Keyword Research

Keyword Research Tools Comparison: Finding the Right Fit for Your SaaS Business

Shivam Kumar
Nov 6, 2023
9 mins read
Keyword Research Tools Comparison: Finding the Right Fit for Your SaaS Business

Any SEO strategy relies heavily on doing the keyword research right. Luckily, there are plenty of tools to help SaaS companies with this crucial task. 

In this article, we’ll dive into these tools, exploring what they can do and where their strengths lie. We’ll also provide insights on choosing the tool for your business goals and target audience. Come along as we discover the keyword research companion for your SaaS venture.

Comparison of the best keyword research tools for SaaS businesses


SEMrush offers a comprehensive suite of SEO tools designed to streamline your keyword research and enhance your SEO rankings.

With the Keyword Overview tool, you simply input a keyword, and you’ll receive a comprehensive snapshot of crucial information. This encompasses key details such as the monthly search volume, trends indicating whether the keyword is gaining or losing popularity, and a host of other valuable insights.

As you continue scrolling, you’ll find a useful compilation of related keywords that could be advantageous for your use. Additionally, there’s a display of organic search results, allowing you to gauge where your competitors stand about the keyword. You’ll also have access to a section showcasing Google Ads employing the same keyword in their pay-per-click (PPC) advertising campaigns.

Semrush seamlessly integrates with the All in One SEO plugin, enabling you to discover supplementary, related keywords directly within WordPress effortlessly.

Not only does Semrush provide immediate access to search volumes and trends right on your screen, but you can also seamlessly integrate these keywords into your content with just a simple click.

Semrush has earned the top spot in the books of the world’s leading marketers as the premier keyword research tool. Their extensive range of tools is designed to support various aspects of your marketing strategy, including content marketing, digital marketing, social media, and beyond.


Ahrefs stands as another prominent keyword research tool with features akin to SEMrush. Through Ahrefs’ keyword explorer, generating keyword ideas is as simple as typing a keyword into the search bar, unveiling a comprehensive list of suggestions. 

Moreover, Ahrefs empowers you to pinpoint keywords your competitors are ranking for, presenting opportunities to create fresh content centered around those subjects.

A noteworthy competitive advantage offered by Ahrefs is its capability to track new keywords and observe shifts in search queries. In addition to keyword research, both Semrush and Ahrefs offer an array of other invaluable tools. These include functionalities like identifying broken links on your site, uncovering PPC keywords for Google Ads, and much more.

Moz Keyword Explorer

Moz is a prominent name in the realm of SEO tools, and it’s no wonder they offer a robust keyword research tool. Moz Keyword Explorer, available in both paid and free versions (with the free version limited to 10 queries per month), provides in-depth analysis, robust keyword suggestions, and predictive metrics.

Additionally, the tool offers extensive insights into SERPs, equipped with features for identifying long-tail keywords and search queries. It also furnishes recommendations to enhance your international ranking efforts.

Google Keyword Planner

It’s only natural that the most influential search engine on the planet would offer a tool to assist in pinpointing valuable keywords.

While Google Keyword Planner may not boast the extensive functionality of other tools, it possesses a unique advantage: direct data from Google itself. Initially designed for digital marketers advertising on Google, this tool is available for free to anyone with a Google Ads account.

Its usage is straightforward – input a keyword, and it will furnish you with details on estimated monthly searches, related keywords, and bidding insights.


Ubersuggest, a complimentary tool by Neil Patel, provides a wealth of resources, including search volume insights, keyword recommendations, and a gauge of keyword competitiveness (keyword difficulty).

The tool offers a comprehensive list of related keywords, complete with valuable data on trends, volume, cost per click (CPC), paid difficulty, and SEO difficulty.

Additionally, Ubersuggest features a Content Ideas section, presenting content linked to your chosen keyword, along with estimations of monthly visits, backlinks, and shares across platforms like Facebook, Pinterest, and Reddit.

For enhanced functionality, signing into Ubersuggest via your Google account unlocks additional benefits like expanded keyword suggestions, daily rank tracking, and personalized SEO tips. Moreover, Ubersuggest offers a Chrome extension to streamline your workflow and improve efficiency.


AnswerThePublic operates with a unique approach compared to most other keyword research tools. It offers keywords in an aesthetically pleasing visual format, although you also have the option to view them in a list or download results as a .csv file.

For those just starting out in SEO and keyword research, this tool is an excellent choice. No account creation is required. Simply input your keyword and explore the results. These results are derived from Google and Bing’s auto-suggest/autocomplete features. Clicking on any of these keywords initiates a Google search in a new tab, unveiling the ranking content and potential featured snippets.

The free version of AnswerThePublic serves as an invaluable resource for bloggers. However, if you conduct keyword searches frequently, their pro plan becomes a necessary tool in your arsenal.

Google Trends

Hailing from the search engine powerhouse, Google Trends is a complimentary keyword research tool that allows you to explore specific words, phrases, or related queries.

It provides a comprehensive breakdown of results, offering insights like regional interest, trends over time, and related topics and queries.

Additionally, the tool empowers you to compare two keywords, helping you discern which one is currently trending more prominently.


KeySearch is an affordable yet comprehensive keyword research tool catering to many users. From bloggers to small business owners, its user-friendly interface and versatile features make it accessible to all levels of SEO enthusiasts.

With KeySearch, a simple seed keyword and location selection yield up to 700 related keywords. Its color-coded difficulty scores and PPC/CPC data help pinpoint lucrative keyword opportunities, ensuring your content is poised for success.

KeySearch’s filtering feature unlocks the power of long-tail keywords. By refining results based on word count and search volume, you can target specific, high-intent keywords that attract potential buyers to your site.

KeySearch goes beyond keyword research, offering in-depth SERP analysis. This feature allows you to assess the top 10 Google search results for your chosen keywords, providing valuable insights to outperform the competition.

Factors to Consider

When it comes to selecting the right keyword research tool for your needs, several critical factors warrant careful consideration. Here are the key aspects to keep in mind:

  1. Price:

When considering a keyword research tool, it’s wise to factor in your budget. Look for a tool that not only fits within your financial parameters but also offers the features you require.

  1. Features:

Take a close look at the features provided by different tools. Determine which functionalities are essential for your specific objectives. Seek tools that offer comprehensive keyword analysis, competitor insights, and other pertinent metrics. Additionally, consider advanced features like SERP analysis and content optimization tools for a more holistic approach.

  1. Ease of Use:

Opt for a tool that offers an intuitive user experience, even if you’re not a seasoned SEO professional. Straightforward navigation and easily digestible reports can save you valuable time and effort. Consider tools that offer tutorials or demos to help you maximize their capabilities.

  1. Customer Support:

In the world of SEO, having reliable customer support can be a game-changer. Assess the level of support provided by the tool’s team. This encompasses factors such as response times, availability of live chat or phone support, and the comprehensiveness of their knowledge base or documentation. A responsive support system can significantly enhance your experience with the tool.

How to Use a Keyword Research Tool for Your SaaS Business:

To make the most of keyword research for your SaaS business, it’s crucial to adopt an approach. The steps below will lead you through using a keyword research tool to discover the keywords for your content and SEO strategy. Let’s begin!

  1. Brainstorm a List of Seed Keywords: Start by brainstorming a list of core keywords relevant to your SaaS business. These are the foundational terms that represent your products, services, and industry. They serve as the starting point for your keyword research.
  2. Use a Keyword Research Tool to Generate Related Keywords: Input your seed keywords into the keyword research tool. The tool will then generate a comprehensive list of related keywords and phrases. This expands your keyword pool, providing insights into the specific terms potential customers use in their searches.
  3. Analyze the Search Volume and Competition for Each Keyword: Once you have a list of potential keywords, it’s crucial to assess their search volume and competition. Search volume indicates how often a keyword is searched for, while competition reflects how many other websites are targeting the same keyword. Striking a balance between search volume and competition is vital to selecting high-impact keywords.
  4. Choose the Right Keywords for Your Content and SEO Strategy: Based on your analysis, select the most relevant and strategic keywords for your content and SEO efforts. Prioritize keywords with a combination of reasonable search volume and manageable competition. These chosen keywords will be the foundation for your content creation and optimization strategy.

By following these steps, you’ll harness the power of a keyword research tool to pinpoint the most effective keywords for driving organic traffic and achieving SEO success for your SaaS business.


Keyword research is the cornerstone of SaaS success. It’s about precision, not just traffic. Tools like Semrush, Ahrefs, Moz, and Ubersuggest are your allies in this journey. They elevate your online presence and drive growth.

Investing in these top-tier tools isn’t a choice—it’s a strategic move for SaaS excellence. Here’s to uncovering the perfect keywords and achieving remarkable success!

About Shivam Kumar

Shivam Kumar Shivam Kumar

Shivam Kumar, the Senior SEO Analyst at FirstPrinciples Growth Advisory, brings 6+ years of expertise in SEO and Digital Marketing. With a solid foundation in Internet Marketing, Website Optimization, SEO, SEM, and Social Media Marketing, Shivam is known for his commitment and versatile skill set, including proficiency in Video Editing. ...

About Shivam Kumar

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