Best Keyword Research Tools in 2026
Updated
In short: Helium 10 is ranked #1 of 36 as of 4 October 2026, ahead of EHunt and Keyword Revealer. The best-ranked option with a free plan is EHunt. The lowest first paid tier on this page is Keyword Insights at $1/mo.
Finding useful search terms means weighing more than volume alone. These tools can help you explore keyword opportunities for marketing work; compare search volume and difficulty with search intent data, competitor keywords, and SERP analysis to see which research details are available. API access and keyword results limits are relevant when your work depends on moving or reviewing larger sets of data. Free-plan availability and paid-from pricing offer further points to check. Among the named options are Helium 10, EHunt, and Keyword Revealer. Consider which signals matter most to your research, then compare the listed access, analysis, and cost criteria.
36 keyword research tools ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
Recognised 40% · Phone app 26% · Documented 20% · Free plan 14% of the score
- 1 Helium 10 iPhone + Android RecognisedPhone appDocumentedFree plan 6.6
- 2 EHunt No phone app RecognisedPhone appDocumentedFree plan 6.4$9.99/mo Keyword difficulty: YesSearch volume data: Yes
- 3 Keyword Revealer No phone app RecognisedPhone appDocumentedFree plan 6.4Free Keyword difficulty: YesSearch volume data: Yes
- 4 Keyword Tool No phone app RecognisedPhone appDocumentedFree plan 6.4$68/mo
- 5 Marketing Miner No phone app RecognisedPhone appDocumentedFree plan 6.4Free Keyword difficulty: YesSearch volume data: Yes
- 6 QuestionDB No phone app RecognisedPhone appDocumentedFree plan 6.4$9.99/mo Keyword difficulty: YesSearch volume data: YesSearch intent data: Yes
- 7 CanIRank No phone app RecognisedPhone appDocumentedFree plan 6.2$49/mo
- 8 Keyword.io No phone app RecognisedPhone appDocumentedFree plan 6.0Free Keyword difficulty: NoSearch volume data: NoSearch intent data: Yes
- 9 KWFinder No phone app RecognisedPhone appDocumentedFree plan 5.9 Keyword difficulty: YesSearch volume data: YesSearch intent data: Yes
- 10 SearchVolume.io No phone app RecognisedPhone appDocumentedFree plan 5.7$29/mo Keyword difficulty: YesSearch volume data: YesSearch intent data: Yes
- 11 AlsoAsked No phone app RecognisedPhone appDocumentedFree plan 5.6$12/mo
- 12 Keyword Sheeter No phone app RecognisedPhone appDocumentedFree plan 5.6 Keyword difficulty: YesSearch volume data: Yes
- 13 Wordtracker No phone app RecognisedPhone appDocumentedFree plan 5.6$1.42/mo Keyword difficulty: YesSearch volume data: Yes
- 14 AnswerThePublic No phone app RecognisedPhone appDocumentedFree plan 5.5
- 15 Keyword Chef No phone app RecognisedPhone appDocumentedFree plan 5.5 Keyword difficulty: YesSearch volume data: YesSearch intent data: Yes
- 16 Bing Webmaster Tools No phone app RecognisedPhone appDocumentedFree plan 5.4
- 17 Google Keyword Planner No phone app RecognisedPhone appDocumentedFree plan 5.4 Keyword difficulty: YesSearch volume data: Yes
- 18 Keyword Cupid No phone app RecognisedPhone appDocumentedFree plan 5.4$9.99/mo Keyword difficulty: YesSearch volume data: YesSearch intent data: Yes
- 19 Keyword Discovery No phone app RecognisedPhone appDocumentedFree plan 5.4 Keyword difficulty: YesSearch volume data: YesSearch intent data: No
- 20 Keyword Insights No phone app RecognisedPhone appDocumentedFree plan 5.4$1/mo
- 21 Serpvox No phone app RecognisedPhone appDocumentedFree plan 5.4 Keyword difficulty: YesSearch volume data: YesSearch intent data: Yes
- 22 Twinword Ideas No phone app RecognisedPhone appDocumentedFree plan 5.4$1/mo Keyword difficulty: YesSearch volume data: YesSearch intent data: Yes
- 23 eRank No phone app RecognisedPhone appDocumentedFree plan 5.3 Keyword difficulty: YesSearch volume data: Yes
- 24 Soovle No phone app RecognisedPhone appDocumentedFree plan 5.3 Keyword difficulty: NoSearch volume data: NoSearch intent data: No
- 25 WordStream Free Keyword Tool No phone app RecognisedPhone appDocumentedFree plan 5.3 Keyword difficulty: YesSearch volume data: Yes
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which keyword research tool is ranked first on Samsung Mobile US Press?
Helium 10 is ranked #1 of 36 with a score of 6.6. EHunt is second and Keyword Revealer third.
How many of these have a free plan?
8 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Keyword Insights has the lowest first paid tier we found: $1/mo.
How is this list ranked?
Ranked mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation. Paid placements never change a rank.