatforms and integrationsAbove 26 of 51, level with 25
Price against what you get
Each dot is one of 44 keyword research tools. Further left costs less, and higher up scores better on features, ease of use and platforms. Point at a dot to see which tool it is.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Keep SERP Gap Analyzer, or make your own?
Keep it
To replace SERP Gap Analyzer you would be making search volumes for millions of keywords, gathered and kept up to date. That is not a weekend's work, with an AI app builder or without one.
That makes this kind of software worth paying for, not this one in particular: 40 of the 51 other keyword research tools grade higher. It costs $1,188 a year.
What you could make
- Long-form writing: an app builder makes this well.
What you could not
- Search volumes for millions of keywords, gathered and kept up to date.
- A score built from what the top results for each keyword cover.
- The same prompts asked of ChatGPT, Perplexity, Gemini and Google's AI answers every day, and the answers kept.
- AI features, unless you pay a model provider for each request yourself.
What this rests on. SERP Gap Analyzer’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
What is SERP Gap Analyzer?
SERP Gap Analyzer, made by TopicRanker, looks for keywords whose top 10 Google results are weak: thin, outdated, slow or poorly titled pages, or sites with low authority. It also flags your own pages that are slipping in Google Search Console, grades how often AI chat tools mention your brand, and drafts titles, briefs and articles with AI. It is sold as an app in the Semrush App Center.
Worth knowing
- Sold through the Semrush App Center, so it needs a Semrush account; the maker's own site sends trial sign-ups there.
- Basic allows 10 analysis reports a month with 6 suggested keywords each; Premium raises that to 30 reports and 12 keywords for $50 more.
- Each report can take up to 15 minutes, and a scanned domain cannot be deleted, only archived.
- TopicRanker's own pricing cards show tighter limits than the Semrush listing, such as 1 domain and 3 reports a month on Basic.
Key features
- Weak-spot keyword reports
- Enter a domain and seed topic, with a language and country, and get suggested keywords rated easy, medium or hard, with search volume and the weaknesses of pages ranking now.
- Competitor page checks
- Flags ranking pages with keyword words missing from the title, no update in 6+ months, load times over 3 seconds, under 1,000 words or poor readability.
- Optimize Content with Search Console
- Connect Google Search Console to find your pages in the top 20 over 90 days that are sinking, or get many impressions but few clicks, and see what to fix.
- AI Search Grader
- Tests generated prompts on ChatGPT, Claude, Gemini, DeepSeek, Mistral and Llama, ranks your brand against rivals and gives a 0 to 100 AI Search Score.
- AI writing tools
- GPT-4 tools write post title ideas, content briefs, meta descriptions and full first drafts with Article Genie, based on the analysis.
- Seed topic suggestions
- Crawls your site and uses language analysis to suggest seed topics it covers often; there is no limit on suggestions, but one query runs at a time.
SERP Gap Analyzer pricing
As of Oct 23, 2026, SERP Gap Analyzer is a paid product with a free trial, starting at $99 per month.
- Starts at
- $99 per month
- Free plan
- None
- Free trial
- 7-day free trial through the Semrush App Center
| Plan | Price | What you get |
|---|---|---|
| Basic | $99per month | 3 domains, 6 suggested keywords per report, 10 analysis reports a month and 20 exports to XLS or PDF. |
| Premium | $149per month (Basic plus a $50 monthly upgrade) | Unlimited domains, 12 suggested keywords per report, 30 analysis reports a month and unlimited exports. |
Read from semrush.com on Oct 23, 2026. Prices change, so confirm with SERP Gap Analyzer before you buy.
Works with
SERP Gap Analyzer alternatives
- SERP Gap Analyzer vs Keyword Chef
Free trial · from $29/mo
- SERP Gap Analyzer vs KeySearch
Free trial · from $20/mo
- SERP Gap Analyzer vs Semrush
Free plan · from $117.33/mo
- SERP Gap Analyzer vs Ahrefs
Free plan · from $29/mo
Common questions
Does SERP Gap Analyzer have an Android app?
No Android app was listed when its pages were read on Oct 23, 2026. SERP Gap Analyzer is listed for Web.
Does SERP Gap Analyzer have an iPhone app?
No iPhone app was listed when its pages were read on Oct 23, 2026. SERP Gap Analyzer is listed for Web.
Is SERP Gap Analyzer open source?
SERP Gap Analyzer is not described as open source on its own site, as read on Oct 23, 2026.
Sources for this page
The prices, plans, platforms and features above were read from these pages on Oct 23, 2026.