Semrush vs Frase vs Mangools: Best SEO Tool for Your Budget

SEO tools range from free Chrome extensions to enterprise platforms costing thousands per month. The challenge is not finding a tool -- it is finding the right one for where you are right now. Overspending on features you do not need is as costly as under-investing in tools that could accelerate your growth.

This comparison covers three SEO tools that occupy distinctly different price points and use cases: Semrush as the enterprise-grade powerhouse ($139/mo), Mangools as the beginner-friendly all-rounder ($30/mo), and Frase as the content-focused optimizer ($15/mo). Understanding what each tool prioritizes will help you invest wisely.

Quick Comparison Table

| Feature | Semrush | Frase | Mangools | |---|---|---|---| | Starting Price | $139.95/mo | $15/mo | $29.90/mo | | Primary Focus | Full-suite SEO | Content optimization | Keyword research | | Keyword Database | 26+ billion keywords | N/A (content-focused) | 2.5+ billion keywords | | Keyword Research | Industry-leading | Basic | Strong and intuitive | | Content Optimization | SEO Writing Assistant | Core feature (AI-powered) | Not included | | Backlink Analysis | 43+ trillion links | Not included | Yes (LinkMiner) | | Site Audit | Comprehensive | Not included | Yes (SiteProfiler) | | Rank Tracking | Advanced | Not included | Yes (SERPWatcher) | | SERP Analysis | Detailed | SERP-based content briefs | Yes (SERPChecker) | | Competitor Analysis | Deep competitive intel | Content gap analysis | Basic | | AI Features | AI writing, ContentShake | AI content generation | Limited | | Free Trial | 7-day limited | No free plan | 10-day free trial | | Learning Curve | Steep | Minimal | Low | | Best For | Agencies and enterprises | Content writers and bloggers | Solo SEOs and beginners |

Pricing Breakdown

Semrush Pricing ($139.95 - $499.95/mo)

• Pro: $139.95/mo -- 5 projects, 500 keywords to track, 10,000 results per report
• Guru: $249.95/mo -- 15 projects, 1,500 keywords, content marketing toolkit, historical data
• Business: $499.95/mo -- 40 projects, 5,000 keywords, API access, Share of Voice

Semrush is the most expensive option by a wide margin. The Pro plan alone costs nearly five times what Mangools charges. However, Semrush packs more tools into a single subscription than most businesses could replicate by combining separate services.

Frase Pricing ($15 - $115/mo)

• Solo: $15/mo -- 4 articles/month, AI content generation, SERP analysis
• Basic: $45/mo -- 30 articles/month, team collaboration
• Team: $115/mo -- unlimited articles, 3 users, advanced analytics

Frase is the most affordable entry point on this list. At $15 per month, it costs less than a single restaurant meal. But the trade-off is clear: Frase does one thing -- content optimization -- and does not attempt to be a general SEO suite.

Mangools Pricing ($29.90 - $89.90/mo)

• Entry: $29.90/mo -- 100 keyword lookups/day, 200 keyword suggestions, 25 SERP lookups
• Basic: $44.90/mo -- 500 keyword lookups/day, unlimited suggestions, 75 SERP lookups
• Premium: $89.90/mo -- 1,200 keyword lookups/day, unlimited suggestions, 150 SERP lookups

Mangools hits a sweet spot for independent SEOs and small businesses. You get a genuine keyword research tool, rank tracker, backlink checker, and SERP analyzer for about the cost of a streaming subscription.

Try Semrush | Try Frase | Try Mangools

Feature Deep Dive

Keyword Research

Semrush operates the largest keyword database in the industry with over 26 billion keywords across 140+ countries. Its Keyword Magic Tool lets you explore topic clusters, filter by search intent, analyze keyword difficulty with precision, and identify content gaps in competitor strategies. The data depth is unmatched -- you can see estimated traffic, CPC, competitive density, SERP features, and trend data for virtually any keyword.

Mangools built its reputation on KWFinder, one of the most intuitive keyword research tools available. The interface displays keyword difficulty, search volume, CPC, and SERP results on a single screen without overwhelming new users. The database covers 2.5+ billion keywords -- smaller than Semrush but more than sufficient for most businesses. What Mangools sacrifices in raw data volume, it gains in usability. You can find profitable keywords in minutes rather than hours.

Frase approaches keywords differently. Rather than a standalone keyword research tool, Frase analyzes SERPs for a given topic and identifies the questions, subtopics, and entities that top-ranking pages cover. This is valuable for content creation but does not replace dedicated keyword research. You would typically use Frase alongside another keyword tool, not instead of one.

Content Optimization

Frase was built for this purpose and it shows. Enter a target keyword, and Frase analyzes the top search results, extracts common topics and headings, identifies content gaps, and generates an optimized content brief. The AI writer can draft sections based on the brief, and the real-time content scoring tells you how well your piece covers the topic compared to ranking competitors. For writers who want data-backed content guidance, Frase is the most focused tool here.

Semrush offers the SEO Writing Assistant and ContentShake AI as part of its content marketing toolkit (available on Guru plans and above). These tools provide real-time optimization suggestions, readability scoring, tone analysis, and plagiarism checking. The integration with Google Docs and WordPress makes it practical for production workflows. It is not as laser-focused as Frase, but it is built into a much larger ecosystem.

Mangools does not include content optimization features. It focuses on the research and tracking side of SEO and leaves content creation to other tools. This is an honest limitation -- Mangools does not try to be something it is not.

Backlink Analysis

Semrush maintains a backlink database of over 43 trillion links. You can analyze any domain's backlink profile, identify linking domains, track new and lost backlinks, find link-building opportunities through gap analysis, and monitor toxic links that could harm your rankings. For agencies managing multiple client sites, this level of backlink intelligence is essential.

Mangools includes LinkMiner, a backlink analysis tool that covers the basics: referring domains, anchor text distribution, link strength metrics, and the ability to filter and sort by various criteria. It is not as comprehensive as Semrush, but it provides actionable backlink data for individual site owners and small teams.

Frase does not include backlink analysis. Its scope is limited to content.

Site Auditing and Technical SEO

Semrush provides a full site audit tool that crawls your website and identifies technical issues: broken links, missing meta tags, slow pages, crawlability problems, redirect chains, and more. The audit scores your site health and prioritizes issues by impact. For technical SEO, this is comprehensive.

Mangools offers SiteProfiler, which gives you an overview of any domain's SEO metrics, backlink profile, and top content. It is useful for competitive analysis and quick site evaluations, though it is not a full technical audit tool.

Frase does not include site auditing.

Rank Tracking

Semrush tracks keyword rankings across desktop and mobile, multiple locations, and various search engines. Daily updates, SERP feature tracking, and competitor position monitoring make it suitable for agencies reporting to clients.

Mangools includes SERPWatcher, a straightforward rank tracking tool that monitors your positions with daily updates, performance metrics, and email alerts. The interface is clean and provides exactly what most site owners need to know about their ranking progress.

Frase does not include rank tracking.

Ease of Use

Mangools wins this category decisively. Every tool in the Mangools suite prioritizes clarity. Screens are uncluttered, metrics are explained in context, and you can accomplish core tasks without reading documentation. If you are new to SEO, Mangools will not intimidate you.

Frase is also straightforward because its scope is narrow. The content brief and optimization workflow is intuitive: enter a keyword, review the analysis, write or optimize your content, check your score. New users can be productive within their first session.

Semrush has a steep learning curve that reflects its depth. The platform contains dozens of tools, each with its own interface, filters, and options. Experienced SEOs appreciate the density of features. Beginners may feel lost for the first few weeks. Semrush offers extensive documentation and courses through Semrush Academy, but expect an investment of time before you use the platform efficiently.

Who Each Tool Is For

Semrush Is For...

• SEO agencies managing multiple client websites
• In-house SEO teams at mid-to-large companies
• Businesses with established revenue that can justify $140+/month
• Professionals who need competitive intelligence, backlink analysis, PPC data, and technical audits in one platform
• Anyone who wants the most comprehensive SEO dataset available

Frase Is For...

• Content writers and bloggers focused on SEO-optimized articles
• Freelance writers who want to deliver data-backed content to clients
• Small businesses that publish regularly and want to improve content quality
• Anyone who already uses a separate keyword research tool and needs a content optimizer
• Budget-conscious users who need AI-assisted writing guidance at $15/month

Mangools Is For...

• Solo bloggers, niche site builders, and independent SEOs
• Small businesses doing their own SEO without a dedicated team
• Beginners who want to learn SEO with a tool that does not overwhelm
• Anyone who needs keyword research, rank tracking, and basic backlink data for under $30/month
• Users who value simplicity and speed over exhaustive data

The Verdict

If budget is your primary constraint, start with Frase at $15/month for content optimization and pair it with free tools like Google Search Console for keyword data. This is the most affordable path to better-ranking content.

If you want a balanced toolkit without enterprise pricing, Mangools at $30/month delivers genuine keyword research, rank tracking, SERP analysis, and backlink checking in a package that respects both your budget and your time. It is the best value for solo operators and small businesses.

If you are running an agency, managing multiple sites, or competing in highly competitive markets, Semrush at $139/month is the industry standard for a reason. The depth of data, breadth of tools, and competitive intelligence capabilities justify the investment when your revenue depends on SEO performance.

There is no shame in starting with Mangools or Frase and graduating to Semrush as your business grows. In fact, that is the path most successful SEOs take.

Start Your Mangools Trial | Try Frase for $15/mo | Try Semrush