Best Keyword Tool Apps

248+ iOS apps curated and reviewed

4.1 avg rating
19 free apps
Updated August 2026

Finding the right keyword tool apps can be overwhelming with so many options. We've analyzed 248+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Compare top Keyword Tool Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1SEO Keyword Research ToolSEO Keyword Research ToolFree was $9.993.5★ (26)NoYesAug 2026
2Keyword Master SEO ToolKeyword Master SEO ToolFreeYesNoSep 2026
3vidIQ for YouTube & InstagramvidIQ for YouTube & InstagramFree4.8★ (19K)NoYesSep 2026
4Keyword Analyzer ToolsKeyword Analyzer ToolsFree4.2★ (5)YesNoMay 2026
5Keyword Scout: ASO ResearchKeyword Scout: ASO ResearchFree4.3★ (6)NoYesAug 2026
6The Keywords AppThe Keywords AppFree5.0★ (1)NoYesAug 2026
7SEO Rank Check & Keyword ToolSEO Rank Check & Keyword ToolFreeNoYesAug 2026
8Keyword Density - SEO EditionKeyword Density - SEO Edition$1.99 was $4.99NoNoMay 2026

Top Picks for Keyword Tool

SEO Keyword Research Tool#1

SEO Keyword Research Tool by Krager Labs LLC

Find Popular Searches & Trends
Editor's Choice
💼 Business
3.5(26 ratings)
FreeIn-App Purchases
SEO Keyword Research Tool screenshot 1
SEO Keyword Research Tool screenshot 2
SEO Keyword Research Tool screenshot 3
SEO Keyword Research Tool screenshot 4
SEO Keyword Research Tool screenshot 5
SEO Keyword Research Tool screenshot 6

This app helps you discover popular search terms and trends for Google and YouTube. It provides keyword suggestions, search volume, and cost-per-click data without requiring registration. Gain valuable market insights to improve your online presence.

vidIQ for YouTube & Instagram#3

vidIQ for YouTube & Instagram by vidIQ, Inc

AI Growth for YouTube & Reels
Worth Considering
📷 Photo & Video
4.8😐(19K ratings)
FreeIn-App Purchases
vidIQ for YouTube & Instagram screenshot 1
vidIQ for YouTube & Instagram screenshot 2
vidIQ for YouTube & Instagram screenshot 3
vidIQ for YouTube & Instagram screenshot 4
vidIQ for YouTube & Instagram screenshot 5
vidIQ for YouTube & Instagram screenshot 6

This platform helps YouTube creators grow their channels by providing AI-powered guidance, video idea generation, and performance analytics. It offers tools to optimize video content, understand audience engagement, and discover trending topics to increase views and subscribers.

What We Love

  • 🚀 Helpful for growing channel
  • 👍 Useful features and insights
  • 🚀 Provides video ideas and optimization
  • 👍 Great for small creators

Room to Improve

  • 🔒 Paywall for many features
  • 🐛 Inconsistent rating system
  • 🐛 Bugs and crashes

More Keyword Tool apps to explore

4
Keyword Analyzer Tools
Keyword Analyzer Tools
Keyword Analyzer Tools
Analyze Keywords In Given Text
Free

This tool analyzes text or websites to identify high-density keywords, helping users optimize content for better search engine performance. It presents keywords from most to least used, along with word count and density.

Keyword density analysisWebsite keyword extractionText content analysis
🔧 Utilities
(5)
ad-supported
5
Keyword Scout: ASO Research
Keyword Scout: ASO Research
Keyword Scout: ASO Research
Keyword Finder & Rank Tracker
Free

This tool helps indie developers and ASO professionals discover optimal keywords for app store listings. It provides insights into keyword difficulty, market saturation, and competitor strategies, along with tools to optimize titles and track rankings.

Keyword difficulty and saturation analysisCompetitor review analysis for pain pointsApp Store listing optimization studio
🛠️ Developer Tools
(6)
free with in-app purchases
6
The Keywords App
The Keywords App
The Keywords App
Keyword Research & SEO Tool
Free

This tool helps users discover relevant keywords to improve content visibility and ad targeting. It provides search volume, competition data, and related keyword suggestions. All searches are automatically saved for easy reference.

Instant keyword search volumeRecommended related keywordsAuto-save search history
🔧 Utilities
(1)
free with in-app purchases
7
SEO Rank Check & Keyword Tool
SEO Rank Check & Keyword Tool
SEO Rank Check & Keyword Tool
by Kridee Innovations Private Limited
Free
📊 Productivity
(0)
8
Keyword Density - SEO Edition
Keyword Density - SEO Edition
Keyword Density - SEO Edition
Increase your keyword ranking
$1.99
$4.99 | 60% OFF
🔧 Utilities
(0)
9
Keyword Hunt: ASO Tool
Keyword Hunt: ASO Tool
Keyword Hunt: ASO Tool
Boost ASO with astro keywords
Free
🛠️ Developer Tools
(0)
10
ASO Tool - AI Keyword Tracker
ASO Tool - AI Keyword Tracker
ASO Tool - AI Keyword Tracker
Track App Store keyword rank
Free

This app assists developers and marketers in optimizing their App Store presence. It offers real-time tracking of keyword rankings, competitor analysis, and AI-powered discovery of new keyword opportunities to enhance app visibility.

App Store keyword rank trackingCompetitor analysisAI-powered keyword discovery
🔧 Utilities
(6)
free with in-app purchases
11
RocketSEO
RocketSEO
RocketSEO
Next Level SEO in Seconds!
Free

This app uses AI to quickly generate relevant keywords for your business website. Save time on research and gain a competitive edge by discovering terms that can drive more traffic. Focus on growing your business with intelligent keyword suggestions.

AI-powered keyword generationIndustry-specific keyword suggestionsDrives website traffic
💼 Business
(0)
free with in-app purchases
12
Keyword Search Volume +planner
Keyword Search Volume +planner
Keyword Search Volume +planner
search volume, research & seo
Free

This app helps founders, marketers, and SEO specialists validate business ideas and identify content opportunities by providing live keyword metrics. It offers insights into search volume, CPC, competition, and trends, enabling data-driven decisions for marketing and product development.

Live keyword metricsMonthly search volumeAverage CPC
💼 Business
(6)
freemium
13
Keyword Rank Tracker
Keyword Rank Tracker
Keyword Rank Tracker
AI-Powered SEO Intelligence
Free
💼 Business
(0)
14
Keyword Search Tool & Planner
Keyword Search Tool & Planner
Keyword Search Tool & Planner
Keyword Research, SEO & Trends
Free
📊 Productivity
(0)
15
Keyword Butler
Keyword Butler
Keyword Butler
by Jaehyun Lee
Free
📡 News
(0)
16
ASOWise – ASO Keyword Tool
ASOWise – ASO Keyword Tool
ASOWise – ASO Keyword Tool
Keyword tracking Tool,Boosting
Free

This tool provides real-time App Store data to help optimize app visibility and track keyword performance. Analyze competitors, discover trending apps, and gain market insights to boost organic downloads.

Real-time keyword search resultsCountry-specific keyword rank trackingCompetitor monitoring and ranking analysis
📊 Productivity
(1)
freemium
17
Paraphrasing Tool AI
Paraphrasing Tool AI
Paraphrasing Tool AI
AI Based paraphrasing tool
Free

This tool helps rephrase articles, sentences, or words to make your writing more engaging and clear. It offers multiple modes and supports 13 languages, allowing you to efficiently transform your text.

Rephrases up to 5000 wordsMultiple paraphrasing modesSupports 13 languages
📚 Education
(1)
ad-supported
18
ASO Keyword Tracker: RanklyApp
ASO Keyword Tracker: RanklyApp
ASO Keyword Tracker: RanklyApp
Track keyword popularity
Free
🛠️ Developer Tools
(0)
19
TalkSEO - AI SEO Assistant
TalkSEO - AI SEO Assistant
TalkSEO - AI SEO Assistant
Keyword Research & Site Audit
Free
💼 Business
(0)
20
Keyword Trends Planner
Keyword Trends Planner
Keyword Trends Planner
by Diep Quoc Vuong
Free
🛠️ Developer Tools
(0)

FAQ about Keyword Tool

What are the best keyword tool apps for iPhone?
SEO Keyword Research Tool tops our keyword tool apps ranking as of August 2026, with a 3.5-star average from 26 App Store ratings, and it's free to download.
Yes — 19 of the top keyword tool apps we rank are free to download, including SEO Keyword Research Tool and Keyword Master SEO Tool.
SEO Keyword Research Tool has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 248+ keyword tool apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
This app helps you find popular search terms and trends for Google and YouTube. It provides valuable market data such as suggested keywords, search volume, and cost-per-click (CPC) to enhance your SEO efforts.
Key features include discovering suggested keywords, analyzing search volume for those keywords, and determining the average cost per click (CPC). It also offers market data insights and requires no registration to use.

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