1
Not ratedno reviews yetadded 2026
Paid
From $135 one-time
You are here9 tools
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9 Topic Clustering tools, ranked by readers
Every listed tool supports Topic Clustering. The order comes from 0 reader votes, never who paid. 2 have a free way in.
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4 data-backed ways into the list.
Top 5, side by side
The 5 most-voted tools on the facts readers ask about.
| Fact | #1 WriterZen | #2 Serpstat | #3 Keywrds.ai | #4 Moz | #5 InLinks |
|---|---|---|---|---|---|
| Reader votes | 0 | 0 | 0 | 0 | 0 |
| Rating | Not rated yet | 5.0 (1) | Not rated yet | Not rated yet | Not rated yet |
| Pricing model | Paid | Paid | Paid | Paid | Freemium |
| Starts at | $135 one-time | $50/mo | $19/mo | $20/mo | Custom pricing |
| Free way in | No | No | No | No | Yes |
| Saves | 0 | 0 | 0 | 1 | 0 |
| Added | 2026 | 2026 | 2025 | 2026 | 2026 |
What this costs
Here’s how all 9 tools break down by starting price.
Median entry price $44/moCheapest paid $19/moFree plan available 2 of 9
BoostedSponsored, does not affect rank
Your tool, in front of 9 competitors
Paid placements appear above the ranking, labelled honestly.
All 9 tools
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ToolPricingActions
Showing all 9 tools, ranked by 0 reader votes. Ties fall back to review count.
2
5.01 reviewadded 2026
Paid
From $50/mo
3
Keywrds.aiCheapest
Not ratedno reviews yetadded 2025
Paid
From $19/mo
4
MozVerified
Not ratedno reviews yetadded 2026
Paid
From $20/mo
5
Not ratedno reviews yetadded 2026
Freemium
Custom pricing
6
Not ratedno reviews yetadded 2026
Paid
From $129/mo
7
4.52 reviewsadded 2025
Paid
From $38/mo
8
AhrefsMust tryVerified
5.03 reviewsadded 2026
Paid
From $129/mo
9
Not ratedno reviews yetadded 2025
Freemium
Custom pricing
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4 questions
Common questions
Answers derived from the tools on this page.
How many Topic Clustering tools are there?
Siteefy's live index currently tracks 9 Topic Clustering tools, with 6 added in 2026. The count updates automatically as tools are published or retired.
Are there free Topic Clustering tools?
Yes. 2 offer a free plan alongside paid tiers.
How much do Topic Clustering tools cost?
Paid plans start at $19/mo (Keywrds.ai). Each row in the list above shows the tool's pricing model and starting price.
How is this Topic Clustering list ranked?
The list is waiting for its first reader votes. Voting on any tool creates the ranking, star ratings come from community reviews, and anyone can suggest a missing tool.